151
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Tang KC, Sension RJ. The influence of the optical pulse shape on excited state dynamics in provitamin D3. Faraday Discuss 2011; 153:117-29; discussion 189-212. [DOI: 10.1039/c1fd00035g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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152
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Schneider J, Wollenhaupt M, Winzenburg A, Bayer T, Köhler J, Faust R, Baumert T. Efficient and robust strong-field control of population transfer in sensitizer dyes with designed femtosecond laser pulses. Phys Chem Chem Phys 2011; 13:8733-46. [DOI: 10.1039/c0cp02723e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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153
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Wollenhaupt M, Baumert T. Ultrafast laser control of electron dynamics in atoms, molecules and solids. Faraday Discuss 2011; 153:9-26; discussion 73-91. [DOI: 10.1039/c1fd00109d] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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154
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Buckup T, Hauer J, Voll J, Vivie-Riedle R, Motzkus M. A General control mechanism of energy flow in the excited state of polyenic biochromophores. Faraday Discuss 2011; 153:213-25; discussion 293-319. [DOI: 10.1039/c1fd00037c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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155
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Excitation of Biomolecules by Coherent vs. Incoherent Light: Model Rhodopsin Photoisomerization. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proche.2011.08.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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156
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Grumstrup EM, Johnson JC, Damrauer NH. Enhanced triplet formation in polycrystalline tetracene films by femtosecond optical-pulse shaping. PHYSICAL REVIEW LETTERS 2010; 105:257403. [PMID: 21231627 DOI: 10.1103/physrevlett.105.257403] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Indexed: 05/30/2023]
Abstract
Polycrystalline tetracene films have been explored using weak ∼ 30 fs visible laser pulses that excite the lowest singlet exciton as well as coherent vibrational motion. Transient difference spectra show a triplet absorption which arises following singlet fission (SF) and persists for 1.6 ns without decay. Adaptive pulse shaping identifies multipulse optimal fields which maximize this absorption feature by ∼ 20%. These are comprised of subpulses separated by time delays well correlated with the period of lattice vibrations suggesting such modes control the yield of SF photochemistry.
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Affiliation(s)
- Erik M Grumstrup
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, USA
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157
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Sharma S, Singh H, Harvey JN, Balint-Kurti GG. Design of an infrared laser pulse to control the multiphoton dissociation of the Fe-CO bond in CO-heme compounds. J Chem Phys 2010; 133:174103. [PMID: 21054002 DOI: 10.1063/1.3494543] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Optimal control theory is used to design a laser pulse for the multiphoton dissociation of the Fe-CO bond in the CO-heme compounds. The study uses a hexacoordinated iron-porphyrin-imidazole-CO complex in its ground electronic state as a model for CO liganded to the heme group. The potential energy and dipole moment surfaces for the interaction of the CO ligand with the heme group are calculated using density functional theory. Optimal control theory, combined with a time-dependent quantum dynamical treatment of the laser-molecule interaction, is then used to design a laser pulse capable of efficiently dissociating the CO-heme complex model. The genetic algorithm method is used within the mathematical framework of optimal control theory to perform the optimization process. This method provides good control over the parameters of the laser pulse, allowing optimized pulses with simple time and frequency structures to be designed. The dependence of photodissociation yield on the choice of initial vibrational state and of initial laser field parameters is also investigated. The current work uses a reduced dimensionality model in which only the Fe-C and C-O stretching coordinates are explicitly taken into account in the time-dependent quantum dynamical calculations. The limitations arising from this are discussed in Sec. IV.
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Affiliation(s)
- Sitansh Sharma
- Center for Computational Natural Sciences and Bioinformatics, International institute of Information Technology, Hyderabad 500032, India.
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158
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Ruetzel S, Stolzenberger C, Fechner S, Dimler F, Brixner T, Tannor DJ. Molecular quantum control landscapes in von Neumann time-frequency phase space. J Chem Phys 2010; 133:164510. [DOI: 10.1063/1.3495950] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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159
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Spanner M, Arango CA, Brumer P. Communication: Conditions for one-photon coherent phase control in isolated and open quantum systems. J Chem Phys 2010; 133:151101. [DOI: 10.1063/1.3491366] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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160
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Weber SM, Extermann J, Bonacina L, Noell W, Kiselev D, Waldis S, de Rooij NF, Wolf JP. Ultraviolet and near-infrared femtosecond temporal pulse shaping with a new high-aspect-ratio one-dimensional micromirror array. OPTICS LETTERS 2010; 35:3102-3104. [PMID: 20847792 DOI: 10.1364/ol.35.003102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We demonstrate the capabilities of a new optical microelectromechanical systems device that we specifically developed for broadband femtosecond pulse shaping. It consists of a one-dimensional array of 100 independently addressable, high-aspect-ratio micromirrors with up to 3 μm stroke. We apply linear and quadratic phase modulations demonstrating the temporal compression of 800 and 400 nm pulses. Because of the device's surface flatness, stroke, and stroke resolution, phase shaping over an unprecedented bandwidth is attainable.
