High-Gain Harmonic-Generation Free-Electron Laser Seeded by Harmonics Generated in Gas

被引：70

作者：

Labat, M. ^{[1
,9
]}

Bellaveglia, M. ^{[2
]}

Bougeard, M. ^{[11
]}

Carre, B. ^{[11
]}

Ciocci, F. ^{[1
]}

Chiadroni, E. ^{[2
]}

Cianchi, A. ^{[2
,8
]}

Couprie, M. E. ^{[9
]}

Cultrera, L. ^{[2
]}

Del Franco, M. ^{[1
]}

Di Pirro, G. ^{[2
]}

Drago, A. ^{[2
]}

Ferrario, M. ^{[2
]}

Filippetto, D. ^{[2
]}

Frassetto, F. ^{[6
]}

Gallo, A. ^{[2
]}

Garzella, D. ^{[11
]}

Gatti, G. ^{[2
]}

Giannessi, L. ^{[1
]}

Lambert, G. ^{[12
]}

Mostacci, A. ^{[5
]}

Petralia, A. ^{[1
]}

Petrillo, V. ^{[3
,4
]}

Poletto, L. ^{[6
]}

Quattromini, M. ^{[1
]}

Rau, J. V. ^{[7
]}

Ronsivalle, C. ^{[1
]}

Sabia, E. ^{[1
]}

Serluca, M. ^{[5
]}

Spassovsky, I. ^{[1
]}

Surrenti, V. ^{[1
]}

Vaccarezza, C. ^{[2
]}

Vicario, C. ^{[10
]}

机构：

[1] ENEA CR Frascati, I-00044 Frascati, Roma, Italy

[2] INFN LNF, I-00044 Frascati, Roma, Italy

[3] Univ Milan, I-20133 Milan, Italy

[4] INFN Mi, I-20133 Milan, Italy

[5] Univ Roma La Sapienza, I-00185 Rome, Italy

[6] CNR IFN, I-35131 Padua, Italy

[7] ISM CNR, I-00133 Rome, Italy

[8] Univ Roma Tor Vergata, I-00133 Rome, Italy

[9] SOLEIL, F-91192 Gif Sur Yvette, France

[10] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[11] CEA Saclay, DSM DRECAM SPCSI, F-91191 Gif Sur Yvette, France

[12] LOA ENSTA, UMR 7639, Palaiseau, France

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 22期

关键词：

HIGH-ORDER HARMONICS; EXTREME-ULTRAVIOLET; OPTICAL KLYSTRON; RARE-GASES; X-RAYS; RADIATION; INTENSE; NOISE; FEL; VUV;

D O I：

10.1103/PhysRevLett.107.224801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The injection of a seed in a free-electron laser (FEL) amplifier reduces the saturation length and improves the longitudinal coherence. A cascaded FEL, operating in the high-gain harmonic-generation regime, allows us to extend the beneficial effects of the seed to shorter wavelengths. We report on the first operation of a high-gain harmonic-generation free-electron laser, seeded with harmonics generated in gas. The third harmonics of a Ti:sapphire laser, generated in a gas cell, has been amplified and up-converted to its second harmonic (lambda(rad) 133 nm) in a FEL cascaded configuration based on a variable number of modulators and radiators. We studied the transition between coherent harmonic generation and super-radiant regime, optimizing the laser performances with respect to the number of modulators and radiators.

引用

页数：5

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