公开(公告)号：US20220163448A1

公开(公告)日：2022-05-26

申请号：US17489402

申请日：2021-09-29

申请人： BEIJING JIAOTONG UNIVERSITY

发明人： Dawei HE ,  Ang BIAN ,  Yongsheng WANG

IPC分类号： G01N21/63

摘要： The present disclosure provides a temporally-resolved and spatially-resolved pump-probe control system and a method. The system includes an ultrafast femtosecond laser device, an optical parametric oscillator, a displacement delay module, a micro-drive rotation module, an objective lens, a sample stage, a coupled photoelectric amplifier and a computer terminal. The control system of the present disclosure integrates a temporally-resolved pump-probe function and a temporally-resolved and spatially-resolved pump-probe function. The present disclosure can realize pump-probe temporally-resolved scanning, one-dimensional temporally-resolved and spatially-resolved scanning, and two-dimensional temporally-resolved and spatially-resolved scanning under full-automatic control, and real-time data is visualized and synchronously written into batch files. The present disclosure aims to reduce complexity of temporally-resolved and spatially-resolved scanning, shorten a test period, improve probe efficiency, and ensure stability and reliability of data results.