Semiconductor Cyclotron Resonance, Transport and Surface Phenomena

The use of submillimeter waves in cyclotron resonance experiments with semiconductors has the advantage that due to the higher frequency (in comparison with microwaves) either the ωt (ω = cyclotron frequency eB/m, t = relaxation time) values can be increased or materials with lower mobility can be explored. Usually transmission-type spectrometers in the Faraday configuration with molecular lasers are employed. Due to the small wavelengths a number of problems arise which must be kept in mind.