Resonant second-order nonlinear optical processes in quantum cascade lasers

Nina Owschimikow, Claire Gmachl, Alexey Belyanin, Vitaly Kocharovsky, Deborah L. Sivco, Raffaele Colombelli, Federico Capasso, Alfred Y. Cho

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

Resonant second-order nonlinear optical processes in Quantum Cascade (QC) Lasers were analyzed. It was demonstrate that intersubband (IS) optical transitions in stacked semiconductor quantum wells (QWs) can function as a simultaneous source of fundamental pump and nonlinearity generated light. Laser peak optical powers of 60 and 80 mW resulted in 30 nW of sum-frequency signal and 10-15 nW of second-harmonic signal.

Original languageEnglish (US)
Pages (from-to)439021-439024
Number of pages4
JournalPhysical review letters
Volume90
Issue number4
StatePublished - Jan 31 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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