研究目的
To study the contribution of excited discrete atomic levels to the generation of high- and low-order harmonics in the interaction of a single atom with a two-color laser field.
研究成果
The dynamics of atomic levels population significantly affects the efficiency and polarization characteristics of harmonic generation. The symmetry of populated excited levels plays a crucial role in determining the polarization state of the generated radiation. The findings suggest new possibilities for controlling the polarization characteristics of generated harmonics, including the potential for generating high-order circularly polarized harmonics.
研究不足
The study is limited to theoretical modeling and numerical calculations, without experimental validation. The focus is on single atom response, which may not fully capture the dynamics in extended media or under different experimental conditions.
