Ultrafast random laser emission in a dye-doped silica gel powder
- 31 July 2008
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 16 (16) , 12251-12263
- https://doi.org/10.1364/oe.16.012251
Abstract
We report efficient random lasing in a ground powder of a novel solid-state material based on silica gel containing SiO2 nanoparticles embedding rhodamine 6G (Rh6G) dye. Basic properties of random lasing such as emission kinetics, emission spectrum, and threshold of stimulated emission are investigated by using real-time spectroscopy. The laser-like emission dynamics can be accurately described by a light diffusive propagation model. The device behavior is close to a conventional ultrafast Q-switched laser, which is an interesting fact aimed to further applications.Keywords
This publication has 31 references indexed in Scilit:
- Statistical studies of random-lasing modes and amplified spontaneous-emission spikes in weakly scattering systemsPhysical Review A, 2008
- Random lasing emission from a red fluorescent dye doped polystyrene film containing dispersed polystyrene nanoparticlesApplied Physics Letters, 2007
- Characterization of light scattering in translucent ceramicsJournal of the Optical Society of America B, 2007
- Directional random lasing in dye-TiO2 doped polymer nanowire array embedded in porous alumina membraneApplied Physics Letters, 2006
- Universal properties of random lasersIEEE Journal of Selected Topics in Quantum Electronics, 2003
- Dynamics of a Random Laser above ThresholdPhysical Review Letters, 2001
- Theory of laser action in scattering gain mediaOptics Letters, 1997
- Time-resolved studies of stimulated emission from colloidal dye solutionsOptics Letters, 1996
- Line narrowing in the dye solution with scattering centersOptics Communications, 1995
- Spectral and temporal measurements of laser action of Rhodamine 640 dye in strongly scattering mediaOptics Letters, 1994