Controlling femtosecond-laser-driven shock-waves in hot, dense plasma

Abstract

Ultrafast pump-probe reflectometry and Doppler spectrometry of a supercritical density plasma layer excited by 1017-1018 W/cm2 intensity, 30 fs, and 800 nm laser pulses reveal the interplay of laser intensity contrast and inward shock wave strength. The inward shock wave velocity increases with an increase in laser intensity contrast. This trend is supported by simulations as well as by a separate independent experiment employing an external prepulse to control the inward motion of the shock wave. This kind of cost-effective control of shock wave strength using femtosecond pulses could open up new applications in medicine, science, and engineering.

Metadata

Authors/Creators:	Adak, Amitava Singh, Prashant Kumar Blackman, David R. Lad, Amit D. Chatterjee, Gourab Pasley, John https://orcid.org/0000-0001-5832-8285 Robinson, A. P.L. Ravindra Kumar, G.
Copyright, Publisher and Additional Information:	This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details
Dates:	Accepted: 8 June 2017 Published: 27 June 2017
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Physics (York)
Depositing User:	Pure (York)
Date Deposited:	16 Aug 2017 08:15
Last Modified:	06 Dec 2023 12:00
Published Version:	https://doi.org/10.1063/1.4990059
Status:	Published
Refereed:	Yes
Identification Number:	https://doi.org/10.1063/1.4990059
Related URLs:	http://www.scopus.com/inward/record.url?...

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Controlling femtosecond-laser-driven shock-waves in hot, dense plasma

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