Lasing without cavity

Bruno Sfez; Zvi Kotler; S. Margel; B. Nitzan

doi:10.1117/12.281376

22 September 1997 Lasing without cavity

Bruno Sfez, Zvi Kotler, S. Margel, B. Nitzan

Proceedings Volume 3110, 10th Meeting on Optical Engineering in Israel; (1997) https://doi.org/10.1117/12.281376
Event: 10th Meeting on Optical Engineering in Israel, 1997, Jerusalem, Israel

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.

Citation Download Citation

Bruno Sfez, Zvi Kotler, S. Margel, and B. Nitzan "Lasing without cavity", Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); https://doi.org/10.1117/12.281376

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