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A pulsed two-channel Nd:YAG laser with an improved spatial structure of IR radiation for prompt recording and development of photothermoplastic holograms

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Abstract

A two-channel Nd:YAG laser for high-speed recording and development of photothermoplastic holograms has been created. In two independent channels, the laser generates monopulse radiation of nanosecond duration (30 ns) at the second harmonic frequency (λ 2 = 0.532 μm) and IR radiation (λ 1 = 1.064 μm) produced by quasi-stationary free-running lasing of millisecond duration (4 ms). The radiations with wavelengths λ 2 and λ 1 are used, respectively, for exposure and development of photothermoplastic holograms. A method based on the use of a passive resonator is proposed to improve the spatial structure of IR radiation during lasing.

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Authors and Affiliations

  1. Institute of Electronics, National Academy of Sciences of Belarus, Logoiskii trakt 22, Minsk, 220090, Belarus

    S. N. Zdanovich

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  1. S. N. Zdanovich
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Original Russian Text © S.N. Zdanovich, 2007, published in Pribory i Tekhnika Eksperimenta, 2007, No. 2, pp. 116–121.

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Zdanovich, S.N. A pulsed two-channel Nd:YAG laser with an improved spatial structure of IR radiation for prompt recording and development of photothermoplastic holograms. Instrum Exp Tech 50, 253–257 (2007). https://doi.org/10.1134/S0020441207020169

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  • DOI: https://doi.org/10.1134/S0020441207020169

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