Abstract
Cyclotron resonance experiments in a perpendicular magnetic field are reported on a modulated two-dimensional electron gas inserted in a lateral superlattice grown on a GaAs vicinal substrate. Significant deviations of the cyclotron energy from its behaviour in an unmodulated two-dimensional electron gas are observed. It is shown that a cyclotron-resonance-intersubband coupling induced by the tilted superlattice potential contributes to this behaviour.
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