A scaling law of high-order harmonic generation

被引：9

作者：

Wu Yan ^{[1
]}

Ye Hui-Liang ^{[1
]}

Shao Chu-Yin ^{[2
]}

Zhang Jing-Tao ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

[2] Changshu Inst Technol, Changshu 215500, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 02期

基金：

中国国家自然科学基金;

关键词：

high-order harmonic generation; scaling law; harmonic yield; nonperturbative quantum electrodynamics; ANGULAR-DISTRIBUTIONS; FIELD; PHASE; IONIZATION; PULSES; PLASMA;

D O I：

10.1088/1674-1056/21/2/024210

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a nonperturbative quantum electrodynamics theory of high-order harmonic generation (HHG), a scaling law of HHG is established. The scaling law states that when the atomic binding energy E-b, the wavelength lambda and the intensity I of the laser field change simultaneously to kE(b), lambda/k, and k(3)I, respectively. The characteristics of the HHG spectrum remain unchanged, while the harmonic yield is enhanced k(3) times. That HHG obeys the same scaling law with above-threshold ionization is a solid proof of the fact that the two physical processes have similar physical mechanisms. The variation of integrated harmonic yields is also discussed.

引用

页数：6

共 30 条

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