Comparison of random lasing threshold for dielectrics and metal nanoparticles

Wan Zakiah Wan Ismail, Thanh Phong Vo, David W. Coutts, Ewa M. Goldys, Judith M. Dawes

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    Abstract

    We compare the lasing threshold of random lasers composed of ielectric (alumina) or metal (gold) colloidal nanoparticles assessed by emission spectrum measurements. The lasing threshold can be observed when the emission intensity increases and emission linewidth decreases dramatically Random lasers with gold nanoparticles demonstrate higher intensity and lower lasing threshold than those with dielectric nanoparticles due to enhanced fields from localized surface plasmons.
    Original languageEnglish
    Title of host publication2013 Australian and New Zealand Conference on Optics and Photonics
    Place of PublicationBarton, ACT
    PublisherEngineers Australia
    Pages16-19
    Number of pages4
    ISBN (Print)9781922107183
    Publication statusPublished - 2013
    EventAustralian and New Zealand Conference on Optics and Photonics - Fremantle, WA
    Duration: 8 Dec 201311 Dec 2013

    Conference

    ConferenceAustralian and New Zealand Conference on Optics and Photonics
    CityFremantle, WA
    Period8/12/1311/12/13

    Keywords

    • Nanoparticles
    • random laser
    • lasing threshold
    • plasmonics

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