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Affiliation(s)
- Stefan M Weber
- Université de Genève, GAP-Biophotonics, 20 rue de l'Ecole de Médecine, 1211 Genève 4, Switzerland
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161
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Control of chemical reactions using external electric fields: The case of the LiNC⇌LiCN isomerization. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.07.057] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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162
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163
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Brinks D, Stefani FD, Kulzer F, Hildner R, Taminiau TH, Avlasevich Y, Müllen K, van Hulst NF. Visualizing and controlling vibrational wave packets of single molecules. Nature 2010; 465:905-8. [DOI: 10.1038/nature09110] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Accepted: 04/20/2010] [Indexed: 11/09/2022]
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164
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Abstract
Ultrafast lasers are versatile tools used in many scientific areas, from welding to eye surgery. They are also used to coherently manipulate light-matter interactions such as chemical reactions, but so far control experiments have concentrated on cleavage or rearrangement of existing molecular bonds. Here we demonstrate the synthesis of several molecular species starting from small reactant molecules in laser-induced catalytic surface reactions, and even the increase of the relative reaction efficiency by feedback-optimized laser pulses. We show that the control mechanism is nontrivial and sensitive to the relative proportion of the reactants. The control experiments open up a pathway towards photocatalysis and are relevant for research in physics, chemistry, and biology where light-induced bond formation is important.
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165
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Ren Q, Ranaghan KE, Mulholland AJ, Harvey JN, Manby FR, Balint-Kurti GG. Optimal control design of laser pulses for mode specific vibrational excitation in an enzyme–substrate complex. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.03.089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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166
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Katsuki H, Chiba H, Meier C, Girard B, Ohmori K. Wave packet interferometry with attosecond precision and picometric structure. Phys Chem Chem Phys 2010; 12:5189-98. [PMID: 20405071 DOI: 10.1039/b927518e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Wave packet (WP) interferometry is applied to the vibrational WPs of the iodine molecule. Interference fringes of quantum waves weave highly regular space-time images called "quantum carpets." The structure of the carpet has picometre and femtosecond resolutions, and changes drastically depending on the amplitudes and phases of the vibrational eigenstates composing the WP. In this review, we focus on the situation where quantum carpets are created by two counter-propagating nuclear vibrational WPs. Such WPs can be prepared with either a single or double femtosecond (fs) laser pulse. In the single pulse scheme, the relevant situation appears around the half revival time. Similar situations can be generated with a pair of fs laser pulses whose relative phase is stabilized on the attosecond time scale. In the latter case we can design the quantum carpet by controlling the timing between the phase-locked pulses. We demonstrate this carpet design and visualize the designed carpets by the fs pump-probe measurements, tuning the probe wavelength to resolve the WP density-distribution along the internuclear axis with ~3 pm spatial resolution and ~100 fs temporal resolution.
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Affiliation(s)
- Hiroyuki Katsuki
- Institute for Molecular Science, National Institutes of Natural Sciences, Myodaiji, Okazaki 444-8585, Japan.
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167
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Yabushita A, Kobayashi T. Vibrational fine structures revealed by the frequency-to-time fourier transform of the transient spectrum in bacteriorhodopsin. J Phys Chem B 2010; 114:4632-6. [PMID: 20222701 DOI: 10.1021/jp9090014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A vibrational progression that is hidden in a featureless spectrum of induced absorption and stimulated emission was found in time-resolved absorption change spectra. The ultrahigh time resolution of the pump-probe measurement made by using an ultrashort laser pulse localizes the wave packet along the potential multimode hyper surfaces, represented by a vibrational progression. The transition energy of the induced absorption and stimulated emission corresponds to a localized point (space) on the hyper surface, which is visited by the wave packets with fixed phases.
