Broadening in the absorption line through a redistribution of the density of states

Kevin R. Lefebvre; A. F. M. Anwar

doi:10.1117/12.316649

7 July 1998 Broadening in the absorption line through a redistribution of the density of states

Kevin R. Lefebvre, A. F. M. Anwar

Proceedings Volume 3283, Physics and Simulation of Optoelectronic Devices VI; (1998) https://doi.org/10.1117/12.316649
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Experimental responsivity data for a two quantum well QWIP is explained using electric field induced redistribution of density of states. The redistribution of density of states is introduced in the calculation of electron transition rate. It is observed that though the eigen energies of the individual wells are uncorrelated, there exists a strong correlation in the absorption coefficient of the individual quantum wells of a multiple quantum well systems. This redistribution of the density of states is considered as an additional source of broadening in the absorption spectrum of a QWIP.

Citation Download Citation

Kevin R. Lefebvre and A. F. M. Anwar "Broadening in the absorption line through a redistribution of the density of states", Proc. SPIE 3283, Physics and Simulation of Optoelectronic Devices VI, (7 July 1998); https://doi.org/10.1117/12.316649

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