Towards optical polarization control of laser-driven proton acceleration in foils undergoing relativistic transparency

被引：64

作者：

Gonzalez-Izquierdo, Bruno ^{[1
]}

King, Martin ^{[1
]}

Gray, Ross J. ^{[1
]}

Wilson, Robbie ^{[1
]}

Dance, Rachel J. ^{[1
]}

Powell, Haydn ^{[1
]}

Maclellan, David A. ^{[1
]}

McCreadie, John ^{[1
]}

Butler, Nicholas M. H. ^{[1
]}

Hawkes, Steve ^{[1
,2
]}

Green, James S. ^{[2
]}

Murphy, Chris D. ^{[3
]}

Stockhausen, Luca C. ^{[4
]}

Carroll, David C. ^{[2
]}

Booth, Nicola ^{[2
]}

Scott, Graeme G. ^{[1
,2
]}

Borghesi, Marco ^{[5
]}

Neely, David ^{[1
,2
]}

McKenna, Paul ^{[1
]}

机构：

[1] Univ Strathclyde, SUPA Dept Phys, Glasgow G4 0NG, Lanark, Scotland

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

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

[4] Ctr Laseres Pulsados CLPU, M5 Parque Cient, Salamanca 37185, Spain

[5] Queens Univ Belfast, Ctr Plasma Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

NATURE COMMUNICATIONS | 2016年 / 7卷

基金：

英国工程与自然科学研究理事会;

关键词：

ION-ACCELERATION; HARMONIC-GENERATION; INTENSITY LASER; THIN-FOIL; PLASMA; BEAM; PULSES; RAYS; WAKE; WAVE;

D O I：

10.1038/ncomms12891

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Control of the collective response of plasma particles to intense laser light is intrinsic to relativistic optics, the development of compact laser-driven particle and radiation sources, as well as investigations of some laboratory astrophysics phenomena. We recently demonstrated that a relativistic plasma aperture produced in an ultra-thin foil at the focus of intense laser radiation can induce diffraction, enabling polarization-based control of the collective motion of plasma electrons. Here we show that under these conditions the electron dynamics are mapped into the beam of protons accelerated via strong charge-separation-induced electrostatic fields. It is demonstrated experimentally and numerically via 3D particle-in-cell simulations that the degree of ellipticity of the laser polarization strongly influences the spatial-intensity distribution of the beam of multi-MeV protons. The influence on both sheath-accelerated and radiation pressure-accelerated protons is investigated. This approach opens up a potential new route to control laser-driven ion sources.

引用

页数：10

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