Laser-driven platform for generation and characterization of strong quasi-static magnetic fields

被引：131

作者：

Santos, J. J. ^{[1
]}

Bailly-Grandvaux, M. ^{[1
]}

Giuffrida, L. ^{[1
]}

Forestier-Colleoni, P. ^{[1
]}

Fujioka, S. ^{[2
]}

Zhang, Z. ^{[2
]}

Korneev, P. ^{[1
,3
]}

Bouillaud, R. ^{[1
]}

Dorard, S. ^{[4
]}

Batani, D. ^{[1
]}

Chevrot, M. ^{[4
]}

Cross, J. E. ^{[5
]}

Crowston, R. ^{[6
]}

Dubois, J-L ^{[7
]}

Gazave, J. ^{[7
]}

Gregori, G. ^{[5
]}

d'Humieres, E. ^{[1
]}

Hulin, S. ^{[1
]}

Ishihara, K. ^{[2
]}

Kojima, S. ^{[2
]}

Loyez, E. ^{[4
]}

Marques, J-R ^{[4
]}

Morace, A. ^{[2
]}

Nicolai, P. ^{[1
]}

Peyrusse, O. ^{[1
]}

Poye, A. ^{[1
]}

Raffestin, D. ^{[7
]}

Ribolzi, J. ^{[7
]}

Roth, M. ^{[8
]}

Schaumann, G. ^{[8
]}

Serres, F. ^{[4
]}

Tikhonchuk, V. T. ^{[1
]}

Vacar, P. ^{[4
]}

Woolsey, N. ^{[6
]}

机构：

[1] Univ Bordeaux, CNRS, CEA, CELIA Ctr Lasers Intenses & Applicat,UMR5107, F-33405 Talence, France

[2] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[3] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[4] Ecole Polytech, Lab Utilisat Lasers Intenses, UMR 7605, CNRS,CEA, F-91128 Palaiseau, France

[5] Univ Oxford, Dept Phys, Oxford OX1 3PU, England

[6] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[7] CEA, DAM, CESTA, F-33405 Le Barp, France

[8] Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany

来源：

NEW JOURNAL OF PHYSICS | 2015年 / 17卷

基金：

英国工程与自然科学研究理事会;

关键词：

strong magnetic field; laser-driven coil targets; laser-plasma interaction; B-dot probing; faraday rotation; proton-deflectometry; plasma magnetization;

D O I：

10.1088/1367-2630/17/8/083051

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quasi-static magnetic-fields up to 800 T are generated in the interaction of intense laser pulses (500 J, 1 ns, 10(17) W cm(-2)) with capacitor-coil targets of different materials. The reproducible magnetic-field peak and rise-time, consistent with the laser pulse duration, were accurately inferred from measurements with GHz-bandwidth inductor pickup coils (B-dot probes). Results from Faraday rotation of polarized optical laser light and deflectometry of energetic proton beams are consistent with the B-dot probe measurements at the early stages of the target charging, up to t approximate to 0.35 ns, and then are disturbed by radiation and plasma effects. The field has a dipole-like distribution over a characteristic volume of 1 mm(3), which is consistent with theoretical expectations. These results demonstrate a very efficient conversion of the laser energy into magnetic fields, thus establishing a robust laser-driven platform for reproducible, well characterized, generation of quasi-static magnetic fields at the kT-level, as well as for magnetization and accurate probing of high-energy-density samples driven by secondary powerful laser or particle beams.

引用

页数：10

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