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Tunable diffraction-free array in nonlinear photonic crystal

Diffraction-free beams have attracted increasing research interests because of their unique performances and broad applications in various fields. Although many methods have been developed to produce such beams, it is still challenging to realize a tunable non-diffracting beam. Here, we report the g...

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Autores principales: Liu, Dongmei, Wei, Dunzhao, Zhang, Yong, Chen, Zhenhua, Ni, Rui, Yang, Bo, Hu, Xiaopeng, Qin, Y. Q., Zhu, S. N., Xiao, Min
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241656/
https://www.ncbi.nlm.nih.gov/pubmed/28098213
http://dx.doi.org/10.1038/srep40856
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author Liu, Dongmei
Wei, Dunzhao
Zhang, Yong
Chen, Zhenhua
Ni, Rui
Yang, Bo
Hu, Xiaopeng
Qin, Y. Q.
Zhu, S. N.
Xiao, Min
author_facet Liu, Dongmei
Wei, Dunzhao
Zhang, Yong
Chen, Zhenhua
Ni, Rui
Yang, Bo
Hu, Xiaopeng
Qin, Y. Q.
Zhu, S. N.
Xiao, Min
author_sort Liu, Dongmei
collection PubMed
description Diffraction-free beams have attracted increasing research interests because of their unique performances and broad applications in various fields. Although many methods have been developed to produce such beams, it is still challenging to realize a tunable non-diffracting beam. Here, we report the generation of a tunable diffraction-free array through second-harmonic generation in a nonlinear photonic crystal, i.e., a 2D periodically-poled LiTaO(3) crystal. In such a crystal, the second-harmonic wave is engineered by properly designing the domain structure based on the Huygens-Fresnel principle. The characteristics of the generated diffraction-free array including its period, propagation length, and wavelength can be tuned by simply changing the input wavelength. Our observation not only enriches the diffraction-free optics, but also has potential applications for photolithography and imaging.
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spelling pubmed-52416562017-01-23 Tunable diffraction-free array in nonlinear photonic crystal Liu, Dongmei Wei, Dunzhao Zhang, Yong Chen, Zhenhua Ni, Rui Yang, Bo Hu, Xiaopeng Qin, Y. Q. Zhu, S. N. Xiao, Min Sci Rep Article Diffraction-free beams have attracted increasing research interests because of their unique performances and broad applications in various fields. Although many methods have been developed to produce such beams, it is still challenging to realize a tunable non-diffracting beam. Here, we report the generation of a tunable diffraction-free array through second-harmonic generation in a nonlinear photonic crystal, i.e., a 2D periodically-poled LiTaO(3) crystal. In such a crystal, the second-harmonic wave is engineered by properly designing the domain structure based on the Huygens-Fresnel principle. The characteristics of the generated diffraction-free array including its period, propagation length, and wavelength can be tuned by simply changing the input wavelength. Our observation not only enriches the diffraction-free optics, but also has potential applications for photolithography and imaging. Nature Publishing Group 2017-01-18 /pmc/articles/PMC5241656/ /pubmed/28098213 http://dx.doi.org/10.1038/srep40856 Text en Copyright © 2017, The Author(s) 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
Liu, Dongmei
Wei, Dunzhao
Zhang, Yong
Chen, Zhenhua
Ni, Rui
Yang, Bo
Hu, Xiaopeng
Qin, Y. Q.
Zhu, S. N.
Xiao, Min
Tunable diffraction-free array in nonlinear photonic crystal
title Tunable diffraction-free array in nonlinear photonic crystal
title_full Tunable diffraction-free array in nonlinear photonic crystal
title_fullStr Tunable diffraction-free array in nonlinear photonic crystal
title_full_unstemmed Tunable diffraction-free array in nonlinear photonic crystal
title_short Tunable diffraction-free array in nonlinear photonic crystal
title_sort tunable diffraction-free array in nonlinear photonic crystal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241656/
https://www.ncbi.nlm.nih.gov/pubmed/28098213
http://dx.doi.org/10.1038/srep40856
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