High-energy cutoff in the spectrum of strong-field nonsequential double ionization

被引：252

作者：

Parker, JS ^{[1
]}

Doherty, BJS

Taylor, KT

Schultz, KD

Blaga, CI

DiMauro, LF

机构：

[1] Queens Univ Belfast, DAMTP, Belfast BT7 1NN, Antrim, North Ireland

[2] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.96.133001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron energy distributions of singly and doubly ionized helium in an intense 390 nm laser field have been measured at two intensities (0.8 PW/cm(2) and 1.1 PW/cm(2), where PW equivalent to 10(15) W/cm(2)). Numerical solutions of the full-dimensional time-dependent helium Schrodinger equation show excellent agreement with the experimental measurements. The high-energy portion of the two-electron energy distributions reveals an unexpected 5U(p) cutoff for the double ionization (DI) process and leads to a proposed model for DI below the quasiclassical threshold.

引用

页码：1 / 4

页数：4

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