This article is cited in 8 papers

Special issue 'Extreme light fields and their interaction with matter'

Nonlinear interferometer for increasing the contrast ratio of intense laser pulses

E. A. Khazanov, S. Yu. Mironov

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

Abstract: The possibility is shown for increasing the contrast ratio of intense (TW cm^-2) femtosecond laser pulses by using a nonlinear Mach–Zehnder interferometer, and also under the conditions of cascade quadratic nonlinearity in two tandem uniaxial crystals detuned from the matching direction to opposite sides. In both the cases, the peak intensity slightly falls (by ~10%) and with additional chirp mirrors may even exceed the initial intensity.

Keywords: nonlinear Mach–Zehnder interferometer, terawatt laser pulses, contrast ratio.

Received: 19.02.2019

 English version: Quantum Electronics, 2019, 49:4, 337–343

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