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Time Circular Birefringence in Time-Dependent Magnetoelectric Media
Light traveling in time-dependent media has many extraordinary properties which can be utilized to convert frequency, achieve temporal cloaking, and simulate cosmological phenomena. In this paper, we focus on time-dependent axion-type magnetoelectric (ME) media, and prove that light in these media a...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4556965/ https://www.ncbi.nlm.nih.gov/pubmed/26329928 http://dx.doi.org/10.1038/srep13673 |
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author | Zhang, Ruo-Yang Zhai, Yan-Wang Lin, Shi-Rong Zhao, Qing Wen, Weijia Ge, Mo-Lin |
author_facet | Zhang, Ruo-Yang Zhai, Yan-Wang Lin, Shi-Rong Zhao, Qing Wen, Weijia Ge, Mo-Lin |
author_sort | Zhang, Ruo-Yang |
collection | PubMed |
description | Light traveling in time-dependent media has many extraordinary properties which can be utilized to convert frequency, achieve temporal cloaking, and simulate cosmological phenomena. In this paper, we focus on time-dependent axion-type magnetoelectric (ME) media, and prove that light in these media always has two degenerate modes with opposite circular polarizations corresponding to one wave vector [Image: see text], and name this effect “time circular birefringence” (TCB). By interchanging the status of space and time, the pair of TCB modes can appear simultaneously via “time refraction” and “time reflection” of a linear polarized incident wave at a time interface of ME media. The superposition of the two TCB modes causes the “time Faraday effect”, namely the globally unified polarization axes rotate with time. A circularly polarized Gaussian pulse traversing a time interface is also studied. If the wave-vector spectrum of a pulse mainly concentrates in the non-traveling-wave band, the pulse will be trapped with nearly fixed center while its intensity will grow rapidly. In addition, we propose an experimental scheme of using molecular fluid with external time-varying electric and magnetic fields both parallel to the direction of light to realize these phenomena in practice. |
format | Online Article Text |
id | pubmed-4556965 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45569652015-09-11 Time Circular Birefringence in Time-Dependent Magnetoelectric Media Zhang, Ruo-Yang Zhai, Yan-Wang Lin, Shi-Rong Zhao, Qing Wen, Weijia Ge, Mo-Lin Sci Rep Article Light traveling in time-dependent media has many extraordinary properties which can be utilized to convert frequency, achieve temporal cloaking, and simulate cosmological phenomena. In this paper, we focus on time-dependent axion-type magnetoelectric (ME) media, and prove that light in these media always has two degenerate modes with opposite circular polarizations corresponding to one wave vector [Image: see text], and name this effect “time circular birefringence” (TCB). By interchanging the status of space and time, the pair of TCB modes can appear simultaneously via “time refraction” and “time reflection” of a linear polarized incident wave at a time interface of ME media. The superposition of the two TCB modes causes the “time Faraday effect”, namely the globally unified polarization axes rotate with time. A circularly polarized Gaussian pulse traversing a time interface is also studied. If the wave-vector spectrum of a pulse mainly concentrates in the non-traveling-wave band, the pulse will be trapped with nearly fixed center while its intensity will grow rapidly. In addition, we propose an experimental scheme of using molecular fluid with external time-varying electric and magnetic fields both parallel to the direction of light to realize these phenomena in practice. Nature Publishing Group 2015-09-02 /pmc/articles/PMC4556965/ /pubmed/26329928 http://dx.doi.org/10.1038/srep13673 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Zhang, Ruo-Yang Zhai, Yan-Wang Lin, Shi-Rong Zhao, Qing Wen, Weijia Ge, Mo-Lin Time Circular Birefringence in Time-Dependent Magnetoelectric Media |
title | Time Circular Birefringence in Time-Dependent Magnetoelectric Media |
title_full | Time Circular Birefringence in Time-Dependent Magnetoelectric Media |
title_fullStr | Time Circular Birefringence in Time-Dependent Magnetoelectric Media |
title_full_unstemmed | Time Circular Birefringence in Time-Dependent Magnetoelectric Media |
title_short | Time Circular Birefringence in Time-Dependent Magnetoelectric Media |
title_sort | time circular birefringence in time-dependent magnetoelectric media |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4556965/ https://www.ncbi.nlm.nih.gov/pubmed/26329928 http://dx.doi.org/10.1038/srep13673 |
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