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Studying the Parameters of Second Harmonic Generation under the Conditions of a Weakly Chirped Pulse

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Results are presented from studying the parameters of second harmonic radiation under conditions of the transformation of a positively and negatively chirped pulse of fundamental frequency. It is shown that when the duration of a bandwidth-limited pulse (50 fs) is increased to 630 fs and beyond, the distribution of second harmonic intensity becomes close to Gaussian. The efficiency of second harmonic generation with duration of 2.5 ps falls from 38.69 to 4%, and the quality of the second harmonic improves until it becomes equal to М2 = 1.3. Substantial modulation of the amplitude and the narrowing of the second harmonic spectrum are observed upon negative chirping of the fundamental frequency.

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ACKNOWLEDGMENTS

This work was supported by the Russian Foundation for Basic Research, project nos. 18-08-00407, 18р08-00383, and 16-08-00204.

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Authors and Affiliations

  1. Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia

    S. V. Alekseev, M. V. Ivanov, N. G. Ivanov & V. F. Losev

Authors
  1. S. V. Alekseev
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  2. M. V. Ivanov
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  3. N. G. Ivanov
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  4. V. F. Losev
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Corresponding author

Correspondence to S. V. Alekseev.

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Translated by M. Astrov

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Alekseev, S.V., Ivanov, M.V., Ivanov, N.G. et al. Studying the Parameters of Second Harmonic Generation under the Conditions of a Weakly Chirped Pulse. Bull. Russ. Acad. Sci. Phys. 83, 265–268 (2019). https://doi.org/10.3103/S1062873819030031

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  • DOI: https://doi.org/10.3103/S1062873819030031

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