This article is cited in 5 papers

Extreme light fields and their applications

Enhancement of temporal contrast of high-power laser pulses in an anisotropic medium with cubic nonlinearity

M. S. Kuz'mina, E. A. Khazanov

Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod

Abstract: We consider the methods for enhancing the temporal contrast of super-high-power laser pulses, based on the conversion of radiation polarisation in a medium with cubic nonlinearity. For a medium with weak birefringence and isotropic nonlinearity, we propose a new scheme to enhance the temporal contrast. For a medium with anisotropic nonlinearity, the efficiency of the temporal contrast optimisation is shown to depend not only on the spatial orientation of the crystal and B-integral, but also on the type of the crystal lattice symmetry.

Keywords: temporal contrast, femtosecond laser pulses, anisotropic medium with cubic nonlinearity, B-integral.

PACS: 42.65.An, 42.65.Re, 42.60.Jf

Received: 29.01.2015
Revised: 10.02.2015

 English version: Quantum Electronics, 2015, 45:5, 426–433

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