supported by the National Natural Science Foundation of China (Nos.82227806,12227901,and 12274280);the Strategic Priority Research Program of Chinese Academy of Sciences (No.XDB43010200);the National Key Research and Development Program of China (No.2022YFA1404603)。
The dependence of nonlinear optical absorption and carrier dynamics on the thickness of chromium thiophosphate (CrPS_(4))is investigated.Utilizing the I-scan system,we have observed the typical two-photon absorption (...