Effect of external feedback on lasing in random media
- 20 August 1999
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 75 (9) , 1213-1215
- https://doi.org/10.1063/1.124645
Abstract
We have studied the effect of external feedback on random laser action in ZnO polycrystalline thin films. Reinjection of light into scattering-formed cavities strongly influences modes, intensity, and threshold of random lasers. We have compared the effect of external feedback from the side of the film and that from the film surface. Our study opens the possibility of controlling random laser frequencies by external feedback.Keywords
This publication has 15 references indexed in Scilit:
- External-feedback effects in high-gain scattering mediaOptics Letters, 1997
- Interface reflection effects in photonic paintOptics Letters, 1995
- Experimental Evidence for Recurrent Multiple Scattering Events of Light in Disordered MediaPhysical Review Letters, 1995
- Laser action in strongly scattering mediaNature, 1994
- Scattering for super-radiationNature, 1994
- Internal reflection of diffusive light in random mediaPhysical Review A, 1991
- Surface reflections and optical transport through random media: Coherent backscattering, optical memory effect, frequency, and dynamical correlationsPhysical Review B, 1990
- Geometric scaling of the optical memory effect in coherent-wave propagation through random mediaPhysical Review B, 1989
- Influence of internal reflection on diffusive transport in strongly scattering mediaPhysics Letters A, 1989
- Correlations and Fluctuations of Coherent Wave Transmission through Disordered MediaPhysical Review Letters, 1988