%A Qian Liang, Tao Chen, Wen-Hao Bu, Yu-He Zhang, Bo Yan %T Laser cooling with adiabatic passage for type-II transitions %0 Journal Article %D 2021 %J Front. Phys. %J Frontiers of Physics %@ 2095-0462 %R 10.1007/s11467-020-1019-8 %P 32501-${article.jieShuYe} %V 16 %N 3 %U {https://journal.hep.com.cn/fop/EN/10.1007/s11467-020-1019-8 %8 2021-06-15 %X

We extend the idea of laser cooling with adiabatic passage to multi-level type-II transitions. We find the cooling force can be significantly enhanced when a proper magnetic field is applied. That is because the magnetic field decomposes the multi-level system into several two-level sub-systems, hence the stimulated absorption and stimulated emission can occur in order, allowing for the multiple photon momentum transfer. We show that this scheme also works on the laser-coolable molecules with a better cooling effect compared to the conventional Doppler cooling. A reduced dependence on spontaneous emission based on our scheme is observed as well. Our results suggest this scheme is very feasible for laser cooling of polar molecules.