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VOLUME 54 (1991) | ISSUE 7 | PAGE 361
Optical detection of cyclotron resonance at a GaAs-GaAlAs heterojunction
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.