Microtrap on a concave grating reflector for atom trapping

Zhang Hui¹, Li Tao², Yin Ya-Ling¹, Li Xing-Jia¹, Xia Yong^{1, †,}, Yin Jian-Ping¹

(a) Potential depth along the y direction, and (b) the dipole force exerted on atoms in the laser field along the y direction.