Development of the optimized MCT detector for infrared synchrotron radiation and analysis of organic thin film

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05142
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Japan Synchrotron Radiation Research Institute
• Principal Investigator: Ikemoto Yuka 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 主幹研究員 (70344398)
• Co-Investigator(Renkei-kenkyūsha): TAJIMA Hiroyuki 兵庫県立大学, 物質理学研究科, 教授 (60207032)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 赤外放射光 / 顕微分光

Outline of Final Research Achievements

Infrared synchrotron radiation is a high brilliance light source and the feature plays an effective role in micro-optical spectroscopy. The noise level of an infrared synchrotron spectrum, however, sometimes is higher than that of thermal radiation spectrum. The higher noise level make it difficult to detect small signal from, for example, organic thin film. In this study, we investigate the source of the noise case of the synchrotron radiation source, and a saturation of an infrared detector is shown to be one of the most important noise sources. The detector is a typical infrared HgCdTe (MCT) detector. In order to improve the noise level, optical filters that confine wavenumber range are found to be effective. Using these method, we try to detect the absorption change of an organic samples in a liquid cell.

Free Research Field

光物性