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Interaction of ultraintense laser pulses with an underdense, preformed plasma channel

Abstract : We report on experimental results regarding the propagation of ultraintense laser pulses in a preformed plasma channel. In this experiment, the long (4-mm) fully ionized plasma channel created by the amplified spontaneous emission (ASE) was measured by interferometry before and after the propagation of the short laser pulse. Forward spectra show a cascade of Raman satellites, which merge with one another when the laser power was increased up to critical power for relativistic self-focusing Pc. The number of filaments measured by interferometry increases when the laser power increases. High conversion efficiency (≈10%) of second harmonic generation was observed in the interaction
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https://hal.archives-ouvertes.fr/hal-01165271
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Submitted on : Thursday, June 18, 2015 - 4:57:07 PM
Last modification on : Friday, March 5, 2021 - 2:59:12 PM

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Victor Malka, Jérôme Faure, J.R. Marques, François Amiranoff, Christian Courtois, et al.. Interaction of ultraintense laser pulses with an underdense, preformed plasma channel. IEEE Transactions on Plasma Science, Institute of Electrical and Electronics Engineers, 2000, 28 (4), pp.1078. ⟨10.1109/27.893292⟩. ⟨hal-01165271⟩

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