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The Influence of Collisions on the Franz‐Keldysh Effect
Author(s) -
Enderlein R.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670200128
Subject(s) - attenuation coefficient , scattering , absorption (acoustics) , electron , physics , condensed matter physics , impurity , photon , atomic physics , phonon , exponential function , quantum electrodynamics , optics , quantum mechanics , mathematical analysis , mathematics
A study is made of the effect fo electron‐phonon and electron‐impurity scattering on the field‐induced change in the optical interband absorption for photon energies near the direct band gap ℏ ω 0 . It is found that in the presence of collisions the exponential tail of the absorption coefficient at ω < ω 0 oscillates and that the oscillations at ω > ω 0 are damped. This damping seems to be in quantitative agreement with the experimental results of Hamakawa, Germano and Handler [4].