Optically pumped intersubband spectroscopy in AlGaAs/GaAs multi-quantum wells: effects of compensation
Abstract
Measurements of intersubband absorption and cyclotron resonance on lightly-doped GaAs/AlGaAs quantum-well structures with a sensitive optical pumping technique show that the observed intersubband transitions are due to free electrons and that the large photo-generated excess free electron density is due to compensation by acceptors.
- Publication:
-
Superlattices and Microstructures
- Pub Date:
- 1990
- DOI:
- 10.1016/0749-6036(90)90273-A
- Bibcode:
- 1990SuMi....8...47L