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

0479203 - FZÚ 2018 RIV GB eng J - Článek v odborném periodiku
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
Grant CEP: GA MŠMT EF15_008/0000162; GA MŠMT LQ1606
GRANT EU: European Commission(XE) 654148 - LASERLAB-EUROPE
Grant ostatní: ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
Institucionální podpora: RVO:68378271
Klíčová slova: laser-pulse amplification * beams * wave
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 4.122, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0275206