Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell
The intrinsic optical bistability of the nonlinear composite consisting of coated cylinders with nonlinear core and graded Drude shell is investigated with self-consistent mean-field approximation. We derive the nonlinear equation of near field for such graded composite in the quasistatic limit. We...
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2020-01-01
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doaj-19aec1e67b8f42b28ece8361443af2142021-04-02T16:20:25ZengEDP SciencesEPJ Applied Metamaterials2272-23942020-01-017610.1051/epjam/2020006epjam200005Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shellWu Ya M.Chen Guo Q.Wu Wen C.Wang Yi X.Huang Yanghttps://orcid.org/0000-0001-7234-9584The intrinsic optical bistability of the nonlinear composite consisting of coated cylinders with nonlinear core and graded Drude shell is investigated with self-consistent mean-field approximation. We derive the nonlinear equation of near field for such graded composite in the quasistatic limit. We demonstrate that the bistability threshold and the bistable width are highly dependent on the core radius, the incident frequency, and the graded coefficient of the coated cylinder inclusion. It is found that the optical bistability appears only when the core radius and the incident frequency satisfy some specific conditions. Therefore, the optical bistability for nonlinear composite materials may be optimized by the suitable adjustment of the physical and geometrical parameters. Our results may be helpful for the design of the nonlinear device with appropriate bistability.https://epjam.edp-open.org/articles/epjam/full_html/2020/01/epjam200005/epjam200005.htmloptical bistabilitycylindricalgraded particlecomposite medium |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wu Ya M. Chen Guo Q. Wu Wen C. Wang Yi X. Huang Yang |
spellingShingle |
Wu Ya M. Chen Guo Q. Wu Wen C. Wang Yi X. Huang Yang Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell EPJ Applied Metamaterials optical bistability cylindrical graded particle composite medium |
author_facet |
Wu Ya M. Chen Guo Q. Wu Wen C. Wang Yi X. Huang Yang |
author_sort |
Wu Ya M. |
title |
Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell |
title_short |
Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell |
title_full |
Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell |
title_fullStr |
Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell |
title_full_unstemmed |
Optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell |
title_sort |
optical bistability in two-dimensional nonlinear composites of coated cylinders with nonlinear core and graded shell |
publisher |
EDP Sciences |
series |
EPJ Applied Metamaterials |
issn |
2272-2394 |
publishDate |
2020-01-01 |
description |
The intrinsic optical bistability of the nonlinear composite consisting of coated cylinders with nonlinear core and graded Drude shell is investigated with self-consistent mean-field approximation. We derive the nonlinear equation of near field for such graded composite in the quasistatic limit. We demonstrate that the bistability threshold and the bistable width are highly dependent on the core radius, the incident frequency, and the graded coefficient of the coated cylinder inclusion. It is found that the optical bistability appears only when the core radius and the incident frequency satisfy some specific conditions. Therefore, the optical bistability for nonlinear composite materials may be optimized by the suitable adjustment of the physical and geometrical parameters. Our results may be helpful for the design of the nonlinear device with appropriate bistability. |
topic |
optical bistability cylindrical graded particle composite medium |
url |
https://epjam.edp-open.org/articles/epjam/full_html/2020/01/epjam200005/epjam200005.html |
work_keys_str_mv |
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1721556862735745024 |