Publication:
Absorption saturation analysis of Cr2+: ZnSe and Fe2+: ZnSe

dc.contributor.departmentDepartment of Physics
dc.contributor.kuauthorÇankaya, Hüseyin
dc.contributor.kuauthorDemirbaş, Ümit
dc.contributor.kuauthorErdamar, Ahmet Koray
dc.contributor.kuauthorSennaroğlu, Alphan
dc.contributor.kuprofileResearcher
dc.contributor.kuprofileMaster Student
dc.contributor.kuprofileMaster Student
dc.contributor.kuprofileFaculty Member
dc.contributor.yokidN/A
dc.contributor.yokid20328
dc.contributor.yokidN/A
dc.contributor.yokid23851
dc.date.accessioned2024-11-09T22:51:14Z
dc.date.issued2008
dc.description.abstractWe propose several methods for the accurate determination of the cross sections of solid-state saturable absorbers and apply them to the analysis of polycrystalline Cr2+ :ZnSe and Fe2+ :ZnSe. In the case of Cr2+ :ZnSe, both z-scan and power-dependent transmission measurements were made by using a continuous-wave fiber laser at 1800 nm and a pulsed optical parametric oscillator at 1570 nm. The average ground-state absorption cross sections at the wavelengths of 1800 and 1570 nm were determined to be 6.17 x 10(-19) cm(2) and 2.24 x 10(-19) cm(2), respectively. Furthermore, the ratio of the cross sections at these wavelengths (2.75) was close to the value of 2.55 obtained from absorption spectrum measurements. Excited-state absorption was found to be negligible at both wavelengths. In the case of Fe2+ : ZnSe, a tunable, pulsed Cr2+ :ZnSe laser was used to obtain saturation data (z-scan and power-dependent saturation) at the wavelengths of 2645 and 2730 nm. Average ground-state absorption cross sections at 2645 and 2730 nm were determined to be 1.73 x 10(-19) cm(2) and 2.47 x 10(-19) cm(2), respectively, again in very good agreement with those obtained from absorption spectrum measurements. (c) 2008 Optical Society of America.
dc.description.indexedbyWoS
dc.description.indexedbyScopus
dc.description.issue5
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.volume25
dc.identifier.doi10.1364/JOSAB.25.000794
dc.identifier.eissn1520-8540
dc.identifier.issn0740-3224
dc.identifier.quartileQ3
dc.identifier.scopus2-s2.0-62249106698
dc.identifier.urihttp://dx.doi.org/10.1364/JOSAB.25.000794
dc.identifier.urihttps://hdl.handle.net/20.500.14288/6810
dc.identifier.wos256323200014
dc.keywordsExcited-state absorption
dc.keywordsSaturable absorbers
dc.keywordsMidinfrared lasers
dc.keywordsCross-sections
dc.keywordsMu-m
dc.keywordsCyrstals
dc.languageEnglish
dc.publisherOptical Soc Amer
dc.sourceJournal of The Optical Society of America B-Optical Physics
dc.subjectOptics
dc.titleAbsorption saturation analysis of Cr2+: ZnSe and Fe2+: ZnSe
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.authorid0000-0001-7262-8831
local.contributor.authorid0000-0001-8420-8965
local.contributor.authorid0000-0001-8261-0715
local.contributor.authorid0000-0003-4391-0189
local.contributor.kuauthorÇankaya, Hüseyin
local.contributor.kuauthorDemirbaş, Ümit
local.contributor.kuauthorErdamar, Ahmet Koray
local.contributor.kuauthorSennaroğlu, Alphan
local.publication.orgunit1Graduate School of Sciences and Engineering
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Physics
relation.isOrgUnitOfPublicationc43d21f0-ae67-4f18-a338-bcaedd4b72a4
relation.isOrgUnitOfPublication.latestForDiscoveryc43d21f0-ae67-4f18-a338-bcaedd4b72a4

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