Abstract
The round-trip surface-wave domains are generated on the basal plane of CdS by exciting a surface wave externally. The effect of a transparent adhesive tape and observation by an optical probe method prove these domains to be surface-wave domains. The domain properties are controlled by the excited wave. That is, the excited domain has a narrower spectrum width than the spontaneous domain, and the fmax of the excited domain shifts to the first subharmonic frequency of the excited wave regardless of the carrier density of the sample. The excited wave, the strain of which is greater than 10-5, amplifies surface waves having frequencies near its first subharmonic by the nonlinear interaction through space charges. Then these waves are amplified further by the interaction with drifting electrons, and build up the full-grown excited domain.
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