Dual Doppler Effect in Wedge-Type Photonic Crystals

The dual Doppler effect, in the simultaneous occurrence of both normal and inverse Doppler effect in one moving two-dimensional wedge-type photonic crystal, is proposed. An improved finite-different time-domain algorithm is used to verify this phenomenon. The spatial Fourier Transformation has been...

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Autores principales: Jiang, Qiang, Chen, Jiabi, Cao, Liangcai, Zhuang, Songlin, Jin, Guofan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5916909/
https://www.ncbi.nlm.nih.gov/pubmed/29695798
http://dx.doi.org/10.1038/s41598-018-24941-8
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author Jiang, Qiang
Chen, Jiabi
Cao, Liangcai
Zhuang, Songlin
Jin, Guofan
author_facet Jiang, Qiang
Chen, Jiabi
Cao, Liangcai
Zhuang, Songlin
Jin, Guofan
author_sort Jiang, Qiang
collection PubMed
description The dual Doppler effect, in the simultaneous occurrence of both normal and inverse Doppler effect in one moving two-dimensional wedge-type photonic crystal, is proposed. An improved finite-different time-domain algorithm is used to verify this phenomenon. The spatial Fourier Transformation has been applied to complex electrical field data to reveal the mechanism. The harmonics with negative spatial frequencies show a lagging phase evolution, while those with positive spatial frequencies show a front phase evolution. Different wedge-type photonic crystals are designed to filter out the required harmonics based on the systematic study of spatial Fourier Transformation and wave vector diagram. Our work paves a new way for Doppler cooling of atomic gases, radar deception, invisibility cloaks, microstructure dual frequency interferometer and so on.
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spelling pubmed-59169092018-04-30 Dual Doppler Effect in Wedge-Type Photonic Crystals Jiang, Qiang Chen, Jiabi Cao, Liangcai Zhuang, Songlin Jin, Guofan Sci Rep Article The dual Doppler effect, in the simultaneous occurrence of both normal and inverse Doppler effect in one moving two-dimensional wedge-type photonic crystal, is proposed. An improved finite-different time-domain algorithm is used to verify this phenomenon. The spatial Fourier Transformation has been applied to complex electrical field data to reveal the mechanism. The harmonics with negative spatial frequencies show a lagging phase evolution, while those with positive spatial frequencies show a front phase evolution. Different wedge-type photonic crystals are designed to filter out the required harmonics based on the systematic study of spatial Fourier Transformation and wave vector diagram. Our work paves a new way for Doppler cooling of atomic gases, radar deception, invisibility cloaks, microstructure dual frequency interferometer and so on. Nature Publishing Group UK 2018-04-25 /pmc/articles/PMC5916909/ /pubmed/29695798 http://dx.doi.org/10.1038/s41598-018-24941-8 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jiang, Qiang
Chen, Jiabi
Cao, Liangcai
Zhuang, Songlin
Jin, Guofan
Dual Doppler Effect in Wedge-Type Photonic Crystals
title Dual Doppler Effect in Wedge-Type Photonic Crystals
title_full Dual Doppler Effect in Wedge-Type Photonic Crystals
title_fullStr Dual Doppler Effect in Wedge-Type Photonic Crystals
title_full_unstemmed Dual Doppler Effect in Wedge-Type Photonic Crystals
title_short Dual Doppler Effect in Wedge-Type Photonic Crystals
title_sort dual doppler effect in wedge-type photonic crystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5916909/
https://www.ncbi.nlm.nih.gov/pubmed/29695798
http://dx.doi.org/10.1038/s41598-018-24941-8
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AT caoliangcai dualdopplereffectinwedgetypephotoniccrystals
AT zhuangsonglin dualdopplereffectinwedgetypephotoniccrystals
AT jinguofan dualdopplereffectinwedgetypephotoniccrystals

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