Current challenges for the development of efficient short wavelength mid infrared quantum cascade lasers

PEREIRA, Mauro and COCKBURN, John W. (2008). Current challenges for the development of efficient short wavelength mid infrared quantum cascade lasers. In: Numerical Simulation of Optoelectronic Devices, 2008. NUSOD '08. International Conference on. IEEE, 114-116. [Book Section]

Abstract
A nonequilibrium Keldysh Greens functions formalism is used to calculate the linewidth enhancement factor (alpha-factor) of a quantum cascade laser under operating conditions.
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