Development of the Experimental System for Time‐ and Angle‐resolved Photoemission Spectroscopy
Development of the Experimental System for Time‐ and Angle‐resolved Photoemission Spectroscopy
复制标题
DOI：
10.1063/1.2436283
复制
发表时间：
2007-02
期刊：
影响因子：
--
通讯作者：
Kazutoshi Takahashi;J. Azuma;Shinji Tokudomi;M. Kamada
中科院分区：
文献类型：
--
作者：
Kazutoshi Takahashi;J. Azuma;Shinji Tokudomi;M. Kamada
为了研究激光激发材料表面层的电子非平衡态，在佐贺光源BL 13上建立了时间和角度分辨的光电子能谱实验系统。时间和角度分辨的光电子能谱可以通过使用光电子能谱仪的MCP检测器的门电子器件来获得。门控MCP检测器与来自Ti：蓝宝石再生放大器的激光脉冲同步，重复频率为10至300 kHz。门控MCP检测器的时间窗口可以在10纳秒和160微秒之间变化。皮科级的时间分辨测量可以使用泵浦-探测技术进行，该技术使用钛宝石激光器的基波、二次和三次谐波作为激发源。使用这些系统，我们可以执行时间和角度分辨的光电子显微镜。
Experimental system for the time‐ and angle‐resolved photoemission spectroscopy have been constructed at BL13 in SAGA Light Source, in order to study the electronic non‐equilibrium in the surface layer of laser‐excited materials The experimental system is very useful for photoemission spectroscopy in the wide temporal and angular ranges. The time‐ and angle‐resolved photoemission spectra can be obtained with using the gate electronics for the MCP detector of the photoemission spectrometer. The gated MCP detector is synchronized with the laser pulse from Ti:sapphire regenerative amplifier with the repetition frequency of 10 to 300 kHz. The time‐window of the gated MCP detector can be changed between 10 nano‐ and 160 micro‐second. The time‐resolved measurement in pico‐second region can be performed with using the pump‐probe technique which uses fundamental, second and third harmonics from the Ti:sapphire laser as the excitation source. Using these systems, we can perform the time‐ and angle‐resolved photoem...