Observation of the Zero Doppler Effect

The normal Doppler effect has well-established applications in many areas of science and technology. Recently, a few experimental demonstrations of the inverse Doppler effect have begun to appear in negative-index metamaterials. Here we report an experimental observation of the zero Doppler effect,...

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Autores principales: Ran, Jia, Zhang, Yewen, Chen, Xiaodong, Fang, Kai, Zhao, Junfei, Chen, Hong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4820719/
https://www.ncbi.nlm.nih.gov/pubmed/27046395
http://dx.doi.org/10.1038/srep23973
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author Ran, Jia
Zhang, Yewen
Chen, Xiaodong
Fang, Kai
Zhao, Junfei
Chen, Hong
author_facet Ran, Jia
Zhang, Yewen
Chen, Xiaodong
Fang, Kai
Zhao, Junfei
Chen, Hong
author_sort Ran, Jia
collection PubMed
description The normal Doppler effect has well-established applications in many areas of science and technology. Recently, a few experimental demonstrations of the inverse Doppler effect have begun to appear in negative-index metamaterials. Here we report an experimental observation of the zero Doppler effect, that is, no frequency shift irrespective of the relative motion between the wave signal source and the detector in a zero-index metamaterial. This unique phenomenon, accompanied by the normal and inverse Doppler effects, is generated by reflecting a wave from a moving discontinuity in a composite right/left-handed transmission line loaded with varactors when operating in the near zero-index passband, or the right/left-handed passband. This work has revealed a complete picture of the Doppler effect in metamaterials and may lead to potential applications in electromagnetic wave related metrology.
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spelling pubmed-48207192016-04-06 Observation of the Zero Doppler Effect Ran, Jia Zhang, Yewen Chen, Xiaodong Fang, Kai Zhao, Junfei Chen, Hong Sci Rep Article The normal Doppler effect has well-established applications in many areas of science and technology. Recently, a few experimental demonstrations of the inverse Doppler effect have begun to appear in negative-index metamaterials. Here we report an experimental observation of the zero Doppler effect, that is, no frequency shift irrespective of the relative motion between the wave signal source and the detector in a zero-index metamaterial. This unique phenomenon, accompanied by the normal and inverse Doppler effects, is generated by reflecting a wave from a moving discontinuity in a composite right/left-handed transmission line loaded with varactors when operating in the near zero-index passband, or the right/left-handed passband. This work has revealed a complete picture of the Doppler effect in metamaterials and may lead to potential applications in electromagnetic wave related metrology. Nature Publishing Group 2016-04-05 /pmc/articles/PMC4820719/ /pubmed/27046395 http://dx.doi.org/10.1038/srep23973 Text en Copyright © 2016, 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
Ran, Jia
Zhang, Yewen
Chen, Xiaodong
Fang, Kai
Zhao, Junfei
Chen, Hong
Observation of the Zero Doppler Effect
title Observation of the Zero Doppler Effect
title_full Observation of the Zero Doppler Effect
title_fullStr Observation of the Zero Doppler Effect
title_full_unstemmed Observation of the Zero Doppler Effect
title_short Observation of the Zero Doppler Effect
title_sort observation of the zero doppler effect
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4820719/
https://www.ncbi.nlm.nih.gov/pubmed/27046395
http://dx.doi.org/10.1038/srep23973
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AT fangkai observationofthezerodopplereffect
AT zhaojunfei observationofthezerodopplereffect
AT chenhong observationofthezerodopplereffect

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