Effect of external feedback on lasing in random media

H. Cao, Y. G. Zhao, X. Liu, E. W. Seelig, Robert P. H. Chang

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

We have studied the effect of external feedback on random laser action in ZnO polycrystalline thin films. Reinjection of light into scattering-formed cavities strongly influences modes, intensity, and threshold of random lasers. We have compared the effect of external feedback from the side of the film and that from the film surface. Our study opens the possibility of controlling random laser frequencies by external feedback.

Original languageEnglish
Pages (from-to)1213-1215
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number9
Publication statusPublished - Aug 30 1999

Fingerprint

lasing
lasers
light scattering
cavities
thresholds
thin films

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Cao, H., Zhao, Y. G., Liu, X., Seelig, E. W., & Chang, R. P. H. (1999). Effect of external feedback on lasing in random media. Applied Physics Letters, 75(9), 1213-1215.

Effect of external feedback on lasing in random media. / Cao, H.; Zhao, Y. G.; Liu, X.; Seelig, E. W.; Chang, Robert P. H.

In: Applied Physics Letters, Vol. 75, No. 9, 30.08.1999, p. 1213-1215.

Research output: Contribution to journalArticle

Cao, H, Zhao, YG, Liu, X, Seelig, EW & Chang, RPH 1999, 'Effect of external feedback on lasing in random media', Applied Physics Letters, vol. 75, no. 9, pp. 1213-1215.
Cao H, Zhao YG, Liu X, Seelig EW, Chang RPH. Effect of external feedback on lasing in random media. Applied Physics Letters. 1999 Aug 30;75(9):1213-1215.
Cao, H. ; Zhao, Y. G. ; Liu, X. ; Seelig, E. W. ; Chang, Robert P. H. / Effect of external feedback on lasing in random media. In: Applied Physics Letters. 1999 ; Vol. 75, No. 9. pp. 1213-1215.
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