We compare the electronic temperatures and the electron lattice coupling in mid-infrared and terahertz GaAs-based quantum cascade lasers (QCLs). Thermalized hot-electron distributions are found in both classes of QCLs. The results illustrate the influence of the quantum design on the electron-lattice energy relaxation rates, that ultimately determine the device thermal performance.

Experimental investigation of hot carriers in THz and mid-IR quantum cascade lasers

V. Spagnolo;
2006

Abstract

We compare the electronic temperatures and the electron lattice coupling in mid-infrared and terahertz GaAs-based quantum cascade lasers (QCLs). Thermalized hot-electron distributions are found in both classes of QCLs. The results illustrate the influence of the quantum design on the electron-lattice energy relaxation rates, that ultimately determine the device thermal performance.
14th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors
978-3-540-36587-7
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11589/22114
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