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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 17380–17385

Microchip Random Laser based on a disordered TiO2-nanomembranes arrangement

Christian Tolentino Dominguez, Yvon Lacroute, Denis Chaumont, Marco Sacilotti, Cid B. de Araújo, and Anderson S. L. Gomes  »View Author Affiliations

Optics Express, Vol. 20, Issue 16, pp. 17380-17385 (2012)

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We developed a new scheme for obtaining coherent random lasing based on a chip consisting of a polymer film doped with Rhodamine 6G, having as scatterers butterfly-like TiO2 nanomembranes (TiO2-NM) supported on a glass substrate. The feedback mechanism for laser action is due to the multiple scattering of light by TiO2-NM rather than provided by localized variations of the refractive index in the polymer film. The above-threshold multiple spikes signature indicative of random laser emission with coherent feedback is confirmed. As nanomembranes are foreseen as new MEMS/NEMS building blocks, a new generation of combined active/passive photonic devices can be envisaged.

© 2012 OSA

OCIS Codes
(140.2050) Lasers and laser optics : Dye lasers
(160.5470) Materials : Polymers
(230.7390) Optical devices : Waveguides, planar
(260.2510) Physical optics : Fluorescence
(290.4210) Scattering : Multiple scattering
(160.4236) Materials : Nanomaterials

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 25, 2012
Revised Manuscript: June 21, 2012
Manuscript Accepted: July 10, 2012
Published: July 16, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Christian Tolentino Dominguez, Yvon Lacroute, Denis Chaumont, Marco Sacilotti, Cid B. de Araújo, and Anderson S. L. Gomes, "Microchip Random Laser based on a disordered TiO2-nanomembranes arrangement," Opt. Express 20, 17380-17385 (2012)

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