Photon-induced carrier transport in high efficiency midinfrared quantum cascade lasers

Details Photon-induced carrier transport in high efficiency midinfrared quantum cascade lasers Photon-induced carrier transport in high efficiency midinfrared quantum cascade lasers

2011-07-27

arxiv.org/abs/1107.5418v1

J. Appl. Phys. 110, 013108 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1063/1.3608116

A midinfrared quantum cascade laser with high wall-plug efficiency is analyzed by means of an ensemble Monte Carlo method. Both the carrier transport and the cavity field dynamics are included in the simulation, offering a self-consistent approach for analyzing and optimizing the laser operation. It is shown that at low temperatures, photon emission and absorption can govern the carrier transport in such devices. Furthermore, we find that photon-induced scattering can strongly affect the kinetic electron distributions within the subbands. Our results are validated against available experimental data.

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