Controlled Fano resonances via symmetry breaking in metamaterials for high-sensitive infrared spectroscopy

2016 ◽  
Author(s):  
Shuhei Hara ◽  
Atsushi Ishikawa ◽  
Takuo Tanaka ◽  
Yasuhiko Hayashi ◽  
Kenji Tsuruta
Keyword(s):  
Infrared Spectroscopy ◽  
Symmetry Breaking ◽  
Fano Resonances

Local symmetry breaking inK2V3O8as studied by infrared spectroscopy

2001 ◽  
Vol 65 (5) ◽  
Author(s):  
J. Choi ◽  
Z. T. Zhu ◽  
J. L. Musfeldt ◽  
G. Ragghianti ◽  
D. Mandrus ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Symmetry Breaking ◽  
Local Symmetry

Sub-Doppler infrared spectroscopy of CH2D radical in a slit supersonic jet: Isotopic symmetry breaking in the CH stretching manifold

2012 ◽  
Vol 136 (23) ◽  
pp. 234308 ◽  
Author(s):  
Melanie A. Roberts ◽  
Chandra Savage ◽  
Feng Dong ◽  
Erin N. Sharp-Williams ◽  
Anne B. McCoy ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Symmetry Breaking ◽  
Supersonic Jet

scholarly journals The interplay between Fano and Fabry–Pérot resonances in dual-period metagratings

2021 ◽  
Vol 477 (2255) ◽  
Author(s):  
Joar Zhou Hagström ◽  
Agnès Maurel ◽  
Kim Pham
Keyword(s):  
Symmetry Breaking ◽  
Low Frequency ◽  
Evanescent Field ◽  
Homogenization Theory ◽  
Local Analysis ◽  
Jump Conditions ◽  
Fano Resonances ◽  
Fabry Perot ◽  
Plasmon Polaritons ◽  
Effective Problem

We study theoretically and numerically the occurrence of Fano resonances in a metagrating made of slits with some symmetry breaking resulting in a dual period. At low frequency, a grating composed of long enough slits supports Fabry–Pérot resonances on which Fano resonances superimpose when the grating acquires dual period. The resulting spectrum exhibits flat-banded peaks interrupted by sharp dips with successions of perfect and zero transmissions. To model these scattering properties, homogenization theory is used resulting in an effective problem governing the solutions in the two, non-identical, slits, which are coupled through jump conditions at the grating interfaces. These jumps efficiently encode the effect of the evanescent field able to resonate in the radiative region due to the folding of the spoof plasmon polaritons branches. The model is validated with direct numerics and a local analysis allows us to characterize the resonant mechanisms.

scholarly journals Symmetry breaking with coupled Fano resonances

2008 ◽  
Vol 16 (5) ◽  
pp. 3069 ◽  
Author(s):  
Björn Maes ◽  
Peter Bienstman ◽  
Roel Baets
Keyword(s):  
Symmetry Breaking ◽  
Fano Resonances

scholarly journals Direct Visualization of Excited-State Symmetry Breaking Using Ultrafast Time-Resolved Infrared Spectroscopy

2016 ◽  
Vol 138 (13) ◽  
pp. 4643-4649 ◽  
Author(s):  
Bogdan Dereka ◽  
Arnulf Rosspeintner ◽  
Zhiquan Li ◽  
Robert Liska ◽  
Eric Vauthey
Keyword(s):  
Infrared Spectroscopy ◽  
Excited State ◽  
Symmetry Breaking ◽  
Direct Visualization ◽  
Time Resolved ◽  
Time Resolved Infrared Spectroscopy
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