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Pathania P, Shishodia MS. Fano Resonance-Based Blood Plasma Monitoring and Sensing using Plasmonic Nanomatryoshka. PLASMONICS (NORWELL, MASS.) 2021; 16:2117-2124. [PMID: 34131417 PMCID: PMC8192045 DOI: 10.1007/s11468-020-01343-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
The fast label-free detection of specific antibodies and their concentration in blood plasma is useful for many applications, e.g., in Covid-19 patients. The change in biophysical properties like the refractive index of blood plasma due to the production of antibodies during infection may be very helpful in estimating the level and intensity of infection and subsequent treatment based on blood plasma therapy. In this article, Fano resonance-based refractive index sensor using plasmonic nanomatryoshka is proposed for blood plasma sensing. The interaction between hybridized modes (bright and dark modes) in optimized nanomatryoshka leads to Fano resonance, which by virtue of steeper dispersion can confine the light more efficiently compared with Lorentzian resonance. We propose the excitation of Fano resonances in sub 100-nm size nanomatryoshka based on newly emerging plasmonic materials ZrN and HfN, and one of the most widely used conventional plasmonic material, Au. Fano resonance-based plasmonic sensors leads to sensitivity = 188.5 nm/RIU, 242.5 nm/RIU, and 244.9 nm/RIU for Au, ZrN, and HfN, respectively. The corresponding figure of merit (nm/RIU) is ~ 3.5 × 103, 3.1 × 103, and 2.8 × 103 for Au, ZrN, and HfN, respectively. Present theoretical analysis shows that refractive index sensors with high sensitivity and figure of merit are feasible using Fano modes of plasmonic nanomatryoshka.
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Affiliation(s)
- Pankaj Pathania
- Department of Applied Physics, Gautam Buddha University, 201312 Greater Noida, India
- Galogotias College of Engineering and Technology, 201312 Greater Noida, India
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Chen Z, Zhang S, Chen Y, Liu Y, Li P, Wang Z, Zhu X, Bi K, Duan H. Double Fano resonances in hybrid disk/rod artificial plasmonic molecules based on dipole-quadrupole coupling. NANOSCALE 2020; 12:9776-9785. [PMID: 32324182 DOI: 10.1039/d0nr00461h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Fano resonance can be achieved by the destructive interference between a superradiant bright mode and a subradiant dark mode. A variety of artificial plasmonic oligomers have been fabricated to generate Fano resonance for its extensive applications. However, the Fano resonance in plasmonic oligomer systems comes from the interaction of all metal particles, which greatly limits the tunability of the Fano resonance. Besides, only a single Fano resonance is supported by many existing plasmonic oligomers, while multiple Fano resonances mostly occur in complex and multilayer structures, whose fabrication is greatly challenging. Here, a simple asymmetric plasmonic molecule consisting of a central metal disk and two side-coupled parallel metal rods is demonstrated. The simulation and experimental results clearly show that double Fano resonances appear in the transmission spectrum. In addition, the two Fano peaks can be independently tuned and single/double Fano peak switching can be achieved by changing one rod length or the gap distances between the rods and the disk. The modulation method is simple and effective, which greatly increases the tunability of the structure. The proposed asymmetric artificial plasmonic molecule can have applications in multi-channel optical switches, filters and biosensors. Moreover, the controllable plasmonic field intensity in the gap between the disk and rods also provides a new control means for plasmon-induced photocatalytic reactions and biosynthesis.
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Affiliation(s)
- Zhiquan Chen
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China. and School of Mathematics and Statistics, Hunan University of Technology and Business, Changsha 410205, People's Republic of China
| | - Shi Zhang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Yiqin Chen
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Yanjun Liu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055, People's Republic of China
| | - Ping Li
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Zhaolong Wang
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Xupeng Zhu
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
| | - Kaixi Bi
- Science and Technology on Electronic Test and Measurement Laboratory, School of Instrument and Electronics, North University of China, Taiyuan 030051, People's Republic of China
| | - Huigao Duan
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People's Republic of China.
