TY - JOUR
T1 - Lasing threshold behavior of microcavities
T2 - Observation by polarization and spectroscopic measurements
AU - Wang, Xiaomei
AU - Linke, R. A.
AU - Devlin, G.
AU - Yokoyama, H.
PY - 1993
Y1 - 1993
N2 - We propose and demonstrate the use of polarization to determine the threshold of an optical microcavity when the output power versus pump power does not show a sharp threshold. A lasing threshold is observed via a sharp transition in the polarization and a simultaneous reduction in emission linewidth. We find that dipole angular diffusion in a dye gain medium has a significant effect on the polarization of the emission. A theoretical model including the diffusion process is presented. Quantitative agreement with the measurements is obtained.
AB - We propose and demonstrate the use of polarization to determine the threshold of an optical microcavity when the output power versus pump power does not show a sharp threshold. A lasing threshold is observed via a sharp transition in the polarization and a simultaneous reduction in emission linewidth. We find that dipole angular diffusion in a dye gain medium has a significant effect on the polarization of the emission. A theoretical model including the diffusion process is presented. Quantitative agreement with the measurements is obtained.
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U2 - 10.1103/PhysRevA.47.R2488
DO - 10.1103/PhysRevA.47.R2488
M3 - Article
AN - SCOPUS:0009729016
VL - 47
SP - R2488-R2491
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 4
ER -