Towards ultrahigh-contrast ultraintense laser pulses—complete characterization of a double plasma-mirror pulse cleaner

Abstract : The effects of small amounts of energy delivered at times before the peak intensity of ultrahigh-intensity ultrafast-laser pulses have been a major obstacle to the goal of studying the interaction of ultraintense light with solids for more than two decades now. We describe implementation of a practical double-plasma-mirror pulse cleaner, built into a f = 10 m null telescope and added as a standard beamline feature of a 100 TW laser system for ultraintense laser-matter interaction. Our measurements allow us to infer a pulse-height contrast of 5×10^11—the highest contrast generated to date—while preserving ∼ 50% of the laser intensity and maintaining excellent focusability of the delivered beam. We present a complete optical characterization, comparing empirical results and numerical modeling of a double-plasma-mirror system.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00521904
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Submitted on : Tuesday, September 28, 2010 - 10:32:18 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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T. Wittmann, Jean-Paul Geindre, P. Audebert, R. S. Marjoribanks, Jean-Philippe Rousseau, et al.. Towards ultrahigh-contrast ultraintense laser pulses—complete characterization of a double plasma-mirror pulse cleaner. Review of Scientific Instruments, American Institute of Physics, 2006, 77 (8), pp.083109. ⟨10.1063/1.2234850⟩. ⟨hal-00521904⟩

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