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Affiliation(s)
- Atsushi Yabushita
- Department of Electrophysics, National Chiao-Tung University, 1001 Ta Hsueh Road, Hsinchu 3005, Taiwan.
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168
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Petersen FNR, Bohr HG. The mechanisms of excited states in enzymes. Theor Chem Acc 2010. [DOI: 10.1007/s00214-009-0589-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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169
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Briand J, Bräm O, Réhault J, Léonard J, Cannizzo A, Chergui M, Zanirato V, Olivucci M, Helbing J, Haacke S. Coherent ultrafast torsional motion and isomerization of a biomimetic dipolar photoswitch. Phys Chem Chem Phys 2010; 12:3178-87. [PMID: 20237707 DOI: 10.1039/b918603d] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Femtosecond fluorescence up-conversion, UV-Vis and IR transient absorption spectroscopy are used to study the photo-isomerization dynamics of a new type of zwitterionic photoswitch based on a N-alkylated indanylidene pyrroline Schiff base framework (ZW-NAIP). The system is biomimetic, as it mimics the photophysics of retinal, in coupling excited state charge translocation and isomerization. While the fluorescence lifetime is 140 fs, excited state absorption persists over 230 fs in the form of a vibrational wavepacket according to twisting of the isomerizing double bond. After a short "dark" time window in the UV-visible spectra, which we associate with the passage through a conical intersection (CI), the wavepacket appears on the ground state potential energy surface, as evidenced by the transient mid-IR data. This allows for a precise timing of the photoreaction all the way from the initial Franck-Condon region, through the CI and into both ground state isomers, until incoherent vibrational relaxation dominates the dynamics. The photo-reaction dynamics remarkably follow those observed for retinal in rhodopsin, with the additional benefit that in ZW-NAIP the conformational change reverses the zwitterion dipole moment direction. Last, the pronounced low-frequency coherences make these molecules ideal systems for investigating wavepacket dynamics in the vicinity of a CI and for coherent control experiments.
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Affiliation(s)
- Julien Briand
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg University, CNRS, IPCMS-DON, 23, rue du Loess, 67034 Strasbourg, France
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170
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Smitienko OA, Mozgovaya MN, Shelaev IV, Gostev FE, Feldman TB, Nadtochenko VA, Sarkisov OM, Ostrovsky MA. Femtosecond formation dynamics of primary photoproducts of visual pigment rhodopsin. BIOCHEMISTRY (MOSCOW) 2010; 75:25-35. [DOI: 10.1134/s0006297910010049] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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171
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Zgrablić G, Ricci M, Novello AM, Parmigiani F. Dependence of Photochemical Reactivity of the All-trans Retinal Protonated Schiff Base on the Solvent and the Excitation Wavelength. Photochem Photobiol 2010; 86:507-12. [DOI: 10.1111/j.1751-1097.2009.00697.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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172
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Kirrander A, Jungen C, Fielding HH. Control of ionization and dissociation by optical pulse trains. Phys Chem Chem Phys 2010; 12:8948-52. [DOI: 10.1039/c002517h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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173
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Cirmi G, Brida D, Gambetta A, Piacenza M, Sala FD, Favaretto L, Cerullo G, Lanzani G. Observation and control of coherent torsional dynamics in a quinquethiophene molecule. Phys Chem Chem Phys 2010; 12:7917-23. [DOI: 10.1039/c000505c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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174
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Arndt M, Juffmann T, Vedral V. Quantum physics meets biology. HFSP JOURNAL 2009; 3:386-400. [PMID: 20234806 PMCID: PMC2839811 DOI: 10.2976/1.3244985] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Accepted: 09/17/2009] [Indexed: 11/19/2022]
Abstract
Quantum physics and biology have long been regarded as unrelated disciplines, describing nature at the inanimate microlevel on the one hand and living species on the other hand. Over the past decades the life sciences have succeeded in providing ever more and refined explanations of macroscopic phenomena that were based on an improved understanding of molecular structures and mechanisms. Simultaneously, quantum physics, originally rooted in a world-view of quantum coherences, entanglement, and other nonclassical effects, has been heading toward systems of increasing complexity. The present perspective article shall serve as a "pedestrian guide" to the growing interconnections between the two fields. We recapitulate the generic and sometimes unintuitive characteristics of quantum physics and point to a number of applications in the life sciences. We discuss our criteria for a future "quantum biology," its current status, recent experimental progress, and also the restrictions that nature imposes on bold extrapolations of quantum theory to macroscopic phenomena.
