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Proceedings Paper

Real-time spectroscopy of novel solid state random lasers
Author(s): Sara García-Revilla; Joaquín Fernández; Rolindes Balda; Marcos Zayat; David Levy
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Paper Abstract

Herein we report efficient random lasing in two powder samples containing rhodamine 6G (Rh6G) doped SiO2 nanoparticles which are either directly dispersed within pure silica particles or embedded in a silica gel matrix which is subsequently ground. Basic properties of random lasing such as emission kinetics, emission spectrum, and stimulated emission threshold are investigated in both novel solid-state materials by real-time spectroscopy. The laser-like emission dynamics of the ground powder obtained out of a bulk silica gel containing 2% Rh6G-SiO2 nanoparticles was accurately described by a light diffusive propagation model. The device behavior is close to a conventional ultrafast Q-switched laser, which is a very interesting feature aimed to further applications.

Paper Details

Date Published: 6 February 2009
PDF: 11 pages
Proc. SPIE 7212, Optical Components and Materials VI, 72120K (6 February 2009);
Show Author Affiliations
Sara García-Revilla, Escuela Técnica Superior de Ingeniería (Spain)
Joaquín Fernández, Escuela Técnica Superior de Ingeniería (Spain)
Univ. del País Vasco (Spain)
Rolindes Balda, Escuela Técnica Superior de Ingeniería (Spain)
Univ. del País Vasco (Spain)
Marcos Zayat, Instituto de Ciencia de Materiales de Madrid, CSIC (Spain)
David Levy, Instituto de Ciencia de Materiales de Madrid, CSIC (Spain)

Published in SPIE Proceedings Vol. 7212:
Optical Components and Materials VI
Shibin Jiang; Michel J. F. Digonnet; John W. Glesener; J. Christopher Dries, Editor(s)

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