Abstract
We studied experimentally lasing with resonant feedback in disordered media. The lasing threshold and the number of lasing modes exhibit strong dependence on the mean free path. Using a spectrally resolved speckle technique, we obtained the spatial field correlation function for individual lasing states. The electric field amplitude of a lasing state falls exponentially with the transverse coordinate at the sample surface. The spatial extent of a lasing state shrinks as the scattering length decreases.
Original language | English (US) |
---|---|
Pages (from-to) | 215-218 |
Number of pages | 4 |
Journal | Physica B: Condensed Matter |
Volume | 338 |
Issue number | 1-4 |
DOIs | |
State | Published - Oct 1 2003 |
Event | Proceedings of the Sixth International Conference on Electrica (ETOPIM 6) - Snowbird, UT, United States Duration: Jul 15 2002 → Jul 19 2002 |
Keywords
- Disordered system
- Optical scattering
- Random laser
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering