Two-photon pumping of a random laser

Alexander L. Burin, Hui Cao, M. A. Ratner

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Random lasing originates from pumping disordered materials by high-intensity and high-frequency light. The performance of random lasers is restricted due to the absorption of pumping light within the interfacial layer. The lifetime of optical modes there is short due to the emission of photons to the outside, and it is hard to pump them sufficiently for lasing. The opportunity to excite the modes far from the material surface using two-photon absorption is investigated within the diffusion model. The authors show that lasing requires lower pump power for the two-photon pumping mechanism under conditions of negligible absorption of the emitted light. Experimental implications and restrictions are discussed.

Original languageEnglish
Pages (from-to)124-127
Number of pages4
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume9
Issue number1
DOIs
Publication statusPublished - Jan 1 2003

Keywords

  • Inhomogeneous medium
  • Random laser
  • Two-photon absorption

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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