在SPring-8 BL07LSU利用二维角分辨飞行时间分析仪开发软X射线时间分辨光电子能谱系统。

Development of soft x-ray time-resolved photoemission spectroscopy system with a two-dimensional angle-resolved time-of-flight analyzer at SPring-8 BL07LSU.

作者信息

Ogawa Manami, Yamamoto Susumu, Kousa Yuka, Nakamura Fumitaka, Yukawa Ryu, Fukushima Akiko, Harasawa Ayumi, Kondoh Hiroshi, Tanaka Yoshihito, Kakizaki Akito, Matsuda Iwao

机构信息

Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Chiba 277-8581, Japan.

出版信息

Rev Sci Instrum. 2012 Feb;83(2):023109. doi: 10.1063/1.3687428.

DOI:10.1063/1.3687428

PMID:22380081

Abstract

We have developed a soft x-ray time-resolved photoemission spectroscopy system using synchrotron radiation (SR) at SPring-8 BL07LSU and an ultrashort pulse laser system. Two-dimensional angle-resolved measurements were performed with a time-of-flight-type analyzer. The photoemission spectroscopy system is synchronized to light pulses of SR and laser using a time control unit. The performance of the instrument is demonstrated by mapping the band structure of a Si(111) crystal over the surface Brillouin zones and observing relaxation of the surface photo-voltage effect using the pump (laser) and probe (SR) method.

摘要

我们利用SPring-8的BL07LSU同步辐射（SR）和超短脉冲激光系统开发了一种软X射线时间分辨光电子能谱系统。使用飞行时间型分析仪进行二维角分辨测量。光电子能谱系统通过时间控制单元与SR和激光的光脉冲同步。通过绘制Si(111)晶体在表面布里渊区的能带结构，并使用泵浦（激光）和探测（SR）方法观察表面光电压效应的弛豫，证明了该仪器的性能。