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

Abstract 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...

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Autores principales:	Xiaohui Zhao, Yuanlin Zheng, Ning An, Huaijin Ren, Xuewei Deng, Xianfeng Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1d963f45e8774be8bac34d0e3d7bdc6d
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spelling	oai:doaj.org-article:1d963f45e8774be8bac34d0e3d7bdc6d2021-12-02T15:05:30ZEnhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities10.1038/s41598-018-25041-32045-2322https://doaj.org/article/1d963f45e8774be8bac34d0e3d7bdc6d2018-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25041-3https://doaj.org/toc/2045-2322Abstract 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.Xiaohui ZhaoYuanlin ZhengNing AnHuaijin RenXuewei DengXianfeng ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-6 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaohui Zhao Yuanlin Zheng Ning An Huaijin Ren Xuewei Deng Xianfeng Chen Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
description	Abstract 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.
format	article
author	Xiaohui Zhao Yuanlin Zheng Ning An Huaijin Ren Xuewei Deng Xianfeng Chen
author_facet	Xiaohui Zhao Yuanlin Zheng Ning An Huaijin Ren Xuewei Deng Xianfeng Chen
author_sort	Xiaohui Zhao
title	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_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_sort	enhancement of uv second-harmonic radiation at nonlinear interfaces with discontinuous second-order susceptibilities
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/1d963f45e8774be8bac34d0e3d7bdc6d
work_keys_str_mv	AT xiaohuizhao enhancementofuvsecondharmonicradiationatnonlinearinterfaceswithdiscontinuoussecondordersusceptibilities AT yuanlinzheng enhancementofuvsecondharmonicradiationatnonlinearinterfaceswithdiscontinuoussecondordersusceptibilities AT ningan enhancementofuvsecondharmonicradiationatnonlinearinterfaceswithdiscontinuoussecondordersusceptibilities AT huaijinren enhancementofuvsecondharmonicradiationatnonlinearinterfaceswithdiscontinuoussecondordersusceptibilities AT xueweideng enhancementofuvsecondharmonicradiationatnonlinearinterfaceswithdiscontinuoussecondordersusceptibilities AT xianfengchen enhancementofuvsecondharmonicradiationatnonlinearinterfaceswithdiscontinuoussecondordersusceptibilities
_version_	1718388816252764160

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

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