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Affiliation(s)
- Markus Arndt
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
| | - Thomas Juffmann
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
| | - Vlatko Vedral
- Atomic and Laser Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
- Department of Physics and Centre for Quantum Technologies, National University of Singapore, 2 Science Drive 3, Singapore 117543, Singapore
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175
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176
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Luo Q, Zheng H, Peng Y, Gao H, Lu L, Cai Y. Facile synthesis of well‐defined pH‐liable Schiff‐base‐type photosensitive polymers via visible‐light‐activated ambient temperature RAFT polymerization. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23708] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qing Luo
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province; College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Haimei Zheng
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province; College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Ye Peng
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province; College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Huan Gao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province; College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Lican Lu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province; College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Yuanli Cai
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province; Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province; College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
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177
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Kuroda DG, Singh CP, Peng Z, Kleiman VD. Mapping Excited-State Dynamics by Coherent Control of a Dendrimer's Photoemission Efficiency. Science 2009; 326:263-7. [DOI: 10.1126/science.1176524] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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178
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Nuernberger P, Lee KF, Joffre M. Femtosecond spectroscopy from the perspective of a global multidimensional response function. Acc Chem Res 2009; 42:1433-41. [PMID: 19601622 DOI: 10.1021/ar900001w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
At the microscopic level, multidimensional response functions, such as the nonlinear optical susceptibility or the time-ordered response function, are commonly used tools in nonlinear optical spectroscopy for determining the nonlinear polarization resulting from an arbitrary excitation. In this Account, we point out that the approach successfully developed for the nonlinear polarization can also be used in the case of a directly observable macroscopic quantity. This observable can be, for example, the electric field radiated in a nonlinear mixing experiment, the rate of fluorescence resulting from one- or two-photon absorption, or the rate of a photochemical reaction. For each of these physical processes, perturbation theory can be used to expand the measured quantity in a power series of the exciting field, and an appropriate global response function can be introduced for each order of perturbation. At order n, the multidimensional response function will depend on n variables (either time or frequency) and have the same general properties as the nonlinear susceptibility resulting, for example, from time invariance or causality. The global response function is introduced in this Account in close analogy with the nonlinear susceptibility or the time-ordered microscopic response. We discuss various applications of the global response function formalism. For example, it can be shown that in the weak field limit, a stationary signal induced in a time-invariant system is independent of the spectral phase of the exciting field. Although this result had been demonstrated previously, the global response function enables its derivation in a more general way because no specific microscopic model is needed. Multidimensional spectroscopy is obviously ideally suited to measure the global multidimensional response function. It is shown that the second (or third)-order response can be exactly measured with 2D (or 3D) spectroscopy by taking into account the exact shape of the exciting pulses. In the case of a 2D measurement of the third-order response, a particular projection of the complete 3D response function is actually measured. This projection can be related to a mixed time and frequency representation of the response function when the pulses are assumed to be infinitely short. We thus show that the global response function is a useful tool for deriving general results and that it should help in designing future experimental schemes for femtosecond spectroscopy.
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Affiliation(s)
- Patrick Nuernberger
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, Centre National de la Recherche Scientifique, 91128 Palaiseau, France, and Institut National de la Santé et de la Recherche Médicale, U696, 91128 Palaiseau, France
| | - Kevin F. Lee
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, Centre National de la Recherche Scientifique, 91128 Palaiseau, France, and Institut National de la Santé et de la Recherche Médicale, U696, 91128 Palaiseau, France
| | - Manuel Joffre
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, Centre National de la Recherche Scientifique, 91128 Palaiseau, France, and Institut National de la Santé et de la Recherche Médicale, U696, 91128 Palaiseau, France
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179
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Strong-field control and spectroscopy of attosecond electron-hole dynamics in molecules. Proc Natl Acad Sci U S A 2009; 106:16556-61. [PMID: 19805337 DOI: 10.1073/pnas.0907434106] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Molecular structures, dynamics and chemical properties are determined by shared electrons in valence shells. We show how one can selectively remove a valence electron from either Pi vs. Sigma or bonding vs. nonbonding orbital by applying an intense infrared laser field to an ensemble of aligned molecules. In molecules, such ionization often induces multielectron dynamics on the attosecond time scale. Ionizing laser field also allows one to record and reconstruct these dynamics with attosecond temporal and sub-Angstrom spatial resolution. Reconstruction relies on monitoring and controlling high-frequency emission produced when the liberated electron recombines with the valence shell hole created by ionization.
