An ultra-high gain and efficient amplifier based on Raman amplification in plasma

0479203 - FZÚ 2018 RIV GB eng J - Journal Article
Vieux, Grégory - Cipiccia, S. - Grant, D.W. - Lemos, N. - Grant, P. - Ciocarlan, C. - Ersfeld, B. - Hur, M.S. - Lepipas, P. - Manahan, G.G. - Raj, G. - Reboredo Gil, D. - Subiel, A. - Welsh, G.H. - Wiggins, S.M. - Yoffe, S.R. - Farmer, J.P. - Aniculaesei, C. - Brunetti, E. - Yang, X. - Heathcote, R. - Nersisyan, G. - Lewis, C. L. S. - Pukhov, A. - Dias, J.M. - Jaroszynski, D.A.
An ultra-high gain and efficient amplifier based on Raman amplification in plasma.
Scientific Reports. Roč. 7, May (2017), s. 1-7, č. článku 2399. ISSN 2045-2322. E-ISSN 2045-2322
R&D Projects: GA MŠMT EF15_008/0000162; GA MŠMT LQ1606
EU Projects: European Commission(XE) 654148 - LASERLAB-EUROPE
Grant - others:ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
Institutional support: RVO:68378271
Keywords : laser-pulse amplification * beams * wave
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 4.122, year: 2017

Raman amplification arising from the excitation of a density echelon in plasma could lead to amplifiers that significantly exceed current power limits of conventional laser media. Here we show that 1-100 J pump pulses can amplify picojoule seed pulses to nearly joule level. The extremely high gain also leads to significant amplification of backscattered radiation from „noise”, arising from stochastic plasma fluctuations that competes with externally injected seed pulses, which are amplified to similar levels at the highest pump energies.
Permanent Link: http://hdl.handle.net/11104/0275206