TY - JOUR
T1 - β factor in a random laser
AU - Van Soest, Gijs
AU - Lagendijk, Ad
N1 - ©2002 American Physical Society
PY - 2002/3/18
Y1 - 2002/3/18
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=41349098307&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.65.047601
DO - 10.1103/PhysRevE.65.047601
M3 - Article
C2 - 12006082
AN - SCOPUS:41349098307
SN - 1539-3755
VL - 65
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 4
M1 - 047601
ER -