Numerical Analysis of Artificial Optical Activities of Planar Chiral Nano-Gratings
Summary :
We analyzed polarization characteristics of gammadion-shaped planar chiral nano-gratings (PCNGs), using Jones matrix and FDTD simulation. Optical activity (OA) was found to take place at wavelengths where long-lifetime modes appeared in the chiral layer. Among two kinds of resonance phenomena that concern the extension of the lifetime, guided-mode resonance and Fabry-Perot resonance, the latter was found to be a key to generate practically-important, broad peaks in the OA spectrum. Through the calculation of dispersion relations of Bloch modes in the chiral layer, we showed that the interference of multiple modes with group velocity dispersion played a critical role in the generation of such long-lifetime modes.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E97-C No.1 pp.33-39
- Publication Date
- 2014/01/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E97.C.33
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
- Category
- Periodic Structures
Authors
Yasuo OHTERA
Tohoku University
Keyword
Latest Issue
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Yasuo OHTERA, "Numerical Analysis of Artificial Optical Activities of Planar Chiral Nano-Gratings" in IEICE TRANSACTIONS on Electronics,
vol. E97-C, no. 1, pp. 33-39, January 2014, doi: 10.1587/transele.E97.C.33.
Abstract: We analyzed polarization characteristics of gammadion-shaped planar chiral nano-gratings (PCNGs), using Jones matrix and FDTD simulation. Optical activity (OA) was found to take place at wavelengths where long-lifetime modes appeared in the chiral layer. Among two kinds of resonance phenomena that concern the extension of the lifetime, guided-mode resonance and Fabry-Perot resonance, the latter was found to be a key to generate practically-important, broad peaks in the OA spectrum. Through the calculation of dispersion relations of Bloch modes in the chiral layer, we showed that the interference of multiple modes with group velocity dispersion played a critical role in the generation of such long-lifetime modes.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E97.C.33/_p
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@ARTICLE{e97-c_1_33,
author={Yasuo OHTERA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Numerical Analysis of Artificial Optical Activities of Planar Chiral Nano-Gratings},
year={2014},
volume={E97-C},
number={1},
pages={33-39},
abstract={We analyzed polarization characteristics of gammadion-shaped planar chiral nano-gratings (PCNGs), using Jones matrix and FDTD simulation. Optical activity (OA) was found to take place at wavelengths where long-lifetime modes appeared in the chiral layer. Among two kinds of resonance phenomena that concern the extension of the lifetime, guided-mode resonance and Fabry-Perot resonance, the latter was found to be a key to generate practically-important, broad peaks in the OA spectrum. Through the calculation of dispersion relations of Bloch modes in the chiral layer, we showed that the interference of multiple modes with group velocity dispersion played a critical role in the generation of such long-lifetime modes.},
keywords={},
doi={10.1587/transele.E97.C.33},
ISSN={1745-1353},
month={January},}
Copy
TY - JOUR
TI - Numerical Analysis of Artificial Optical Activities of Planar Chiral Nano-Gratings
T2 - IEICE TRANSACTIONS on Electronics
SP - 33
EP - 39
AU - Yasuo OHTERA
PY - 2014
DO - 10.1587/transele.E97.C.33
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E97-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2014
AB - We analyzed polarization characteristics of gammadion-shaped planar chiral nano-gratings (PCNGs), using Jones matrix and FDTD simulation. Optical activity (OA) was found to take place at wavelengths where long-lifetime modes appeared in the chiral layer. Among two kinds of resonance phenomena that concern the extension of the lifetime, guided-mode resonance and Fabry-Perot resonance, the latter was found to be a key to generate practically-important, broad peaks in the OA spectrum. Through the calculation of dispersion relations of Bloch modes in the chiral layer, we showed that the interference of multiple modes with group velocity dispersion played a critical role in the generation of such long-lifetime modes.
ER -
English
