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2000
Journal Article
Title
Direct Observation of dynamical screening of the intersubband resonance
Other Title
Direkte Beobachtung der dynamischen Abschirmung von Untersubband-Resonanzen
Abstract
We have studied the intersubband resonance of GaAs, AlGaAs multi-quantum well systems by comparing photon drag and absorption spectra. The peak absorption at room temperature is found to be blueshifted from the photon drag resonance by as much as 33 cm(exp -1). We argue that this difference gives directly the depolarization shift.
Author(s)