Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities

We investigate the generation of ultraviolet (UV) second-harmonic radiation at the boundary of a UV transparent crystal, which is derived from the automatic partial phase matching of the incident wave and the total internal reflection. By adhering to another UV non-transparent crystal with a larger...

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Autores principales: Zhao, Xiaohui, Zheng, Yuanlin, An, Ning, Ren, Huaijin, Deng, Xuewei, Chen, Xianfeng
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/PMC5924382/
https://www.ncbi.nlm.nih.gov/pubmed/29703957
http://dx.doi.org/10.1038/s41598-018-25041-3
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author Zhao, Xiaohui
Zheng, Yuanlin
An, Ning
Ren, Huaijin
Deng, Xuewei
Chen, Xianfeng
author_facet Zhao, Xiaohui
Zheng, Yuanlin
An, Ning
Ren, Huaijin
Deng, Xuewei
Chen, Xianfeng
author_sort Zhao, Xiaohui
collection PubMed
description We investigate the generation of ultraviolet (UV) second-harmonic radiation at the boundary of a UV transparent crystal, which is derived from the automatic partial phase matching of the incident wave and the total internal reflection. By adhering to another UV non-transparent crystal with a larger second-order nonlinear coefficient χ((2)), a nonlinear interface with large disparity in χ((2)) is formed and the enhancement of UV second-harmonic radiation is observed experimentally. The intensity of enhanced second harmonic wave generated at the nonlinear interface is up to 11.6 times that at the crystal boundary. As a tunable phase-matching method, it may suggest potential applications in the UV, and even vacuum-UV region.
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spelling pubmed-59243822018-05-01 Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities Zhao, Xiaohui Zheng, Yuanlin An, Ning Ren, Huaijin Deng, Xuewei Chen, Xianfeng Sci Rep Article We investigate the generation of ultraviolet (UV) second-harmonic radiation at the boundary of a UV transparent crystal, which is derived from the automatic partial phase matching of the incident wave and the total internal reflection. By adhering to another UV non-transparent crystal with a larger second-order nonlinear coefficient χ((2)), a nonlinear interface with large disparity in χ((2)) is formed and the enhancement of UV second-harmonic radiation is observed experimentally. The intensity of enhanced second harmonic wave generated at the nonlinear interface is up to 11.6 times that at the crystal boundary. As a tunable phase-matching method, it may suggest potential applications in the UV, and even vacuum-UV region. Nature Publishing Group UK 2018-04-27 /pmc/articles/PMC5924382/ /pubmed/29703957 http://dx.doi.org/10.1038/s41598-018-25041-3 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
Zhao, Xiaohui
Zheng, Yuanlin
An, Ning
Ren, Huaijin
Deng, Xuewei
Chen, Xianfeng
Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
title Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
title_full Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
title_fullStr Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
title_full_unstemmed Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
title_short Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
title_sort enhancement of uv second-harmonic radiation at nonlinear interfaces with discontinuous second-order susceptibilities
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5924382/
https://www.ncbi.nlm.nih.gov/pubmed/29703957
http://dx.doi.org/10.1038/s41598-018-25041-3
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