HIGH-INTENSITY ABOVE-THRESHOLD IONIZATION OF HE

被引：137

作者：

MOHIDEEN, U

SHER, MH

TOM, HWK

AUMILLER, GD

WOOD, OR

FREEMAN, RR

BOKOR, J

BUCKSBAUM, PH

机构：

[1] COLUMBIA UNIV,DEPT PHYS,NEW YORK,NY 10027

[2] UNIV MICHIGAN,DEPT PHYS,ANN ARBOR,MI 48109

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.71.509

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This is the first high resolution measurement of the electron energy spectrum from high intensity above-threshold ionization (ponderomotive energy >> ionization potential >>hv) at intensities up to 7 x 10(15) W/cm2. In contrast to previous work, we have used a short pulse and a large focal spot along with low gas densities to minimize the effect of ponderomotive forces and collisions. Existing models do not agree well with electron energy spectra for either linearly or circularly polarized light. The electron temperature is too hot for the implementation of 820 nm multiphoton ionized recombination type XUV laser schemes.

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页码：509 / 512

页数：4

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