Observation of Stark shifts in quantum well intersubband transitions
- 16 March 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 50 (11), 685-687
- https://doi.org/10.1063/1.98066
Abstract
We have observed Stark shifts of quantum well intersubband transitions in a perpendicular electric field. Two samples consisting of 100 and 120 Å GaAs quantum wells separated by 350 Å AlGaAs barriers showed optical absorption peaks at 11.1 and 13.9 μm, respectively. In an electric field of 36 kV/cm, the 13.9 μm peak shifted to 13.7 μm and the 11.1 μm shifted to 11.0 μm, in good agreement with theoretical calculations. These tunable transitions can be applied to high-speed infrared light modulators.This publication has 15 references indexed in Scilit:
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