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Experimental diagnostic module for ultrafast combined interferometry of the processes of interaction of ultrashort laser pulses with condensed media in vacuum

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Abstract

An experimental diagnostic module based on a femtosecond laser system (τ0.5 ∼ 45-70 fs, 7n = 266, 400, and 800 nm) and the experimental technique for ultrafast combined interferometric investigation of the interaction of ultrashort laser pulses with condensed media in vacuum are described. A combined interferometric microscope built according to the Michelson and Mach-Zehnder schemes allows studies of the dynamics of optico-thermophysical and gas-dynamic proc esses at the surface of a target (the crater depth and diameter, optical properties) and in a plasma plume (velocity of expanding particles, electron density, optical characteristics) at a time resolution of 5 - 10-14 s in the range of delays 10-13-10-7 susing two probing wavelengths (7n = 400, 800 nm) in vacuum (to 5 - 10-5 mbar). Setting a mechanical shutter in the reference arm of the interferometer also allows obtaining of shadow photographs without changing the optical scheme.

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References

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Authors and Affiliations

  1. Bauman Moscow State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, Russia

    E. Yu. Loktionov & Yu. Yu. Protasov

  2. Joint Institute of High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13, str. 2, Moscow, 125412, Russia

    A. V. Ovchinnikov & D. S. Sitnikov

Authors
  1. E. Yu. Loktionov
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  2. A. V. Ovchinnikov
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  3. Yu. Yu. Protasov
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  4. D. S. Sitnikov
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Corresponding author

Correspondence to E. Yu. Loktionov.

Additional information

Original Russian Text © E.Yu. Loktionov, A.V. Ovchinnikov, Yu.Yu. Protasov, D.S. Sitnikov, 2010, published in Pribory i Tekhnika Eksperimenta, 2010, No. 3, pp. 104–110.

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Loktionov, E.Y., Ovchinnikov, A.V., Protasov, Y.Y. et al. Experimental diagnostic module for ultrafast combined interferometry of the processes of interaction of ultrashort laser pulses with condensed media in vacuum. Instrum Exp Tech 53, 416–422 (2010). https://doi.org/10.1134/S0020441210030164

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  • DOI: https://doi.org/10.1134/S0020441210030164

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