OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 21, Iss. 1 — Jan. 1, 2004
  • pp: 159–167

Random lasing in closely packed resonant scatterers

Xiaohua H. Wu, Alexey Yamilov, Heeso Noh, Hui Cao, Eric W. Seelig, and Robert P. H. Chang  »View Author Affiliations


JOSA B, Vol. 21, Issue 1, pp. 159-167 (2004)
http://dx.doi.org/10.1364/JOSAB.21.000159


View Full Text Article

Enhanced HTML    Acrobat PDF (328 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report experimental and theoretical studies of the random lasing threshold and its fluctuation in an ensemble of highly packed spherical dielectric scatterers. The ratio of the sphere diameter to the lasing wavelength was varied in a wide range, which covered the transition from the weak Rayleigh scattering regime to the strong Mie scattering regime. Experimentally, when the diameters of monodispersed ZnO spherical particles changed from less than 100 to more than 600 nm we observed a drastic decrease of the lasing threshold at small-particle size followed by a plateau at large particle size. We attribute this effect to the particle-size dependence of transport mean free path lt, which was deduced from coherent backscattering measurements. Theoretical calculation of lt reproduced experimental behavior. Using the finite-difference time domain method, we obtained the lasing threshold and its standard deviation as functions of particle size in two-dimensional systems. The results of our numerical simulations are in qualitative agreement with the experimental data.

© 2004 Optical Society of America

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

Citation
Xiaohua H. Wu, Alexey Yamilov, Heeso Noh, Hui Cao, Eric W. Seelig, and Robert P. H. Chang, "Random lasing in closely packed resonant scatterers," J. Opt. Soc. Am. B 21, 159-167 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-1-159

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