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180
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181
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182
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Control of retinal isomerization in bacteriorhodopsin in the high-intensity regime. Proc Natl Acad Sci U S A 2009; 106:10896-900. [PMID: 19564608 DOI: 10.1073/pnas.0904589106] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A learning algorithm was used to manipulate optical pulse shapes and optimize retinal isomerization in bacteriorhodopsin, for excitation levels up to 1.8 x 10(16) photons per square centimeter. Below 1/3 the maximum excitation level, the yield was not sensitive to pulse shape. Above this level the learning algorithm found that a Fourier-transform-limited (TL) pulse maximized the 13-cis population. For this optimal pulse the yield increases linearly with intensity well beyond the saturation of the first excited state. To understand these results we performed systematic searches varying the chirp and energy of the pump pulses while monitoring the isomerization yield. The results are interpreted including the influence of 1-photon and multiphoton transitions. The population dynamics in each intermediate conformation and the final branching ratio between the all-trans and 13-cis isomers are modified by changes in the pulse energy and duration.
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183
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Hymer WC, Welsch J, Buchmann E, Risius M, Whelan HT. Modulation of rat pituitary growth hormone by 670 nm light. Growth Horm IGF Res 2009; 19:274-279. [PMID: 19091612 DOI: 10.1016/j.ghir.2008.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2008] [Revised: 11/03/2008] [Accepted: 11/04/2008] [Indexed: 11/26/2022]
Abstract
In rat pituitary somatotrophs, cytochrome oxidase is co-packaged with growth hormone (GH) in some storage granules. Because this enzyme is thought to be the molecular photoacceptor of red-near infrared light, and because exposure of diverse tissue systems to 670 nm visible light affects their biological responses (e.g., wound healing), we tested the idea that exposure of rat pituitary cells, rat hemi-pituitary glands and rat pituitary homogenates to 670 nm light in vitro might alter GH storage and/or release. In this report we offer evidence to show that light treatment (670 nm, 80s, intensity 50 mW/cm(2), energy density 4 J/cm(2)) up-regulates GH release, in part by breakdown of intracellular, oligomeric GH as determined by gel filtration chromatography.
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Affiliation(s)
- W C Hymer
- Centralized Biological Laboratory, Penn State University, University Park, PA 16802-4803, USA.
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184
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Abramavicius D, Palmieri B, Voronine DV, Šanda F, Mukamel S. Coherent multidimensional optical spectroscopy of excitons in molecular aggregates; quasiparticle versus supermolecule perspectives. Chem Rev 2009; 109:2350-408. [PMID: 19432416 PMCID: PMC2975548 DOI: 10.1021/cr800268n] [Citation(s) in RCA: 337] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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185
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van der Walle P, Milder MTW, Kuipers L, Herek JL. Quantum control experiment reveals solvation-induced decoherence. Proc Natl Acad Sci U S A 2009; 106:7714-7. [PMID: 19416881 PMCID: PMC2683126 DOI: 10.1073/pnas.0901833106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Indexed: 11/18/2022] Open
Abstract
Coherent control holds the promise of becoming a powerful spectroscopic tool for the study of complex molecular systems. Achieving control requires coherence in the quantum system under study. In the condensed phase, coherence is typically lost rapidly because of fluctuating interactions between the solvated molecule and its surrounding environment. We investigate the degree of attainable control on a dye molecule when the fluctuations of its environment are systematically varied. A single successful learning curve for optimizing stimulated emission from the dye in solution is reapplied for a range of solvents with varying viscosity, revealing a striking trend that is correlated directly with the dephasing time. Our results provide clear evidence that the environment limits the leverage of control on the molecular system. This insight can be used to enhance the yield of control experiments greatly.
