Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing

Abstract The combination of the outstanding properties of whispering gallery modes with both the flexibility and ease of processing of polymers is particularly attractive for photonics applications. However, the versatile fabrication of polymeric nano/microdevices with the desired photonic performan...

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Autores principales:	Nathália B. Tomazio, Leonardo De Boni, Cleber R. Mendonca
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4026151b46fa4151b32f25d98123da27
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spelling	oai:doaj.org-article:4026151b46fa4151b32f25d98123da272021-12-02T16:06:09ZLow threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing10.1038/s41598-017-09293-z2045-2322https://doaj.org/article/4026151b46fa4151b32f25d98123da272017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09293-zhttps://doaj.org/toc/2045-2322Abstract The combination of the outstanding properties of whispering gallery modes with both the flexibility and ease of processing of polymers is particularly attractive for photonics applications. However, the versatile fabrication of polymeric nano/microdevices with the desired photonic performance has proven challenging. Here, we report on lasing in Rhodamine B doped whispering gallery mode microcavities fabricated by direct laser writing via two-photon polymerization. Threshold pump energies as low as 12 nJ were achieved for free-space pulsed excitation at 532 nm. To the best of our knowledge, this is the lowest laser threshold attained for microcavities fabricated in a single step of femtosecond laser writing, a remarkable feat that stands out from other fabrication methods.Nathália B. TomazioLeonardo De BoniCleber R. MendoncaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nathália B. Tomazio Leonardo De Boni Cleber R. Mendonca Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
description	Abstract The combination of the outstanding properties of whispering gallery modes with both the flexibility and ease of processing of polymers is particularly attractive for photonics applications. However, the versatile fabrication of polymeric nano/microdevices with the desired photonic performance has proven challenging. Here, we report on lasing in Rhodamine B doped whispering gallery mode microcavities fabricated by direct laser writing via two-photon polymerization. Threshold pump energies as low as 12 nJ were achieved for free-space pulsed excitation at 532 nm. To the best of our knowledge, this is the lowest laser threshold attained for microcavities fabricated in a single step of femtosecond laser writing, a remarkable feat that stands out from other fabrication methods.
format	article
author	Nathália B. Tomazio Leonardo De Boni Cleber R. Mendonca
author_facet	Nathália B. Tomazio Leonardo De Boni Cleber R. Mendonca
author_sort	Nathália B. Tomazio
title	Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
title_short	Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
title_full	Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
title_fullStr	Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
title_full_unstemmed	Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
title_sort	low threshold rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4026151b46fa4151b32f25d98123da27
work_keys_str_mv	AT nathaliabtomazio lowthresholdrhodaminedopedwhisperinggallerymodemicrolasersfabricatedbydirectlaserwriting AT leonardodeboni lowthresholdrhodaminedopedwhisperinggallerymodemicrolasersfabricatedbydirectlaserwriting AT cleberrmendonca lowthresholdrhodaminedopedwhisperinggallerymodemicrolasersfabricatedbydirectlaserwriting
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Low threshold Rhodamine-doped whispering gallery mode microlasers fabricated by direct laser writing

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