Abstract
We develop a definition for the β factor, the fraction of spontaneous emission that seeds the laser process, for a random laser. With the wavelength-dependence of the gain (and potentially scattering) being the only possible criterion in the competition between gain and loss, our concept of β is based on the spectral properties of the spontaneous emission and laser light. We find β≈0.1. We discuss the apparent similarities and differences between the β for a cavity and a random laser.
Original language | English |
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Article number | 047601 |
Number of pages | 4 |
Journal | Physical review E: Statistical physics, plasmas, fluids, and related interdisciplinary topics |
Volume | 65 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2002 |
Keywords
- METIS-207605