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 contribution

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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  • Cite this

    Wan Ismail, W. Z., Vo, T. P., Coutts, D. W., Goldys, E. M., & Dawes, J. M. (2013). Comparison of random lasing threshold for dielectrics and metal nanoparticles. In 2013 Australian and New Zealand Conference on Optics and Photonics (pp. 16-19). Barton, ACT: Engineers Australia.