Publication:
Spectral and coherence signatures of threshold in random lasers

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dc.FundingDetailsMacquarie University
dc.citedby12
dc.contributor.affiliationsFaculty of Science and Technology
dc.contributor.affiliationsMacquarie University
dc.contributor.affiliationsARC Centre of Excellence Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS)
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.authorW.Z. Wan Ismailen_US
dc.contributor.authorLiu D.en_US
dc.contributor.authorClement S.en_US
dc.contributor.authorCoutts D.W.en_US
dc.contributor.authorGoldys E.M.en_US
dc.contributor.authorDawes J.M.en_US
dc.date.accessioned2024-05-29T01:54:43Z
dc.date.available2024-05-29T01:54:43Z
dc.date.issued2014
dc.description.abstractWe investigated the spectral and coherence signatures of threshold in random lasers with incoherent feedback consisting of alumina colloidal nanoparticles suspended in rhodamine 6G methanol solution under nanosecond-pulsewidth pumping, based on measurement of temporal and spatial coherence properties and comparison with emission spectra. Feedback in this random laser was provided by multiple scattering from the alumina particles, and the effects of particle concentration and scattering length were studied for the weakly scattering and diffusive scattering regimes. At threshold, in each regime, the visibility of the interference fringes jumped abruptly, coinciding with a substantial increase in peak emission intensity and decrease in the linewidth of a single dominant emission peak. � 2014 IOP Publishing Ltd.
dc.description.natureFinalen_US
dc.identifier.ArtNo105008
dc.identifier.doi10.1088/2040-8978/16/10/105008
dc.identifier.issn20408978
dc.identifier.issue10
dc.identifier.scopus2-s2.0-84907801454
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84907801454&doi=10.1088%2f2040-8978%2f16%2f10%2f105008&partnerID=40&md5=29a4d30b2945311dcd19022fc8dd62a9
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/9525
dc.identifier.volume16
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherInstitute of Physics Publishingen_US
dc.relation.ispartofJournal of Optics (United Kingdom)
dc.sourceScopus
dc.subjectcoherence propertiesen_US
dc.subjectemission spectraen_US
dc.subjectlasing thresholden_US
dc.subjectrandom lasersen_US
dc.subjectAluminaen_US
dc.subjectEmission spectroscopyen_US
dc.subjectLaser beamsen_US
dc.subjectOptical pumpingen_US
dc.subjectCoherence propertiesen_US
dc.subjectColloidal nanoparticlesen_US
dc.subjectDiffusive scatteringen_US
dc.subjectEmission spectrumsen_US
dc.subjectLasing thresholden_US
dc.subjectParticle concentrationsen_US
dc.subjectRandom lasersen_US
dc.subjectTemporal and spatialen_US
dc.subjectPumping (laser)en_US
dc.titleSpectral and coherence signatures of threshold in random lasersen_US
dc.typeArticleen_US
dspace.entity.typePublication

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