1
|
Qi H, Lian Z, Fei D, Chen Z, Hu Z. Manipulation of matter with shaped-pulse light field and its applications. ADVANCES IN PHYSICS: X 2021. [DOI: 10.1080/23746149.2021.1949390] [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] Open
Affiliation(s)
- Hongxia Qi
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
- Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun, China
| | - Zhenzhong Lian
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
| | - Dehou Fei
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
| | - Zhou Chen
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, China
- Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun, China
| | - Zhan Hu
- Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun, China
| |
Collapse
|
2
|
Grohmann T, Manz J. On the impossibility of localised states for molecular rotors with cyclic potentials. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1473651] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Thomas Grohmann
- Department of Chemistry, Northwestern University, Evanston, IL, USA
- Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Jörn Manz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan, People's Republic of China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, People's Republic of China
| |
Collapse
|
3
|
Grohmann T, Seideman T, Leibscher M. Theory of torsional control for G16-type molecules. J Chem Phys 2018. [DOI: 10.1063/1.4997462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Thomas Grohmann
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, USA
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Tamar Seideman
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, USA
| | - Monika Leibscher
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover, Germany
- Institut für Physikalische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstr. 40, 24098 Kiel, Germany
| |
Collapse
|
4
|
Discrimination of 1,1-difluoroethylene nuclear spin isomers in the presence of non-adiabatic coupling terms. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
5
|
Grohmann T, Leibscher M, Seideman T. Laser-Controlled Torsions: Four-Dimensional Theory and the Validity of Reduced Dimensionality Models. PHYSICAL REVIEW LETTERS 2017; 118:203201. [PMID: 28581807 DOI: 10.1103/physrevlett.118.203201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Indexed: 06/07/2023]
Abstract
A multitude of possible applications along with unique coherence, chirality, and symmetry properties makes the control of molecular torsion with moderately strong, nonresonant laser pulses a fascinating subject. A description of combined rotation and torsion requires at least four angular degrees of freedom, which is challenging for the majority of systems. Lower-dimensional models have been proposed but also questioned. Here, we develop a four-dimensional model for the coupled rotational-torsional motions of molecules consisting of two identical moieties. By comparing four-dimensional calculations with a two-dimensional model, we define conditions under which the lower-dimensional model is valid. In particular, we point to the crucial role of coordinate dependence of the polarizability tensor. Our results do not agree with those of previous four-dimensional calculations but support the conclusions of recent experiments.
Collapse
Affiliation(s)
- Thomas Grohmann
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
| | - Monika Leibscher
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
- Institut für Physikalische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstraße 40, 24098 Kiel, Germany
| | - Tamar Seideman
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
| |
Collapse
|
6
|
Szidarovszky T, Yamanouchi K. Full-dimensional simulation of the laser-induced alignment dynamics of H2He+. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1297863] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Tamás Szidarovszky
- Department of Chemistry, School of Science, The University of Tokyo , Tokyo, Japan
| | - Kaoru Yamanouchi
- Department of Chemistry, School of Science, The University of Tokyo , Tokyo, Japan
| |
Collapse
|
7
|
Waldl M, Oppel M, González L. Controlling the Excited-State Dynamics of Nuclear Spin Isomers Using the Dynamic Stark Effect. J Phys Chem A 2016; 120:4907-14. [PMID: 26840424 DOI: 10.1021/acs.jpca.5b12542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stark control of chemical reactions uses intense laser pulses to distort the potential energy surfaces of a molecule, thus opening new chemical pathways. We use the concept of Stark shifts to convert a local minimum into a local maximum of the potential energy surface, triggering constructive and destructive wave-packet interferences, which then induce different dynamics on nuclear spin isomers in the electronically excited state of a quinodimethane derivative. Model quantum-dynamical simulations on reduced dimensionality using optimized ultrashort laser pulses demonstrate a difference of the excited-state dynamics of two sets of nuclear spin isomers, which ultimately can be used to discriminate between these isomers.
