Heat transfer speed and phonon related phenomena in terahertz quantum cascade lasers

Gaetano Scamarcio; Miriam Serena Vitiello

doi:10.1117/12.846428

12 February 2010 Heat transfer speed and phonon related phenomena in terahertz quantum cascade lasers

Gaetano Scamarcio, Miriam Serena Vitiello

Proceedings Volume 7616, Novel In-Plane Semiconductor Lasers IX; 761617 (2010) https://doi.org/10.1117/12.846428
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

We report on the measurement of both transverse and in-plane heat transfer speed in GaAs/AlGaAs quantum cascade lasers via time-resolved micro-probe photoluminescence. We found approximately a one order of magnitude reduction in the heat transverse speed with respect to bulk values that we ascribed to the heat interface boundary resistance. We also compared the non equilibrium population of phonons via anti-Stokes Raman scattering in different active region configurations.

Citation Download Citation

Gaetano Scamarcio and Miriam Serena Vitiello "Heat transfer speed and phonon related phenomena in terahertz quantum cascade lasers", Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 761617 (12 February 2010); https://doi.org/10.1117/12.846428

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