Surface related laser induced white emission of Cr:YAG ceramic

Abstract In this work we report the white light emission in transparent Cr:YAG ceramic pellet upon irradiation with focused beam of CW infrared laser diode. It was found that this phenomenon is specifically related to interaction of laser beam with a surface of the pellet. The white light was emitte...

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Autores principales:	M. Chaika, R. Tomala, W. Strek
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4115070315934de18edccf7a762b1c37
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spelling	oai:doaj.org-article:4115070315934de18edccf7a762b1c372021-12-02T15:23:16ZSurface related laser induced white emission of Cr:YAG ceramic10.1038/s41598-021-93638-22045-2322https://doaj.org/article/4115070315934de18edccf7a762b1c372021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93638-2https://doaj.org/toc/2045-2322Abstract In this work we report the white light emission in transparent Cr:YAG ceramic pellet upon irradiation with focused beam of CW infrared laser diode. It was found that this phenomenon is specifically related to interaction of laser beam with a surface of the pellet. The white light was emitted outside an irradiated spot at the surface of the pellet and did not penetrate inside the pellet. Moreover, the red emission related to two-photon absorption along the laser beam penetrating the Cr3+:YAG pellet was observed. Interaction of the laser beam with the surface of the pellet leads to an efficient white light emission from an outer side of the pellet. The resulting white light emission did not entry back the pellet. Multiphoton ionization leading to intervalence charge transfer followed by light emission was proposed as the mechanism of experimentally observed white light emission.M. ChaikaR. TomalaW. StrekNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-5 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Chaika R. Tomala W. Strek Surface related laser induced white emission of Cr:YAG ceramic
description	Abstract In this work we report the white light emission in transparent Cr:YAG ceramic pellet upon irradiation with focused beam of CW infrared laser diode. It was found that this phenomenon is specifically related to interaction of laser beam with a surface of the pellet. The white light was emitted outside an irradiated spot at the surface of the pellet and did not penetrate inside the pellet. Moreover, the red emission related to two-photon absorption along the laser beam penetrating the Cr3+:YAG pellet was observed. Interaction of the laser beam with the surface of the pellet leads to an efficient white light emission from an outer side of the pellet. The resulting white light emission did not entry back the pellet. Multiphoton ionization leading to intervalence charge transfer followed by light emission was proposed as the mechanism of experimentally observed white light emission.
format	article
author	M. Chaika R. Tomala W. Strek
author_facet	M. Chaika R. Tomala W. Strek
author_sort	M. Chaika
title	Surface related laser induced white emission of Cr:YAG ceramic
title_short	Surface related laser induced white emission of Cr:YAG ceramic
title_full	Surface related laser induced white emission of Cr:YAG ceramic
title_fullStr	Surface related laser induced white emission of Cr:YAG ceramic
title_full_unstemmed	Surface related laser induced white emission of Cr:YAG ceramic
title_sort	surface related laser induced white emission of cr:yag ceramic
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4115070315934de18edccf7a762b1c37
work_keys_str_mv	AT mchaika surfacerelatedlaserinducedwhiteemissionofcryagceramic AT rtomala surfacerelatedlaserinducedwhiteemissionofcryagceramic AT wstrek surfacerelatedlaserinducedwhiteemissionofcryagceramic
_version_	1718387259531591680

Surface related laser induced white emission of Cr:YAG ceramic

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