Abstract
The features of femtosecond laser pulse reflection from a plasma target of near-critical density were analytically and numerically studied in a wide range of laser pulse intensities and durations. Based on analytical calculations, it is shown that the pulse reflectance at a constant intensity decreases with decreasing pulse duration. Based of numerical simulation results, it is shown that, as a superintense femtosecond laser pulse is incident on a plasma layer with a concentration close to the critical one, a quasi-periodic electron-density structure is formed in the plasma bulk, which can both increase and decrease the the laser pulse reflectance.
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Original Russian Text © S.N. Andreev, Yu.I. Eremeicheva, V.P. Tarakanov, 2013, published in Kratkie Soobshcheniya po Fizike, 2013, Vol. 40, No. 8, pp. 25–32.
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Andreev, S.N., Eremeicheva, Y.I. & Tarakanov, V.P. Features of femtosecond laser pulse reflection from a sharp boundary of relativistic laser plasma. Bull. Lebedev Phys. Inst. 40, 225–229 (2013). https://doi.org/10.3103/S1068335613080034
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DOI: https://doi.org/10.3103/S1068335613080034