Some investigations of laser cooled atoms

William D. Phillips

Gao Feng, Chang Hong, Xinliang Wang +2 more

We have conducted experimental investigations on the effect of repumping laser on the cooling and trapping of strontium atoms. More than 3.1×10888Sr atoms have been trapped with 679 nm and 707 nm repumping laser added. The two repumping lasers enhance the trappopulation by a factor of 17. We also made experimental investigations on the effect of 707 nm repumping laser detuning on the cooling and trapping of strontium atoms. The fluctuation of atom trapping population is less than 3 ‰ when the detuning from 707 nm is 5 MHz.

Hidekazu Hachisu

Yuqing Zhang, Lei Tan, Zhu Zhong-Hua +1 more

Using the algebraic dynamical method, this paper investigates the laser cooling of a moving two-level atom coupled to a cavity field. Analytical solutions of optical forces and the cooling temperatures are obtained. Considering Rb atoms as an example, it finds that the numerical results are relevant to the recent experimental laser cooling investigations.

Thad G Walker

Елена Сергеевна Калганова, Gulnara A. Vishnyakova, A Golovisin +7 more

Laser cooling and trapping of thulium atoms for further investigation of collisional properties, Kalganova, E, Vishnyakova, G, Golovisin, A, Tregubov, D, Sukachev, D, Fedorov, S, Khabarova, K, Akimov, A, Kolachevsky, N, Sorokin, V