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Proceedings Paper

Lasing without cavity
Author(s): Bruno Sfez; Zvi Kotler; S. Margel; B. Nitzan
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Paper Abstract

Optical gain media filled with strong scatterers present a laser-like emission when optically pumped.Different regimes can be evidenced where amplified spontaneous emission together with multiple scattering play the main role. A mapping technique where both the concentrations of dye molecules and scatterers are independently varied allows to differentiate between those regimes. A simple model based on photon diffusion is presented and threshold for lasing emission is derived, and is compared with the experiment. Qualitative agreement is found, showing that the threshold critically depends on the samples macroscopic size.

Paper Details

Date Published: 22 September 1997
PDF: 9 pages
Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); doi: 10.1117/12.281376
Show Author Affiliations
Bruno Sfez, Soreq Nuclear Research Ctr. (Israel)
Zvi Kotler, Soreq Nuclear Research Ctr. (Israel)
S. Margel, Bar-Ilan Univ. (Israel)
B. Nitzan, Bar-Ilan Univ. (Israel)

Published in SPIE Proceedings Vol. 3110:
10th Meeting on Optical Engineering in Israel
Itzhak Shladov; Stanley R. Rotman, Editor(s)

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