OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 18 — Sep. 15, 2010
  • pp: 3063–3065

Spatial threshold in amplifying random media

Ramy G. S. El-Dardiry, Allard P. Mosk, and Ad Lagendijk  »View Author Affiliations


Optics Letters, Vol. 35, Issue 18, pp. 3063-3065 (2010)
http://dx.doi.org/10.1364/OL.35.003063


View Full Text Article

Enhanced HTML    Acrobat PDF (524 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We study experimentally as well as numerically the transport and generation of light in multiple scattering media with optical gain. By imaging the spatial distribution of light escaping from the side of the sample, the propagation depth is analyzed. Far below and far above random laser threshold, the spatial profile of emission light is independent of pump intensity, while around threshold, the spatial distribution of emission light changes profoundly. The experimental results are explained by interpreting the numerical solutions to a set of coupled time-dependent diffusion equations on a nonuniform spatial grid. Our studies provide a new and easily accessible method for observing the random laser threshold.

© 2010 Optical Society of America

OCIS Codes
(140.2050) Lasers and laser optics : Dye lasers
(140.3460) Lasers and laser optics : Lasers
(290.4210) Scattering : Multiple scattering

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 1, 2010
Manuscript Accepted: July 28, 2010
Published: September 8, 2010

Citation
Ramy G. S. El-Dardiry, Allard P. Mosk, and Ad Lagendijk, "Spatial threshold in amplifying random media," Opt. Lett. 35, 3063-3065 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-18-3063

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited