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Optics Letters

Optics Letters


  • Vol. 33, Iss. 9 — May. 1, 2008
  • pp: 920–922

Single- and two-photon excitation of a GaAs random laser

G. Zhu, C. E. Small, and M. A. Noginov  »View Author Affiliations

Optics Letters, Vol. 33, Issue 9, pp. 920-922 (2008)

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We have demonstrated an anti-Stokes random laser emission at λ 885 nm in micrometer-size powder of GaAs . The maximal pumping wavelength, λ = 1300 nm , exceeded the lasing wavelength by nearly 50%. We conclude that both one- and two-photon pumping contribute to optical excitation of the material, with the two-photon pumping being a key process in creating the population inversion and gain.

© 2008 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(290.0290) Scattering : Scattering

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 19, 2007
Revised Manuscript: February 20, 2008
Manuscript Accepted: February 20, 2008
Published: April 22, 2008

G. Zhu, C. E. Small, and M. A. Noginov, "Single- and two-photon excitation of a GaAs random laser," Opt. Lett. 33, 920-922 (2008)

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