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High-order harmonic generation in atom clusters

被引：264
作者：
Donnelly, TD
Ditmire, T
Neuman, K
Perry, MD
Falcone, RW
机构：
[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720
[2] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.76.2472
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the generation of short-wavelength, high-order harmonics of intense laser radiation from atom clusters. Clusters containing about 10(3) atoms are produced in a high-pressure gas jet. We show them to be a unique nonlinear medium. Compared with monomer gases they yield a higher appearance intensity for a given harmonic order, stronger nonlinear dependence of harmonic signal on laser intensity, higher-order harmonics, and reduced saturation of the harmonic signal at high laser intensity.
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页码：2472 / 2475
页数：4
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