Magneto-optics of a quasi-zero-dimensional electron gas
- 10 July 1989
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 55 (2) , 168-170
- https://doi.org/10.1063/1.102132
Abstract
We have investigated theoretically and experimentally the energy levels and allowed optical transitions with energies ΔE of a quasi-zero-dimensional (Q0D) electron gas in a magnetic field B. Using a two-dimensional harmonic confining potential with oscillator frequency ω0, the theory predicts two values for ΔE. The resonance position in the magnetotransmission spectra from the Q0D system realized on a grid-gate GaAs/AlGaAs heterostructure, depends strongly on the 2D confining potential induced by the gate voltage Vg and, when Vg=−0.5 and −1.5 V, agrees with ΔE calculated with ℏω0=1.5 and 2.8 meV, respectively.Keywords
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