Destructive and Constructive Interference of High-Order Harmonic Generation in Mixture of He and Ne Gases

Using the single-atom induced dipole moment under strong field approximation as a source, we suggest a model to simulate the macroscopic high-order harmonic generation （HHG） from the mixed gases （He and Ne） interacting with intense infrared laser by solving the three-dimensional Maxwell＇s equation o...

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Bibliographic Details
Published inChinese physics letters Vol. 27; no. 3; pp. 120 - 123
Main Author 金成 周效信 赵松峰
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.03.2010
Subjects
Approximation
Construction
Dipole moment
Harmonic generations
Interference
Maxwell's equations
Spectra
Three dimensional
半经典模型
混合气体
破坏性
高次谐波谱
麦克斯韦方程
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/27/3/033301

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Summary:Using the single-atom induced dipole moment under strong field approximation as a source, we suggest a model to simulate the macroscopic high-order harmonic generation （HHG） from the mixed gases （He and Ne） interacting with intense infrared laser by solving the three-dimensional Maxwell＇s equation of the harmonic field. Regular destructive interference （DI） and constructive interference （CI） are observed in the macroscopic HHG spectra when the gas jet is put at a good phase-matching position. A semiclassical model of short and long electron trajectories is applied to interpret the DI and CI of HHG qualitatively.
Bibliography:O562.3
TM213
11-1959/O4
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/3/033301