Investigation of three-pulse photon echo in thick crystal using finite-difference time-domain method
Ma Xiu-Rong1, Xu Lin2, †, Chang Shi-Yuan, Zhang Shuang-Gen
       

(color online) The curve of the efficiency with the increasing of thickness. Green line: the simulation result conducted based on the Eq. (20) of Ref. [8]. Blue line: the simulation result conducted based on Eq. (7) and Eq. (8) in this paper.