Lasing with resonant feedback in random media

H. Cao, Y. Ling, J. Y. Xu, A. L. Burin, Robert P. H. Chang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We studied experimentally lasing with resonant feedback in disordered media. The lasing threshold and the number of lasing modes exhibit strong dependence on the mean free path. Using a spectrally resolved speckle technique, we obtained the spatial field correlation function for individual lasing states. The electric field amplitude of a lasing state falls exponentially with the transverse coordinate at the sample surface. The spatial extent of a lasing state shrinks as the scattering length decreases.

Original languageEnglish
Pages (from-to)215-218
Number of pages4
JournalPhysica B: Condensed Matter
Volume338
Issue number1-4
DOIs
Publication statusPublished - Oct 2003

Fingerprint

Speckle
lasing
Electric fields
Scattering
Feedback
mean free path
thresholds
electric fields
scattering

Keywords

  • Disordered system
  • Optical scattering
  • Random laser

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Lasing with resonant feedback in random media. / Cao, H.; Ling, Y.; Xu, J. Y.; Burin, A. L.; Chang, Robert P. H.

In: Physica B: Condensed Matter, Vol. 338, No. 1-4, 10.2003, p. 215-218.

Research output: Contribution to journalArticle

Cao, H. ; Ling, Y. ; Xu, J. Y. ; Burin, A. L. ; Chang, Robert P. H. / Lasing with resonant feedback in random media. In: Physica B: Condensed Matter. 2003 ; Vol. 338, No. 1-4. pp. 215-218.
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