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 in:Chinese physics letters 2010-03, Vol.27 (3), p.120-123, Article 033301
Main Author: 金成 周效信 赵松峰
Format: Article
Language:English
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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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.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/3/033301