测量时间分辨拉曼谱实验装置的研制

The Experimental Setup for Time-Resolved Raman

测量时间分辨拉曼谱实验装置的研制王晶晶金榕周赫田邹英华（北京大学物理系人工微结构及介观物理国家重点实验室北京１００８７１）孙志勇（北京理工大学四系４３１教研室北京１０００８１）ＴｈｅＥｘｐｅｒｉｍｅｎｔａｌＳｅｔｕｐｆｏｒＴｉｍｅ－ＲｅｓｏｌｖｅｄＲ...

Abstract The experimental setup combined the Dilor XY spectrograph with the Conherent femtosecond dye laser system in our laboratory. The grating couple and the narrow slit used to cut the wide tails of probe pulse spectrum for measuring the low frequency LO phonon and the electronic Raman. The polarization of pump and probe laser are orthogonal and polaroid used to select the scatting light stimulated by probe pulse only. The pump pulse was delayed by the optical delay line drove by a computer control setp motor, it is easy to know the procise position so that we can calculate the delay time of the pump pulse before probe pulse.