Abstract
An investigation was made of the laser emission spectra of platelet CdS, Znx, Cd1–xS, and CdS1–xSex, single crystals and acicular CdS single crystals at T=4.2, 77, and 300 °K. Lasing developed in partial resonators (rectangular insulating microboxes or microprisms) and the emission consisted of total-internal-reflection modes characterized by the highest Q factor. Radiation emerged in vacuum as a result of intermode scattering of photons (without a change in the frequency) out of the total-internal-reflection modes into modes with lower Q factors, which could be emitted.
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