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Affiliation(s)
- P. van der Walle
- Stichting voor Fundamenteel Onderzoek der Materie Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands; and
| | - M. T. W. Milder
- Stichting voor Fundamenteel Onderzoek der Materie Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands; and
| | - L. Kuipers
- Stichting voor Fundamenteel Onderzoek der Materie Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands; and
- Optical Sciences Group, MESA+ Institute for NanoTechnology, University of Twente, 7500 AE Enschede, The Netherlands
| | - J. L. Herek
- Stichting voor Fundamenteel Onderzoek der Materie Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands; and
- Optical Sciences Group, MESA+ Institute for NanoTechnology, University of Twente, 7500 AE Enschede, The Netherlands
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186
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Abstract
This review summarizes progress in coherent control as well as relevant recent achievements, highlighting, among several different schemes of coherent control, wave-packet interferometry (WPI). WPI is a fundamental and versatile scenario used to control a variety of quantum systems with a sequence of short laser pulses whose relative phase is finely adjusted to control the interference of electronic or nuclear wave packets (WPs). It is also useful in retrieving quantum information such as the amplitudes and phases of eigenfunctions superposed to generate a WP. Experimental and theoretical efforts to retrieve both the amplitude and phase information are recounted. This review also discusses information processing based on the eigenfunctions of atoms and molecules as one of the modern and future applications of coherent control. The ultrafast coherent control of ultracold atoms and molecules and the coherent control of complex systems are briefly discussed as future perspectives.
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Affiliation(s)
- Kenji Ohmori
- Institute for Molecular Science, National Institutes of Natural Sciences; The Graduate University for Advanced Studies (SOKENDAI); and CREST, Japan Science and Technology Agency, Myodaiji, Okazaki 444-8585, Japan
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187
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188
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Kotur M, Weinacht T, Pearson BJ, Matsika S. Closed-loop learning control of isomerization using shaped ultrafast laser pulses in the deep ultraviolet. J Chem Phys 2009; 130:134311. [DOI: 10.1063/1.3103486] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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189
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Wang J, El-Sayed MA. Rapid Thermal Tuning of Chromophore Structure in Membrane Protein. J Phys Chem B 2009; 113:4184-6. [DOI: 10.1021/jp901560m] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jianping Wang
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
| | - Mostafa A. El-Sayed
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
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190
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Zgrablić G, Haacke S, Chergui M. Heterogeneity and Relaxation Dynamics of the Photoexcited Retinal Schiff Base Cation in Solution. J Phys Chem B 2009; 113:4384-93. [DOI: 10.1021/jp8077216] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Goran Zgrablić
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP, CH-1015 Lausanne-Dorigny, Switzerland, Sincrotrone Trieste Elettra, S.S. 14 km 163.5 in Area Science Park, 34012 Basovizza, Trieste, Italy, and Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 67034 Strasbourg Cédex, France
| | - Stefan Haacke
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP, CH-1015 Lausanne-Dorigny, Switzerland, Sincrotrone Trieste Elettra, S.S. 14 km 163.5 in Area Science Park, 34012 Basovizza, Trieste, Italy, and Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 67034 Strasbourg Cédex, France
| | - Majed Chergui
- Ecole Polytechnique Fédérale de Lausanne, Laboratoire de Spectroscopie Ultrarapide, ISIC, Faculté des Sciences de Base, BSP, CH-1015 Lausanne-Dorigny, Switzerland, Sincrotrone Trieste Elettra, S.S. 14 km 163.5 in Area Science Park, 34012 Basovizza, Trieste, Italy, and Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 67034 Strasbourg Cédex, France
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191
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Greenfield M, McGrane SD, Moore DS. Control of cis-Stilbene Photochemistry Using Shaped Ultraviolet Pulses. J Phys Chem A 2009; 113:2333-9. [DOI: 10.1021/jp801758v] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Greenfield
- Dynamic and Energetic Materials Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - S. D. McGrane
- Dynamic and Energetic Materials Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - D. S. Moore
- Dynamic and Energetic Materials Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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192
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Hayashi S, Tajkhorshid E, Schulten K. Photochemical reaction dynamics of the primary event of vision studied by means of a hybrid molecular simulation. Biophys J 2009; 96:403-16. [PMID: 19167292 DOI: 10.1016/j.bpj.2008.09.049] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Accepted: 09/26/2008] [Indexed: 11/19/2022] Open
Abstract
The photoisomerization reaction dynamics of a retinal chromophore in the visual receptor rhodopsin was investigated by means of hybrid quantum mechanical/molecular mechanical (QM/MM) molecular dynamics (MD) simulations. The photoisomerization reaction of retinal constitutes the primary step of vision and is known as one of the fastest reactions in nature. To elucidate the molecular mechanism of the high efficiency of the reaction, we carried out hybrid ab initio QM/MM MD simulations of the complete reaction process from the vertically excited state to the photoproduct via electronic transition in the entire chromophore-protein complex. An ensemble of reaction trajectories reveal that the excited-state dynamics is dynamically homogeneous and synchronous even in the presence of thermal fluctuation of the protein, giving rise to the very fast formation of the photoproduct. The synchronous nature of the reaction dynamics in rhodopsin is found to originate from weak perturbation of the protein surroundings and from dynamic regulation of volume-conserving motions of the chromophore. The simulations also provide a detailed view of time-dependent modulations of hydrogen-out-of-plane vibrations during the reaction process, and identify molecular motions underlying the experimentally observed dynamic spectral modulations.
