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2D tunable all-solid-state random laser in the visible

A two-dimensional (2D) solid-state random laser emitting in the visible is demonstrated, in which optical feedback is provided by a controlled disordered arrangement of air-holes in a dye-doped polymer film. We find an optimal scatterer density for which threshold is minimum and scattering is the st...

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Autores principales: Kumar, Bhupesh, Homri, Ran, Sebbah, Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10205816/
https://www.ncbi.nlm.nih.gov/pubmed/37221207
http://dx.doi.org/10.1038/s41598-023-35388-x
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author Kumar, Bhupesh
Homri, Ran
Sebbah, Patrick
author_facet Kumar, Bhupesh
Homri, Ran
Sebbah, Patrick
author_sort Kumar, Bhupesh
collection PubMed
description A two-dimensional (2D) solid-state random laser emitting in the visible is demonstrated, in which optical feedback is provided by a controlled disordered arrangement of air-holes in a dye-doped polymer film. We find an optimal scatterer density for which threshold is minimum and scattering is the strongest. We show that the laser emission can be red-shifted by either decreasing scatterer density or increasing pump area. We show that spatial coherence is easily controlled by varying pump area. Such a 2D random laser provides with a compact on-chip tunable laser source and a unique platform to explore non-Hermitian photonics in the visible.
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spelling pubmed-102058162023-05-25 2D tunable all-solid-state random laser in the visible Kumar, Bhupesh Homri, Ran Sebbah, Patrick Sci Rep Article A two-dimensional (2D) solid-state random laser emitting in the visible is demonstrated, in which optical feedback is provided by a controlled disordered arrangement of air-holes in a dye-doped polymer film. We find an optimal scatterer density for which threshold is minimum and scattering is the strongest. We show that the laser emission can be red-shifted by either decreasing scatterer density or increasing pump area. We show that spatial coherence is easily controlled by varying pump area. Such a 2D random laser provides with a compact on-chip tunable laser source and a unique platform to explore non-Hermitian photonics in the visible. Nature Publishing Group UK 2023-05-23 /pmc/articles/PMC10205816/ /pubmed/37221207 http://dx.doi.org/10.1038/s41598-023-35388-x Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kumar, Bhupesh
Homri, Ran
Sebbah, Patrick
2D tunable all-solid-state random laser in the visible
title 2D tunable all-solid-state random laser in the visible
title_full 2D tunable all-solid-state random laser in the visible
title_fullStr 2D tunable all-solid-state random laser in the visible
title_full_unstemmed 2D tunable all-solid-state random laser in the visible
title_short 2D tunable all-solid-state random laser in the visible
title_sort 2d tunable all-solid-state random laser in the visible
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10205816/
https://www.ncbi.nlm.nih.gov/pubmed/37221207
http://dx.doi.org/10.1038/s41598-023-35388-x
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