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Singh K, Panchenko E, Nasr B, Liu A, Wesemann L, Davis TJ, Roberts A. Cathodoluminescence as a probe of the optical properties of resonant apertures in a metallic film. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:1491-1500. [PMID: 29977682 PMCID: PMC6009612 DOI: 10.3762/bjnano.9.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/06/2018] [Indexed: 05/10/2023]
Abstract
Here we present the results of an investigation of resonances of azimuthal trimer arrangements of rectangular slots in a gold film on a glass substrate using cathodoluminescence (CL) as a probe. The variation in the CL signal collected from specific locations on the sample as a function of wavelength and the spatial dependence of emission into different wavelength bands provides considerable insight into the resonant modes, particularly sub-radiant modes, of these apertures. By comparing our experimental results with electromagnetic simulations we are able to identify a Fabry-Pérot mode of these cavities as well as resonances associated with the excitation of surface plasmon polaritons on the air-gold boundary. We obtain evidence for the excitation of dark (also known as sub-radiant) modes of apertures and aperture ensembles.
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Affiliation(s)
- Kalpana Singh
- School of Physics, University of Melbourne, VIC 3010, Australia
| | | | - Babak Nasr
- Centre for Neural Engineering, The University of Melbourne, VIC 3010, Australia
- Department of Electrical and Electronic Engineering, The University of Melbourne, VIC 3010, Australia
- Australian Research Council Centre of Excellence for Integrative Brain Function, The University of Melbourne, VIC 3010, Australia
| | - Amelia Liu
- Monash Centre for Electron Microscopy and School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia
| | - Lukas Wesemann
- School of Physics, University of Melbourne, VIC 3010, Australia
| | - Timothy J Davis
- School of Physics, University of Melbourne, VIC 3010, Australia
| | - Ann Roberts
- School of Physics, University of Melbourne, VIC 3010, Australia
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Li S, Zhang Y, Song X, Wang Y, Yu L. Tunable triple Fano resonances based on multimode interference in coupled plasmonic resonator system. OPTICS EXPRESS 2016; 24:15351-15361. [PMID: 27410811 DOI: 10.1364/oe.24.015351] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this paper, an asymmetric plasmonic structure composed of two MIM (metal-insulator-metal) waveguides and two rectangular cavities is reported, which can support triple Fano resonances originating from three different mechanisms. And the multimode interference coupled mode theory (MICMT) including coupling phases is proposed based on single mode coupled mode theory (CMT), which is used for describing and explaining the multiple Fano resonance phenomenon in coupled plasmonic resonator systems. Just because the triple Fano resonances originate from three different mechanisms, each Fano resonance can be tuned independently or semi-independently by changing the parameters of the two rectangular cavities. Such, a narrow 'M' type of double Lorentzian-like line-shape transmission windows with the position and the full width at half maximum (FWHM) can be tuned freely is constructed by changing the parameters of the two cavities appropriately, which can find widely applications in sensors, nonlinear and slow-light devices.
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Qi L. Broadband and Polarization Independent Terahertz Metamaterial Filters Using Metal-Dielectric-Metal Complementary Ring Structure. ACTA ACUST UNITED AC 2016. [DOI: 10.3807/josk.2016.20.2.263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Song M, Yu H, Wang C, Yao N, Pu M, Luo J, Zhang Z, Luo X. Sharp Fano resonance induced by a single layer of nanorods with perturbed periodicity. OPTICS EXPRESS 2015; 23:2895-2903. [PMID: 25836151 DOI: 10.1364/oe.23.002895] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, we report the formation of extremely sharp (Quality factor Q~ + ∞) FR in a single layer of dielectric nanorods with perturbed periodicity. The interference between the broadband Fabry-Perot (F-P) resonance and defect induced dark mode results in refractive index sensitivity (S) of 1312.75 nm/RIU and figure of merit (FOM) of 500, offering an excellent platform for biological sensing and detection.
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Shu J, Gao W, Reichel K, Nickel D, Dominguez J, Brener I, Mittleman DM, Xu Q. High-Q terahertz Fano resonance with extraordinary transmission in concentric ring apertures. OPTICS EXPRESS 2014; 22:3747-3753. [PMID: 24663692 DOI: 10.1364/oe.22.003747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We experimentally demonstrate a polarization-independent terahertz Fano resonance with extraordinary transmission when light passes through two concentric subwavelength ring apertures in the metal film. The Fano resonance is enabled by the coupling between a high-Q dark mode and a low-Q bright mode. We find the Q factor of the dark mode ranges from 23 to 40, which is 3~6 times higher than Q of bright mode. We show the Fano resonance can be tuned by varying the geometry and dimension of the structures. We also demonstrate a polarization dependent Fano resonance in a modified structure of concentric ring apertures.
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