FIELD: optical instrumentation engineering. SUBSTANCE: device for holographic recording of information on photothermoplastic medium is supplemented with two-frequency polarizer ensuring separation of p- and s-components of monochromatic laser radiation and frequency doubler. Device has apart from main heat-radiating channel additional heat-radiating channel which enables medium to be heated during time when free generation with s-component is absent and there is not yet IR radiation in main heat-radiating channel after exposure. EFFECT: expanded functional capabilities of device. 1 dwg
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