Nanosecond modulation of thermal emission

Femtosecond laser pulses are used to modulate the thermal emission from semiconductor materials at the nanosecond timescale. A visible-frequency laser photoexcites energetic free carriers in intrinsic Si and GaAs wafers. As these free carriers return to equilibrium, they not only emit thermal radiat...

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Detalles Bibliográficos
Autor principal: Wasserman, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
News & Views
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804789/
https://www.ncbi.nlm.nih.gov/pubmed/31645916
http://dx.doi.org/10.1038/s41377-019-0179-1
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author Wasserman, Daniel
author_facet Wasserman, Daniel
author_sort Wasserman, Daniel
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description Femtosecond laser pulses are used to modulate the thermal emission from semiconductor materials at the nanosecond timescale. A visible-frequency laser photoexcites energetic free carriers in intrinsic Si and GaAs wafers. As these free carriers return to equilibrium, they not only emit thermal radiation on a picosecond time scale but also modulate the semiconductor thermal emission on a nanosecond to microsecond time scale, offering a novel route towards ultrafast infrared optical pulses.
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spelling pubmed-68047892019-10-23 Nanosecond modulation of thermal emission Wasserman, Daniel Light Sci Appl News & Views Femtosecond laser pulses are used to modulate the thermal emission from semiconductor materials at the nanosecond timescale. A visible-frequency laser photoexcites energetic free carriers in intrinsic Si and GaAs wafers. As these free carriers return to equilibrium, they not only emit thermal radiation on a picosecond time scale but also modulate the semiconductor thermal emission on a nanosecond to microsecond time scale, offering a novel route towards ultrafast infrared optical pulses. Nature Publishing Group UK 2019-07-24 /pmc/articles/PMC6804789/ /pubmed/31645916 http://dx.doi.org/10.1038/s41377-019-0179-1 Text en © The Author(s) 2019 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle News & Views
Wasserman, Daniel
Nanosecond modulation of thermal emission
title Nanosecond modulation of thermal emission
title_full Nanosecond modulation of thermal emission
title_fullStr Nanosecond modulation of thermal emission
title_full_unstemmed Nanosecond modulation of thermal emission
title_short Nanosecond modulation of thermal emission
title_sort nanosecond modulation of thermal emission
topic News & Views
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804789/
https://www.ncbi.nlm.nih.gov/pubmed/31645916
http://dx.doi.org/10.1038/s41377-019-0179-1
work_keys_str_mv AT wassermandaniel nanosecondmodulationofthermalemission

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