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Conferences > CLEO_Europe > 2000 > CWF > CWF83
  • Conference on Lasers and Electro-Optics Europe
  • Technical Digest Series (Optica Publishing Group, 2000),
  • paper CWF83

Hot phonons in quantum cascade lasers

Vincenzo Spagnolo, Mariano Troccoli, Gaetano Scamarcio, Claire Gmachl, Alessandro Tredicucci, Federico Capasso, Albert L. Hutchinson, Deborah L. Sivco, and Alfred Y. Cho

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Abstract

We report evidence of non-equilibrium population of interface phonons in cw operated quantum cascade lasers, obtained by micro-probe Raman and photoluminescence measurements. Interface phonon lifetimes of 1ps (0.8ps) at 116K (193K) lattice temperatures, are estimated.

© 2000 IEEE

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