Near-IR bromine Laser Induced Breakdown Spectroscopy detection and ambient gas effects on emission line asymmetric Stark broadening and shift

Asimellis, G; Giannoudakos, A; Kompitsas, M

dc.contributor.author	Asimellis, G	en
dc.contributor.author	Giannoudakos, A	en
dc.contributor.author	Kompitsas, M	en
dc.date.accessioned	2014-03-01T01:24:42Z
dc.date.available	2014-03-01T01:24:42Z
dc.date.issued	2006	en
dc.identifier.issn	0584-8547	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17402
dc.subject	Ambient gas effects	en
dc.subject	Bromine content	en
dc.subject	Halogen detection	en
dc.subject	Laser-induced breakdown spectroscopy	en
dc.subject	Stark effect	en
dc.subject.classification	Spectroscopy	en
dc.subject.other	Bromine	en
dc.subject.other	Chemical sensors	en
dc.subject.other	Helium	en
dc.subject.other	Laser ablation	en
dc.subject.other	Ambient gas effects	en
dc.subject.other	Halogen detection	en
dc.subject.other	Laser induced breakdown spectroscopy	en
dc.subject.other	Stark effect	en
dc.subject.other	Atomic spectroscopy	en
dc.title	Near-IR bromine Laser Induced Breakdown Spectroscopy detection and ambient gas effects on emission line asymmetric Stark broadening and shift	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.sab.2006.10.014	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.sab.2006.10.014	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Investigation via Laser-Induced Breakdown Spectroscopy of a near-infrared bromine emission line (827.2 nm) with an UltraViolet ablation laser and a gated detector is reported. The effects of ambient pressure and gas species (air, O-2, N-2 and He) on the atomic emission line strength and spectral profile were systematically investigated. Substantially improved signal strength and reduced background radiation are demonstrated near 100 mbar ambient pressure with all gases. Optimal results were achieved when helium was used. Asymmetric broadening and shift of the 827.2 nm bromine line, attributed to pressure-dependent Stark effect has been revealed. This effect is prominent when air, oxygen or nitrogen are present and is much less manifested when helium is used. Possible interpretations of this effect are presented. (c) 2006 Published by Elsevier B.V.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Spectrochimica Acta - Part B Atomic Spectroscopy	en
dc.identifier.doi	10.1016/j.sab.2006.10.014	en
dc.identifier.isi	ISI:000243209300005	en
dc.identifier.volume	61	en
dc.identifier.issue	12	en
dc.identifier.spage	1270	en
dc.identifier.epage	1278	en