Experimental investigation on the origins of plasma-induced incoherence

Heidi Bandulet; Christine Labaune; Julien Fuchs; Pierre Michel; Sylvie Depierreux

doi:10.1117/12.537109

12 December 2003 Experimental investigation on the origins of plasma-induced incoherence

Heidi Bandulet, Christine Labaune, Julien Fuchs, Pierre Michel, Sylvie Depierreux

Proceedings Volume 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter; (2003) https://doi.org/10.1117/12.537109
Event: ECLIM 2002: 27th European conference on Laser Interaction with Matter, 2002, Moscow, Russian Federation

Abstract

We present some results of a recent experiment performed on LULI's nanosecond laser chain which puts light on the underlying mechanisms involved in plasma-induced incoherence. Following theoretical interpretation for this new-found phenomenon, we set-up a Thomson scattering diagnostic off ion acoustic waves having small k-vectors transverse to the interaction beam. Such waves would be the product of the interplay between non-linear processes undergone by an RPP-smoothed laser beam propagating through an under-dense plasma. We have observed ion acoustic waves with k-vectors ranging from 0.4k₀ to 0.6k₀ located near the plasma's summit and occurring at the top of the interaction laser pulse. Good correlation between Thomson scattering spectra and other PII signatures, namely the redshift of the transmitted light, when varying interaction conditions strongly supports our first assumptions pertaining to the ion waves' participation in PII.

Citation Download Citation

Heidi Bandulet, Christine Labaune, Julien Fuchs, Pierre Michel, and Sylvie Depierreux "Experimental investigation on the origins of plasma-induced incoherence", Proc. SPIE 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter, (12 December 2003); https://doi.org/10.1117/12.537109

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available