We compare the lasing threshold of random lasers composed of dielectric (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.
|Title of host publication||2013 Australian and New Zealand Conference on Optics and Photonics|
|Place of Publication||Barton, ACT|
|Number of pages||6|
|Publication status||Published - 2013|
|Event||Australian and New Zealand Conference on Optics and Photonics - Fremantle, WA|
Duration: 8 Dec 2013 → 11 Dec 2013
|Conference||Australian and New Zealand Conference on Optics and Photonics|
|Period||8/12/13 → 11/12/13|
Wan Zakiah, W. I., Vo, T. P., Coutts, D. W., Goldys, E. M., & Dawes, J. M. (2013). Comparison of lasing threshold for dye-alumina and dye-gold nanoparticle random lasers. In 2013 Australian and New Zealand Conference on Optics and Photonics (pp. 1-6). Barton, ACT: Engineers Australia.