TY - GEN
T1 - An intense kHZ and aberration-free two-colour high harmonic source for seeding FEL and XRL
AU - Lambert, G.
AU - Gautier, J.
AU - Hauri, C. P.
AU - Tissandier, F.
AU - Valentin, C.
AU - Sardinha, A. Barszczak
AU - Fajardo, M.
AU - Marchenko, T.
AU - Goddet, J. Ph
AU - Ribiere, M.
AU - Rey, G.
AU - Sebban, S.
AU - Zeitoun, Ph
N1 - Publisher Copyright:
© Canopus Academic Publishing Limited 2011.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - Free-electron lasers (FEL) and soft X-ray lasers (SXRL) have been recently evolving very fast in the extreme-ultraviolet to soft X-ray region. Once seeded with high harmonics (HH), these light sources deliver amplified emissions with properties which are, for most of them, directly linked to the injected HH beam, e.g. the ultrashort pulse duration for FEL and the high temporal and spatial degree of coherence for both. Here we present a detailed experimental study of a kHz two-colour (fundamental + second harmonic) HH generation and investigate its potential as a suitable evolution of the actual seeding sources. It turns out that this source (both odd and even harmonics) is highly tuneable, and delivers intense radiations with only one order of magnitude difference in the photon yield from 65 nm to 13 nm. We also observed an astonishing “aberration-free” character of these harmonics (aberration below λ/17 rms, λ=44 nm). Then, the implementation of this technique on seeded FEL and XRL would allow amplification to be achieved at wavelengths shorter than previously accessible.
AB - Free-electron lasers (FEL) and soft X-ray lasers (SXRL) have been recently evolving very fast in the extreme-ultraviolet to soft X-ray region. Once seeded with high harmonics (HH), these light sources deliver amplified emissions with properties which are, for most of them, directly linked to the injected HH beam, e.g. the ultrashort pulse duration for FEL and the high temporal and spatial degree of coherence for both. Here we present a detailed experimental study of a kHz two-colour (fundamental + second harmonic) HH generation and investigate its potential as a suitable evolution of the actual seeding sources. It turns out that this source (both odd and even harmonics) is highly tuneable, and delivers intense radiations with only one order of magnitude difference in the photon yield from 65 nm to 13 nm. We also observed an astonishing “aberration-free” character of these harmonics (aberration below λ/17 rms, λ=44 nm). Then, the implementation of this technique on seeded FEL and XRL would allow amplification to be achieved at wavelengths shorter than previously accessible.
UR - https://www.scopus.com/pages/publications/85033604145
U2 - 10.1007/978-94-007-1186-0_21
DO - 10.1007/978-94-007-1186-0_21
M3 - Conference contribution
AN - SCOPUS:85033604145
SN - 9789400711853
T3 - Springer Proceedings in Physics
SP - 203
EP - 208
BT - X-Ray Lasers 2010 - Proceedings of the 12th International Conference on X-Ray Lasers
A2 - Lee, Jongmin
A2 - Janulewicz, Karol A.
A2 - Nam, Chang Hee
PB - Springer Science and Business Media, LLC
T2 - 12th International Conference on X-Ray Lasers, 2010
Y2 - 30 May 2010 through 4 June 2010
ER -