Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers

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Time resolved imaging spectroscopy were used to study the spatial and temporal evolution of LIBS (Laser Induced Breakdown Spectroscopy) plasmas generated in Cu substrates by laser pulses of different duration. Long laser pulses (microsecond) and short laser pulses (nanosecond) as well as multipulse...

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Autores principales:	Alvira, Fernando Carlos, Ponce, L., Arronte, M., Bilmes, Gabriel Mario
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2011
Materias:	Física imaging spectroscopy LIBS
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/178350
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-178350
record_format	dspace
spelling	I19-R120-10915-1783502025-04-22T20:28:26Z http://sedici.unlp.edu.ar/handle/10915/178350 Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers Alvira, Fernando Carlos Ponce, L. Arronte, M. Bilmes, Gabriel Mario 2011-01-01 2025-04-22T18:53:28Z en Física imaging spectroscopy LIBS Time resolved imaging spectroscopy were used to study the spatial and temporal evolution of LIBS (Laser Induced Breakdown Spectroscopy) plasmas generated in Cu substrates by laser pulses of different duration. Long laser pulses (microsecond) and short laser pulses (nanosecond) as well as multipulse emission were used for excitation. Analysis was made by using an imaging spectrometer with time resolved detection. Results show that the use of long laser excitation pulses produce emission spectra with the same signal to noise ratio, but with lower resolution than those produced with shorter ones. The different species generated in LIBS experiments as neutral or single ionized have a different spatial distribution inside the plasma. We demonstrated that using spatial discrimination procedures is possible to obtain spectra with the same signal to noise ratio than those obtained with a gating detector. In this case an appreciable advantage in cost reduction is obtained by replacing the gating detector by a cheap screen. Laboratorio de Ablación Láser, Fotónica e Imágenes 3D Articulo Articulo http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) application/pdf
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física imaging spectroscopy LIBS
spellingShingle	Física imaging spectroscopy LIBS Alvira, Fernando Carlos Ponce, L. Arronte, M. Bilmes, Gabriel Mario Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
topic_facet	Física imaging spectroscopy LIBS
description	Time resolved imaging spectroscopy were used to study the spatial and temporal evolution of LIBS (Laser Induced Breakdown Spectroscopy) plasmas generated in Cu substrates by laser pulses of different duration. Long laser pulses (microsecond) and short laser pulses (nanosecond) as well as multipulse emission were used for excitation. Analysis was made by using an imaging spectrometer with time resolved detection. Results show that the use of long laser excitation pulses produce emission spectra with the same signal to noise ratio, but with lower resolution than those produced with shorter ones. The different species generated in LIBS experiments as neutral or single ionized have a different spatial distribution inside the plasma. We demonstrated that using spatial discrimination procedures is possible to obtain spectra with the same signal to noise ratio than those obtained with a gating detector. In this case an appreciable advantage in cost reduction is obtained by replacing the gating detector by a cheap screen.
format	Articulo Articulo
author	Alvira, Fernando Carlos Ponce, L. Arronte, M. Bilmes, Gabriel Mario
author_facet	Alvira, Fernando Carlos Ponce, L. Arronte, M. Bilmes, Gabriel Mario
author_sort	Alvira, Fernando Carlos
title	Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
title_short	Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
title_full	Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
title_fullStr	Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
title_full_unstemmed	Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
title_sort	time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers
publishDate	2011
url	http://sedici.unlp.edu.ar/handle/10915/178350
work_keys_str_mv	AT alvirafernandocarlos timeresolvingimagingspectroscopyappliedtotheanalysisofplasmasgeneratedbypulsedlasers AT poncel timeresolvingimagingspectroscopyappliedtotheanalysisofplasmasgeneratedbypulsedlasers AT arrontem timeresolvingimagingspectroscopyappliedtotheanalysisofplasmasgeneratedbypulsedlasers AT bilmesgabrielmario timeresolvingimagingspectroscopyappliedtotheanalysisofplasmasgeneratedbypulsedlasers
_version_	1855354183772798976

Time resolving imaging spectroscopy applied to the analysis of plasmas generated by pulsed lasers

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