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Affiliation(s)
- Shigehiko Hayashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, Japan.
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193
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Smitienko OA, Shelaev IV, Gostev FE, Fel'dman TB, Nadtochenko VA, Sarkisov OM, Ostrovsky MA. Coherent processes in formation of primary products of rhodopsin photolysis. DOKL BIOCHEM BIOPHYS 2008; 421:194-8. [PMID: 18853770 DOI: 10.1134/s160767290804008x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- O A Smitienko
- Emmanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 117977 Russia
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194
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Pelzer A, Ramakrishna S, Seideman T. Optimal control of rotational motions in dissipative media. J Chem Phys 2008; 129:134301. [DOI: 10.1063/1.2973633] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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195
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Olivucci M, Santoro F. Chemische Selektivität durch Kontrolle der Dynamik angeregter Zustände. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800898] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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196
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Carroll EC, Florean AC, Bucksbaum PH, Spears KG, Sension RJ. Phase control of the competition between electronic transitions in a solvated laser dye. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.01.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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197
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Barbatti M, Belz S, Leibscher M, Lischka H, Manz J. Sensitivity of femtosecond quantum dynamics and control with respect to non-adiabatic couplings: Model simulations for the cis–trans isomerization of the dideuterated methaniminium cation. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.01.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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198
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Hauer J, Buckup T, Motzkus M. Quantum control spectroscopy of vibrational modes: Comparison of control scenarios for ground and excited states in β-carotene. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.03.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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199
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Controlling the efficiency of an artificial light-harvesting complex. Proc Natl Acad Sci U S A 2008; 105:7641-6. [PMID: 18509052 DOI: 10.1073/pnas.0711927105] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Adaptive femtosecond pulse shaping in an evolutionary learning loop is applied to a bioinspired dyad molecule that closely mimics the early-time photophysics of the light-harvesting complex 2 (LH2) photosynthetic antenna complex. Control over the branching ratio between the two competing pathways for energy flow, internal conversion (IC) and energy transfer (ET), is realized. We show that by pulse shaping it is possible to increase independently the relative yield of both channels, ET and IC. The optimization results are analyzed by using Fourier analysis, which gives direct insight to the mechanism featuring quantum interference of a low-frequency mode. The results from the closed-loop experiments are repeatable and robust and demonstrate the power of coherent control experiments as a spectroscopic tool (i.e., quantum-control spectroscopy) capable of revealing functionally relevant molecular properties that are hidden from conventional techniques.
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200
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Wiederhecker GS, Brenn A, Fragnito HL, Russell PSJ. Coherent control of ultrahigh-frequency acoustic resonances in photonic crystal fibers. PHYSICAL REVIEW LETTERS 2008; 100:203903. [PMID: 18518538 DOI: 10.1103/physrevlett.100.203903] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Revised: 03/05/2008] [Indexed: 05/26/2023]
Abstract
Ultrahigh frequency acoustic resonances (approximately 2 GHz) trapped within the glass core (approximately 1 microm diameter) of a photonic crystal fiber are selectively excited through electrostriction using laser pulses of duration 100 ps and energy 500 pJ. Using precisely timed sequences of such driving pulses, we achieve coherent control of the acoustic resonances by constructive or destructive interference, demonstrating both enhancement and suppression of the vibrations. A sequence of 27 resonantly-timed pulses provides a 100-fold increase in the amplitude of the vibrational mode. The results are explained and interpreted using a semianalytical theory, and supported by precise numerical simulations of the complex light-matter interaction.
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Affiliation(s)
- G S Wiederhecker
- Max-Planck Research Group (IOIP), University of Erlangen-Nuremberg, Guenther-Scharowsky Str. 1/Bau 24, Erlangen 91058, Germany
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