Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source

Abstract Intense femtosecond pulse filamentation in open-air has been utilized for long distance optical communication and remote sensing, but it results in nonlinear-effect driven eye hazards which are not addressed by current eye safety standards. A systematic study of filamentation in atmospheric...

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Autores principales:	Sean P. O’Connor, Christopher B. Marble, Dawson T. Nodurft, Gary D. Noojin, Adam R. Boretsky, Andrew W. Wharmby, Marlan O. Scully, Vladislav V. Yakovlev
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/32e2cc06d7d74fdcb02fd91776014b7b
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spelling	oai:doaj.org-article:32e2cc06d7d74fdcb02fd91776014b7b2021-12-02T15:09:13ZFilamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source10.1038/s41598-019-48542-12045-2322https://doaj.org/article/32e2cc06d7d74fdcb02fd91776014b7b2019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48542-1https://doaj.org/toc/2045-2322Abstract Intense femtosecond pulse filamentation in open-air has been utilized for long distance optical communication and remote sensing, but it results in nonlinear-effect driven eye hazards which are not addressed by current eye safety standards. A systematic study of filamentation in atmospheric air was performed using a tunable 100 fs near-infrared laser (1100 nm–2400 nm). While undergoing filamentation, each source wavelength was spectrally broadened resulting in supercontinuum and third harmonic generation in the visible and near-IR spectrum. We record the spectra at the center and fringes of the supercontinuum as it is imaged onto a planar surface. In a full beam collection regime, we report the energy of the sub-1000 nm light generation for source wavelengths from 1100 nm to 1600 nm and compare the energy density to the maximum permissible exposure values under the ANSI Z136.1 laser safety standard.Sean P. O’ConnorChristopher B. MarbleDawson T. NodurftGary D. NoojinAdam R. BoretskyAndrew W. WharmbyMarlan O. ScullyVladislav V. YakovlevNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-7 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sean P. O’Connor Christopher B. Marble Dawson T. Nodurft Gary D. Noojin Adam R. Boretsky Andrew W. Wharmby Marlan O. Scully Vladislav V. Yakovlev Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source
description	Abstract Intense femtosecond pulse filamentation in open-air has been utilized for long distance optical communication and remote sensing, but it results in nonlinear-effect driven eye hazards which are not addressed by current eye safety standards. A systematic study of filamentation in atmospheric air was performed using a tunable 100 fs near-infrared laser (1100 nm–2400 nm). While undergoing filamentation, each source wavelength was spectrally broadened resulting in supercontinuum and third harmonic generation in the visible and near-IR spectrum. We record the spectra at the center and fringes of the supercontinuum as it is imaged onto a planar surface. In a full beam collection regime, we report the energy of the sub-1000 nm light generation for source wavelengths from 1100 nm to 1600 nm and compare the energy density to the maximum permissible exposure values under the ANSI Z136.1 laser safety standard.
format	article
author	Sean P. O’Connor Christopher B. Marble Dawson T. Nodurft Gary D. Noojin Adam R. Boretsky Andrew W. Wharmby Marlan O. Scully Vladislav V. Yakovlev
author_facet	Sean P. O’Connor Christopher B. Marble Dawson T. Nodurft Gary D. Noojin Adam R. Boretsky Andrew W. Wharmby Marlan O. Scully Vladislav V. Yakovlev
author_sort	Sean P. O’Connor
title	Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source
title_short	Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source
title_full	Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source
title_fullStr	Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source
title_full_unstemmed	Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source
title_sort	filamentation in atmospheric air with tunable 1100–2400 nm near-infrared femtosecond laser source
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/32e2cc06d7d74fdcb02fd91776014b7b
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Filamentation in Atmospheric Air with Tunable 1100–2400 nm Near-Infrared Femtosecond Laser Source

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