Broadband infrared light source by simultaneous parametric down-conversion

Abstract Spontaneous parametric down-conversion is an essential tool for a quantum light source in the infrared region ranging 2–5 µm for the purpose of material identification, chemical analysis, and gas sensing. So far, photon pairs from the process in a nonlinear crystal have low tunability and a...

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Autores principales:	Masayuki Hojo, Koichiro Tanaka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ff026fa844a148d8b8ef1745469b9b92
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spelling	oai:doaj.org-article:ff026fa844a148d8b8ef1745469b9b922021-12-02T17:41:12ZBroadband infrared light source by simultaneous parametric down-conversion10.1038/s41598-021-97531-w2045-2322https://doaj.org/article/ff026fa844a148d8b8ef1745469b9b922021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97531-whttps://doaj.org/toc/2045-2322Abstract Spontaneous parametric down-conversion is an essential tool for a quantum light source in the infrared region ranging 2–5 µm for the purpose of material identification, chemical analysis, and gas sensing. So far, photon pairs from the process in a nonlinear crystal have low tunability and a narrow spectral range because of the phase-matching condition. Here, we propose a novel type of spontaneous parametric down-conversion processes that overcomes these challenges, where two photon pairs are simultaneously produced in the visible and infrared regions in periodically poled stoichiometric lithium tantalite. It allows broadband and tunable generation of infrared photon pairs that can be employed as an alternative light source for quantum infrared spectroscopy.Masayuki HojoKoichiro TanakaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Masayuki Hojo Koichiro Tanaka Broadband infrared light source by simultaneous parametric down-conversion
description	Abstract Spontaneous parametric down-conversion is an essential tool for a quantum light source in the infrared region ranging 2–5 µm for the purpose of material identification, chemical analysis, and gas sensing. So far, photon pairs from the process in a nonlinear crystal have low tunability and a narrow spectral range because of the phase-matching condition. Here, we propose a novel type of spontaneous parametric down-conversion processes that overcomes these challenges, where two photon pairs are simultaneously produced in the visible and infrared regions in periodically poled stoichiometric lithium tantalite. It allows broadband and tunable generation of infrared photon pairs that can be employed as an alternative light source for quantum infrared spectroscopy.
format	article
author	Masayuki Hojo Koichiro Tanaka
author_facet	Masayuki Hojo Koichiro Tanaka
author_sort	Masayuki Hojo
title	Broadband infrared light source by simultaneous parametric down-conversion
title_short	Broadband infrared light source by simultaneous parametric down-conversion
title_full	Broadband infrared light source by simultaneous parametric down-conversion
title_fullStr	Broadband infrared light source by simultaneous parametric down-conversion
title_full_unstemmed	Broadband infrared light source by simultaneous parametric down-conversion
title_sort	broadband infrared light source by simultaneous parametric down-conversion
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ff026fa844a148d8b8ef1745469b9b92
work_keys_str_mv	AT masayukihojo broadbandinfraredlightsourcebysimultaneousparametricdownconversion AT koichirotanaka broadbandinfraredlightsourcebysimultaneousparametricdownconversion
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Broadband infrared light source by simultaneous parametric down-conversion

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