Resonant second-order nonlinear optical processes in quantum cascade lasers Academic Article uri icon


  • 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.

published proceedings

  • Physical Review Letters

author list (cited authors)

  • Owschimikow, N., Gmachl, C., Belyanin, A., Kocharovsky, V., Sivco, D. L., Colombelli, R., Capasso, F., & Cho, A. Y.

complete list of authors

  • Owschimikow, N||Gmachl, C||Belyanin, A||Kocharovsky, V||Sivco, DL||Colombelli, R||Capasso, F||Cho, AY

publication date

  • January 2003