摘要详情

ID / 提交时间

85 / 2023-09-13 11:17:24

标题

High-efficiency Energy Collection Module of Vacuum Ultraviolet Monochromator Based on Image Slicers

关键字

high efficiency,monochromator,image slicers

主题及专题

Special Sessions > SS17 - Principles, methods and applications of photoelectron spectroscopy analytical instruments

状态

终稿

作者

Yiming Wang / University of Chinese Academy of Sciences

Yu Huang / Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

Xiaoxu Wang / Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

Zhanfeng Li / Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

Yu Chen / Xi'an Jiaotong University

Shuang Wang / Xi'an Jiaotong University

摘要

In the measurement of the photoemission yield spectrum and energy spectrum, the energy intensity of UV monochromatic light plays a crucial role in determining the signal-to-noise ratio of the test results. The efficiency of the monochromator is a key factor in limiting the energy of UV monochromatic light. Therefore, designing an efficient vacuum ultraviolet monochromator is highly important. This paper analyzes the factors that affect the efficiency of UV monochromatic light and proposes a design for an energy collection module based on image slicers. By using the principle of integral field, the light spot at the entrance slit of the monochromator changes from circular to strip. This module covers a wavelength range of 115nm-400nm and achieves high efficiency. The energy utilization efficiency in the 115nm-145nm range is increased by 2.4 times, while in the 145nm-400nm range, it is increased by 5.1 times.