中国物理B ›› 2005, Vol. 14 ›› Issue (8): 1671-1675.doi: 10.1088/1009-1963/14/8/037
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
刘运全, 张杰, 梁文锡
Liu Yun-Quan (刘运全), Zhang Jie (张杰), Liang Wen-Xi (梁文锡)
摘要: The features of interaction of femtosecond laser pulses with photocathode are studied theoretically in this paper. The surface temperature of the metal cathode film while femtosecond laser pulses irradiation is studied with two-temperature model. With a simple photoelectric model we obtain the optimum metal film thickness for the back-illuminated photocathode. The generated ultrashort photocurrent pulses are strongly dependent on the temperature of the electron gas and the lattice during the femtosecond laser pulse irradiation on the photocathode.
中图分类号: (Photomultipliers; phototubes and photocathodes)