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1Low Threshold Random Lasing in Dye-Doped Silica Nano Powders

Sara García-Revilla, Marcos Zayac, Rolindes Balda, Mohammad Al-Saleh, David Levy, Joaquín Fernández

Opt Express. 2009 Jul 20;17(15):13202-15.

PMID: 19654726

Abstract:

Random laser action is demonstrated in two kinds of powder samples containing rhodamine 6G (Rh6G) doped SiO2 nanoparticles which are either directly dispersed within pure silica particles or embedded in a silica gel matrix which is subsequently ground. Both organic-inorganic hybrid materials present different laser thresholds and emission features which are systematically studied and compared. The dependence of the emission kinetics, emission spectrum, random laser threshold and slope efficiency on the dye doped nanoparticles concentration is investigated in both cases. We also explore if the incorporation of additional TiO2 scatterers could enhance the random laser operation of the studied systems.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
LS76525 Titanium doped silica Titanium doped silica Price
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