研究目的
To improve the effect of laser cooling, the effects of the optical force in four waving mixing of a two-level atoms system is researched, and a new rate equation from the nonlinear response is deduced with density-matrix method.
研究成果
The impulse increases with probe-wave detuning increasing and then becomes saturates. When the Ra-bi frequency is taken a certain value, the relative maximum can be obtained and it increases with the Ra-bi frequency increasing. The impulse occurs minimum when both probe-wave detuning and Ra-bi frequency are zero, and there is no maximum about the impulse, which is close to 0.02 in?nitely, the lowest temperature that can be reached is 248 μk.
研究不足
The study is limited to a two-level atoms system and does not explore more complex systems or the practical implementation of the findings in real-world applications.
