Development of New Analyzing Method of Excited States Using Combination of Soft X-Rays and Laser

软X射线与激光相结合的激发态分析新方法的开发

• 批准号: 17360022
• 负责人: KAMADA Masao
• 金额: $ 10.31万
• 依托单位: Saga University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360022/
• 关键词: Synchrotron Light; Time-Resolved Photoelectron Spectroscopy; Excited-State Spectroscopy; Excited-State Dynamics; Semiconductor Surface; Laser Combination Experiments; Two-Photon Excitation; Photo-Voltaic Effect; レーザー組合せ実験; 超高速分光; 内殻光電子分光; 組合せ実験

In order to develop the new analyzing method for excited states, we have constructed the ultra-fast time-resolved photoelectron spectroscopy system based on the existing high energy and angle-resolved photoelectron spectrometer and the ultra-fast laser. Using this new system, we have carried out the measurement of the photoelectrons from the excited-states pumped by laser-light. The experimental results were compared with the calculation of the excited states, indicating the performance of the present new spectroscopy. The energy and angle-resolved photoelectron spectroscopy has been conducted on Ag/Si surfaces. The obtained energy dispersion curves of the bands indicate clearly the validity of the present new spectroscopy. We have also installed the planar undulator to obtain the higher brilliant synchrotron light and tuned up the monochromator system for combination experiments using synchrotron light and laser that have advantage in the high repetition frequency. We have constructed the new two-photon photoelectron spectroscopy system. Using this system we have successfully measured the ultra-fast time-resolved photoelectron spectra on n-and p-type GaAs. The result is very interesting and attractive to investigate the dynamics of the surface photo-voltage effect. A part of the results obtained in the present project has been reported in the international conference and Journals.

为了开发激发态的新分析方法，我们基于现有的高能量和角度分辨的光电光谱仪和超快速激光器构建了超快速的光电谱光谱系统。使用这个新系统，我们已经对激光光泵送的激发态的光电子进行了测量。将实验结果与激发态的计算进行了比较，表明当前新光谱的性能。能量和角度分辨的光电子光谱已在Ag/Si表面上进行。带的能量分散曲线清楚地表明了当前新光谱的有效性。我们还安装了平面解散器，以获得更高的亮同步子光线，并使用同步灯和激光调整了单色器系统，以进行组合实验，这些光和激光在高重复频率中具有优势。我们已经构建了新的两光子光电子光谱系统。使用该系统，我们成功地测量了N和P型GAA上的超快速时间分辨光电子光谱。结果对于研究表面光压效应的动力学非常有趣和有吸引力。在国际会议和期刊上报告了本项目中获得的部分结果。

项目成果

Infrared Absorption changein single-walled carbon nanotubes observed by combination spectroscopy of SR and laser

SR与激光组合光谱观察单壁碳纳米管的红外吸收变化

• 发表时间: 2007
• 期刊: Journal of Synchrotron Radiation 13
• 作者: Junpei Azuma;Minoru Itoh;Masahiro Koike;Masao Kamada;Morinobu Endo
• 通讯作者: Morinobu Endo

Potoelectron Spectroscopy of L-Cystein

L-半胱氨酸的电电子能谱

• 发表时间: 2008
• 作者: M.;Kamada;S.;Kitagima;H.;Sugiyama;J.;Azuma;K.;Takahashi;S.;Fujimoto
• 通讯作者: Fujimoto

Laser-induced infrared absorption in lead tungstate observed by laser-SR combined spectroscopy

激光-SR 组合光谱观察钨酸铅中的激光诱导红外吸收

• 发表时间: 2006
• 期刊: J. Luminescence 119/120
• 作者: M.Itoh;J.Azuma;T.Shimizu;M.Kamada;M.Kobayashi;Y.Usuki
• 通讯作者: Y.Usuki

光物性の基礎(放射光分光)

光学特性基础知识（同步辐射光谱）

• 发表时间: 2006
• 作者: M.;Kamada;鎌田 雅夫(分担)
• 通讯作者: 鎌田 雅夫(分担)

Present and future programs using synchrotron light in Saga University

佐贺大学使用同步加速器光的当前和未来项目

• 发表时间: 2007
• 作者: M.;Kamada
• 通讯作者: Kamada