Toward compact and ultra-intense laser-based soft x-ray lasers

被引：4

作者：

Sebban, S. ^{[1
]}

Depresseux, A. ^{[1
]}

Oliva, E. ^{[2
,3
]}

Gautier, J. ^{[1
]}

Tissandier, F. ^{[1
]}

Nejdl, J. ^{[4
]}

Kozlova, M. ^{[4
]}

Maynard, G. ^{[2
]}

Goddet, J. P. ^{[1
]}

Tafzi, A. ^{[1
]}

Lifschitz, A. ^{[1
]}

Kim, H. T. ^{[5
,6
]}

Jacquemot, S. ^{[7
,8
]}

Rousseau, P. ^{[1
]}

Zeitoun, P. ^{[1
]}

Rousse, A. ^{[1
]}

机构：

[1] Univ Paris Saclay, Ecole Polytech, CNRS, ENSTA,LOA, F-91762 Palaiseau, France

[2] Univ Paris Sud 11, CNRS, Lab Phys Gaz & Plasmas, F-91405 Orsay, France

[3] Univ Politecn Madrid, E-28006 Madrid, Spain

[4] ASCR, Inst Phys, ELI Beamlines Project, Slovance 2, Prague 18221 8, Czech Republic

[5] GIST, Adv Photon Res Inst, Gwangju 500712, South Korea

[6] IBS, Ctr Relativist Laser Sci, Gwangju 500712, South Korea

[7] Ecole Polytech, Lab Utilisat Lasers Intenses, F-91128 Palaiseau, France

[8] Commissariat Energie Atom & Energies Alternat, DIF, DAM, F-91297 Arpajon, France

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2018年 / 60卷 / 01期

关键词：

XUV lasers; ultrafast laser; coherent radiation; optical field ionized plasmas; COHERENT; BEAM;

D O I：

10.1088/1361-6587/aa8aaf

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report here recent work on an optical field ionized (OFI), high-order harmonic-seeded EUV laser. The amplifying medium is a plasma of nickel-like krypton obtained by OFI when focusing a 1 J, 30 fs, circularly-polarized, infrared pulse into a krypton-filled gas cell or krypton gas jet. The lasing transition is the 3d(9)4d (J = 0) -> 3d(9)4p (J = 1) transition of Ni-like krypton ions at 32.8 nm and is pumped by collisions with hot electrons. The gain dynamics was probed by seeding the amplifier with a high-order harmonic pulse at different delays. The gain duration monotonically decreased from 7 ps to an unprecedented shortness of 450 fs full width at half-maximum as the amplification peak rose from 150 to 1200 with an increase of the plasma density from 3 x 10(18) to 1.2 x 10(20) cm(-3). The integrated energy of the EUV laser pulse was also measured, and found to be around 2 mu J. It is to be noted that in the ASE mode, longer amplifiers were achieved (up to 2 cm), yielding EUV outputs up to 14 mu J.

引用

页数：9

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