利用Gerchberg-Saxton算法生成任意的二维光晶格阵列的全息图,并且将全息图加载到液晶型空间光调制器上,然后将850 nm的激光照射到空间光调制器的液晶屏上,利用透镜的傅里叶变换特性,成功地显示或构建任意形状的二维光晶格阵列。将该系统应用到87Rb的冷原子实验中,成功俘获冷原子,这为接下来的单原子多量子位的量子模拟实验奠定了基础。

In order to generater phase hologram of arbitrary 2D arrays of optical lattices,we applied Gerchberg-Saxton algorithm.With a liquid crystal on silicon SLM,we have successfully created the desired light intensity (arbitrary 2D arrays of optical lattices) in the focal plane of a lens,which depends on the phase displayed on the SLM.We applied it in the field of ultra-cold atom experiments.And then the cold atom was successfully captured by the two-dimensional optical lattices.These it is the foundation for the following quantum simulation experiment.