Influence of the resonant screening on the photon-drag effect connecte
d with the resonant intersubband transitions in quantum well systems i
s discussed theoretically employing the self-consistent field method.
The results obtained indicate that in systems where the momentum relax
ation times for the ground and excited subband are different the photo
n-drag current can be written as a sum of two terms. These terms are a
ffected by the resonant screening in a different way. (C) 1997 Elsevie
r Science Ltd.