研究目的
Investigating the properties of high-order harmonic generation from an argon atom by bichromatic counter-rotating circularly polarized laser field.
研究成果
The study demonstrates that both integer and semi-integer harmonic orders can be generated by adjusting the frequency ratios of the bichromatic counter-rotating circularly polarized laser field. The emission mechanisms are explained through photon absorption and emission rules.
研究不足
The study is limited to theoretical investigation using a two-dimensional model. Experimental validation and three-dimensional effects are not considered.
1：Experimental Design and Method Selection:
The study involves numerically solving the two-dimensional time-dependent Schr?dinger equation (TDSE) of an atom in intense laser fields.
2：Sample Selection and Data Sources:
An argon atom is used as the sample.
3：List of Experimental Equipment and Materials:
A bichromatic counter-rotating circularly polarized laser field is employed.
4：Experimental Procedures and Operational Workflow:
The laser field consists of left- and right-circularly polarized components with varying wavelengths and frequency ratios.
5：Data Analysis Methods:
The harmonic spectrum is obtained by Fourier transformation of the dipole acceleration.
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