Abstract
Radiation spectrum broadening upon the generation of the second harmonic in nonlinear crystal is studied. Spectrum broadening is ensured in one or two nonlinear KDP crystals detuned by the phase matching angle or with chirped pulses of pump radiation. Possibility of the spectrum width doubling of the second harmonic is shown.
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Funding
This work was supported by the Russian Foundation for Basic Research, project nos. 19-48-700016r-Siberia, 18-08-00383, and 18-08-00407 (our study with the pumping of a nonlinear crystal by radiation extracted from compressor); and by the Russian Science Foundation, project no. 18-19-00009 (our study with pumping by a 100-ps pulse).
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Translated by A. Ivanov
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Alekseev, S.V., Ivanov, N.G. & Losev, V.F. Spectral Contour Broadening upon the Generation of the Second Harmonic. Bull. Russ. Acad. Sci. Phys. 84, 751–754 (2020). https://doi.org/10.3103/S1062873820070047
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DOI: https://doi.org/10.3103/S1062873820070047