Hot phonons in quantum cascade lasers

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

Research output: Contribution to conferencePaperpeer-review


Evidence of non-equilibrium population of interface phonons in quantum cascade lasers is obtained by micro-probe Raman and photoluminescence measurements. Interface phonon lifetimes of 1 ps at 116 K lattice temperatures are estimated. The analysis of the Stokes/anti-Stokes Raman spectra gives an interface phonon temperature of 158 K.

Original languageEnglish (US)
Number of pages1
StatePublished - 2000
Externally publishedYes
Event2000 Confernce on Lasers and Electro-Optics Europe (CLEO 2000) - Nice, France
Duration: Sep 10 2000Sep 15 2000


Other2000 Confernce on Lasers and Electro-Optics Europe (CLEO 2000)
CityNice, France

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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