Guiding of high-intensity laser pulses in 100-mm-long hydrodynamic optical-field-ionized plasma channels

被引：25

作者：

Picksley, A. ^{[1
,2
]}

Alejo, A. ^{[1
,2
]}

Cowley, J. ^{[1
,2
]}

Bourgeois, N. ^{[3
]}

Corner, L. ^{[4
]}

Feder, L. ^{[5
]}

Holloway, J. ^{[1
,2
]}

Jones, H. ^{[4
]}

Jonnerby, J. ^{[1
,2
]}

Milchberg, H. M. ^{[5
]}

Reid, L. R. ^{[4
]}

Ross, A. J. ^{[1
,2
]}

Walczak, R. ^{[1
,2
]}

Hooker, S. M. ^{[1
,2
]}

机构：

[1] Univ Oxford, John Adams Inst Accelerator Sci, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England

[2] Univ Oxford, Dept Phys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England

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

[4] Univ Liverpool, Sch Engn, Cockcroft Inst Accelerator Sci & Technol, Brownlow Hill, Liverpool L69 3GH, Merseyside, England

[5] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW ACCELERATORS AND BEAMS | 2020年 / 23卷 / 08期

基金：

英国工程与自然科学研究理事会; 英国科学技术设施理事会; 美国国家科学基金会; 欧盟地平线“2020”;

关键词：

WAVE-GUIDE; DISCHARGE; IMPLOSION;

D O I：

10.1103/PhysRevAccelBeams.23.081303

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Hydrodynamic optically-field-ionized (HOFI) plasma channels up to 100 mm long are investigated. Optical guiding is demonstrated of laser pulses with a peak input intensity of 6 x 10(17) W cm(-2) through 100 mm long plasma channels with on-axis densities measured interferometrically to be as low as n(e0) = (1.0 +/- 0.3) x 10(17) cm(-3). Guiding is also observed at lower axial densities, which are inferred from magneto-hydrodynamic simulations to be approximately 7 x 10(16) cm(-3). Measurements of the power attenuation lengths of the channels are shown to be in good agreement with those calculated from the measured transverse electron density profiles. To our knowledge, the plasma channels investigated in this work are the longest, and have the lowest on-axis density, of any free-standing waveguide demonstrated to guide laser pulses with intensities above >10(17) W cm(-2).

引用

页数：8

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