测量超快现象用光学系统时间特性的研究

THE STUDY OF TEMPORAL CHARACTER OF THE OPTICAL SYSTEM FOR ULTRAFAST PHENOMENON MEASUREMENT

超快速电子成象器件的发展,使超快现象的测量成为可能,同时也提出了研究光学透镜系统时间特性的新课题。实验证明:光学系统时间畸变和时间弥散,将影响超快现象的测量。本文除了对皮秒、飞秒变象管扫描相机工作在可见光波段时透镜系统的时间特性进行研究外,还对该系统用于紫外波段时,光学透镜系统的新特点进行了分析。

Although the development of ultrafast electronic image device has made the measurement of ultrafast phenomena become possible, a new subject of studying temporal character of optical system was brought about. Experiments shows: the temporal distortion and dispersion of an optical system affect the measurement of ultrafast phenomena. The temporal character of the optical system used for picosecond and femtosecond streak camera working with monochromatic light and complex light in long wavelength range are studied in this paper, the new structure is also analysed when the system is used short wavelength.