Optical detection of cyclotron resonance at a GaAs-GaAlAs heterojunction
Gubarev S. I., Dremin A. A., Kukushkin I. V., Malyavkin A. V., Tyazhlov M. G., von Klitzing K.
A signal representing an optically detectable cyclotron resonance has been observed in the luminescence spectra of a GaAs-GaAlAs heterojunction. The signal arises because of an increase in the number of electrons in the upper quantum-well subband upon saturation of the cyclotron resonance.