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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 15 — Jul. 20, 2009
  • pp: 13202–13215

1Low threshold random lasing in dye-doped silica nano powders

Sara García-Revilla, Marcos Zayat, Rolindes Balda, Mohammad Al-Saleh, David Levy, and Joaquín Fernández  »View Author Affiliations


Optics Express, Vol. 17, Issue 15, pp. 13202-13215 (2009)
http://dx.doi.org/10.1364/OE.17.013202


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Abstract

Random laser action is demonstrated in two kinds of 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. Both organic-inorganic hybrid materials present different laser thresholds and emission features which are systematically studied and compared. The dependence of the emission kinetics, emission spectrum, random laser threshold and slope efficiency on the dye doped nanoparticles concentration is investigated in both cases. We also explore if the incorporation of additional TiO2 scatterers could enhance the random laser operation of the studied systems.

© 2009 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

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 28, 2009
Revised Manuscript: June 29, 2009
Manuscript Accepted: July 5, 2009
Published: July 17, 2009

Citation
Sara García-Revilla, Marcos Zayac, Rolindes Balda, Mohammad Al-Saleh, David Levy, and Joaquín Fernández, "1Low threshold random lasing in dye-doped silica nano powders," Opt. Express 17, 13202-13215 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-15-13202


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