Role of the plasma scale length in the harmonic generation from solid targets

被引：150

作者：

Zepf, M

Tsakiris, GD

Pretzler, G

Watts, I

Chambers, DM

Norreys, PA

Andiel, U

Dangor, AE

Eidmann, K

Gahn, C

Machacek, A

Wark, JS

Witte, K

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England

[2] Max Planck Inst Quantenopt, D-85748 Garching, Germany

[3] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[4] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL REVIEW E | 1998年 / 58卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.58.R5253

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 have investigated the generation of high harmonics from the interaction of 150 fsec, 790 nm, and 395 nm laser pulses with solid targets. Experiments are presented that demonstrate a strong dependence of the conversion efficiency on the temporal pulse shape and the resulting density scale length (L/lambda) of the preformed plasma. The highest conversion efficiencies are achieved for short density scale lengths (L/lambda less than or equal to 0.4), which result from high contrast ratio pulse interactions. [S1063-651X(98)50211-5].

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页码：R5253 / R5256

页数：4

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