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Optics Express

Optics Express

  • Vol. 16, Iss. 16 — Aug. 4, 2008
  • pp: 12251–12263

Ultrafast random laser emission in a dye-doped silica gel powder

Sara García-Revilla, Joaquín Fernández, Maria Asunción Illarramendi, Begoña García-Ramiro, Rolindes Balda, Hongtao Cui, Marcos Zayat, and David Levy  »View Author Affiliations

Optics Express, Vol. 16, Issue 16, pp. 12251-12263 (2008)

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We report efficient random lasing in a ground powder of a novel solid-state material based on silica gel containing SiO2 nanoparticles embedding rhodamine 6G (Rh6G) dye. Basic properties of random lasing such as emission kinetics, emission spectrum, and threshold of stimulated emission are investigated by using real-time spectroscopy. The laser-like emission dynamics can be accurately described by a light diffusive propagation model. The device behavior is close to a conventional ultrafast Q-switched laser, which is an interesting fact aimed to further applications.

© 2008 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(290.4210) Scattering : Multiple scattering
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

Original Manuscript: June 11, 2008
Revised Manuscript: July 24, 2008
Manuscript Accepted: July 27, 2008
Published: July 31, 2008

Sara García-Revilla, Joaquin Fernández, Maria A. Illarramendi, Begoña García-Ramiro, Rolindes Balda, Hongtao Cui, Marcos Zayat, and David Levy, "Ultrafast random laser emission in a dye-doped silica gel powder," Opt. Express 16, 12251-12263 (2008)

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