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VOLUME 42 (1985) | ISSUE 4 | PAGE 134
Phonoriton modification of the polariton dispersion curve in CdS
Experiments have been carried out on CdS semiconductors [T = 5 K) in a region of a small exciton-absorption coefficient in an intense pump light wave. The transmission coefficient is observed to decrease at a frequency higher than the pump frequency by an amount equivalent to an optical phonon. This change is probably due to a phonoriton modification of the dispersion curve of polaritons under the influence of the intense pump.