Collapse
Affiliation(s)
- Maria Waldl
- Institut für Theoretische Chemie, Universität Wien , Währinger Str. 17, 1090 Wien, Austria
| | - Markus Oppel
- Institut für Theoretische Chemie, Universität Wien , Währinger Str. 17, 1090 Wien, Austria
| | - Leticia González
- Institut für Theoretische Chemie, Universität Wien , Währinger Str. 17, 1090 Wien, Austria
| |
Collapse
|
8
|
Reichert M, Zhao P, Reed JM, Ensley TR, Hagan DJ, Van Stryland EW. Beam deflection measurement of bound-electronic and rotational nonlinear refraction in molecular gases. OPTICS EXPRESS 2015; 23:22224-22237. [PMID: 26368195 DOI: 10.1364/oe.23.022224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A polarization-resolved beam deflection technique is used to separate the bound-electronic and molecular rotational components of nonlinear refractive transients of molecular gases. Coherent rotational revivals from N(2), O(2), and two isotopologues of carbon disulfide (CS(2)), are identified in gaseous mixtures. Dephasing rates, rotational and centrifugal distortion constants of each species are measured. Polarization at the magic angle allows unambiguous measurement of the bound-electronic nonlinear refractive index of air and second hyperpolarizability of CS(2). Agreement between gas and liquid phase second hyperpolarizability measurements is found using the Lorentz-Lorenz local field correction.
Collapse
|
9
|
Ashwell BA, Ramakrishna S, Seideman T. Strong field coherent control of molecular torsions—Analytical models. J Chem Phys 2015; 143:064307. [DOI: 10.1063/1.4927917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Benjamin A. Ashwell
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - S. Ramakrishna
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Tamar Seideman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| |
Collapse
|
10
|
Obaid R, Kinzel D, Oppel M, González L. Discrimination of nuclear spin isomers exploiting the excited state dynamics of a quinodimethane derivative. J Chem Phys 2014; 141:164323. [PMID: 25362315 DOI: 10.1063/1.4899178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Despite the concept of nuclear spin isomers (NSIs) exists since the early days of quantum mechanics, only few approaches have been suggested to separate different NSIs. Here, a method is proposed to discriminate different NSIs of a quinodimethane derivative using its electronic excited state dynamics. After electronic excitation by a laser field with femtosecond time duration, a difference in the behavior of several quantum mechanical operators can be observed. A pump-probe experimental approach for separating these different NSIs is then proposed.
Collapse
Affiliation(s)
- Rana Obaid
- Institut für Theoretische Chemie, Universität Wien, Währinger Str. 17, 1090 Wien, Austria
| | - Daniel Kinzel
- Institut für Theoretische Chemie, Universität Wien, Währinger Str. 17, 1090 Wien, Austria
| | - Markus Oppel
- Institut für Theoretische Chemie, Universität Wien, Währinger Str. 17, 1090 Wien, Austria
| | - Leticia González
- Institut für Theoretische Chemie, Universität Wien, Währinger Str. 17, 1090 Wien, Austria
| |
Collapse
|
11
|
Affiliation(s)
- Mikhail Lemeshko
- a ITAMP, Harvard-Smithsonian Center for Astrophysics , Cambridge , MA , 02138 , USA
- b Physics Department , Harvard University , Cambridge , MA , 02138 , USA
- c Kavli Institute for Theoretical Physics , University of California , Santa Barbara , CA , 93106 , USA
| | - Roman V. Krems
- c Kavli Institute for Theoretical Physics , University of California , Santa Barbara , CA , 93106 , USA
- d Department of Chemistry , University of British Columbia , BC V6T 1Z1, Vancouver , Canada
| | - John M. Doyle
- b Physics Department , Harvard University , Cambridge , MA , 02138 , USA
| | - Sabre Kais
- e Departments of Chemistry and Physics , Purdue University , West Lafayette , IN , 47907 , USA
| |
Collapse
|
12
|
Grohmann T, Manz J, Schild A. Effects of molecular symmetry on the directions of nuclear flux densities during tunnelling in double well potentials. Mol Phys 2013. [DOI: 10.1080/00268976.2013.800599] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Thomas Grohmann
- Institut für Chemie und Biochemie, Freie Universiät Berlin , Berlin, 14195, Germany
| | - Jörn Manz
- Institut für Chemie und Biochemie, Freie Universiät Berlin , Berlin, 14195, Germany
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University , Taiyuan, 030006, China
| | - Axel Schild
- Institut für Chemie und Biochemie, Freie Universiät Berlin , Berlin, 14195, Germany
| |
Collapse
|
13
|
Ashwell BA, Ramakrishna S, Seideman T. Laser-driven torsional coherences. J Chem Phys 2013; 138:044310. [DOI: 10.1063/1.4773009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
14
|
Barth I. Translational Effects on Electronic and Nuclear Ring Currents. J Phys Chem A 2012; 116:11283-303. [DOI: 10.1021/jp305318s] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ingo Barth
- Max-Born-Institut, Max-Born-Strasse 2A, 12489 Berlin, Germany
| |
Collapse
|