Stable GeV Ion-Beam Acceleration from Thin Foils by Circularly Polarized Laser Pulses

被引：296

作者：

Qiao, B. ^{[1
]}

Zepf, M. ^{[1
]}

Borghesi, M. ^{[1
]}

Geissler, M. ^{[1
]}

机构：

[1] Queens Univ Belfast, Ctr Plasma Phys, Dept Phys & Astron, Belfast BT7 1NN, Antrim, North Ireland

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

HIGH-INTENSITY LASER; IRRADIATION; GENERATION; TARGETS; DRIVEN; SOLIDS; PLASMA;

D O I：

10.1103/PhysRevLett.102.145002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A stable relativistic ion acceleration regime for thin foils irradiated by circularly polarized laser pulses is suggested. In this regime, the "light-sail" stage of radiation pressure acceleration for ions is smoothly connected with the initial relativistic "hole-boring" stage, and a defined relationship between laser intensity I(0), foil density n(0), and thickness l(0) should be satisfied. For foils with a wide range of n(0), the required I(0) and l(0) for the regime are theoretically estimated and verified with the particle-in-cell code ILLUMINATION. It is shown for the first time by 2D simulations that high-density monoenergetic ion beams with energy above GeV/u and divergence of 10 degrees are produced by circularly polarized lasers at intensities of 10(22) W/cm(2), which are within reach of current laser systems.

引用

页数：4

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