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  1. No Access

    Article

    A method for obtaining inverted images

    A method for obtaining a brightness-inverted image of opaque objects is described. The factor of conversion of images from negative into positive was up to 350% relative to the average intensity level of the i...

    E. L. Bubis, S. A. Gusev, V. V. Lozhkarev… in Instruments and Experimental Techniques (2014)

  2. No Access

    Article

    Some Features of Light Scattering in Optically Anisotropic Media

    Experimental results on observation of the light scattering in optically anisotropic transparent media are presented. During observation at angles close to the normal to the light beam in the crystal, a period...

    E. L. Bubis, M. A. Novikov, V. V. Lozhkarev… in Radiophysics and Quantum Electronics (2014)

  3. No Access

    Article

    100-TW femtosecond laser based on parametric amplification

    In experiments on the parametrical amplification of femtosecond pulses in wide-aperture DKDP crystals, a power of more than 100 TW has been reached, which is much higher than the record level achieved in such ...

    V. V. Lozhkarev, S. G. Garanin, R. R. Gerke… in Journal of Experimental and Theoretical Ph… (2005)

  4. No Access

    Article

    New scheme of a petawatt laser based on nondegenerate parametric amplification of chirped pulses in DKDP crystals

    The ultra-broadband phase matching was experimentally observed in a DKDP crystal upon parametric amplification of signal radiation with a wavelength of 911 nm in a pump field with a wavelength of 527 nm. The o...

    N. F. Andreev, V. I. Bespalov… in Journal of Experimental and Theoretical Ph… (2004)

  5. No Access

    Article

    Ionization spectrum transformation and compression of powerful femtosecond laser pulses in experiments on the propagation in gas-filled dielectric capillaries

    The propagation of an intense (I≤106 W/cm2) femtosecond laser radiation with a duration of ∼100 fs through gas-filled dielectric capillaries was studied. The radiation with a power up to 0.2 TW propagates along t...

    A. A. Babin, D. V. Kartashov, A. M. Kiselev… in Journal of Experimental and Theoretical Ph… (2002)

  6. No Access

    Article

    Ionization spectrum broadening and frequency blue-shift of high-intensity femtosecond laser pulses in gas-filled capillary tubes

    . We report on the experimental and theoretical study of spectrum transformation and frequency blue-shift of femtosecond laser pulses with intensities up to 2×1016 W/cm2, propagating in glass capillary tubes unde...

    A.A. Babin, D.V. Kartashov, A.M. Kiselev, V.V. Lozhkarev… in Applied Physics B (2002)