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日本东京大学综合文化研究科的小宫山进教授与科学技术振兴事业团合作开发出一种利用采用量子点的单一电子晶体管探测远红外区域的一个个光子的高灵敏度光探测器。 因为远红外区域可以利用分光学获得分子旋转状态和物质中原子振动状态的信息,所以它已成为一个重要的波长区域。以前的光探测器所存在的问题是灵敏度低。新的光探测器有效光敏面积为0.1mm~2,可以每秒钟0.1光子的光照射量探测光子。其灵敏度比以前的器件高
Professor Komiya Miyama, professor at the Department of Integrated Culture at the University of Tokyo, Japan, worked with the Science and Technology Revitalization Group to develop a highly sensitive photodetector that detects single photons in the far-infrared region using a single electronic transistor that uses quantum dots. Since the far-infrared region can utilize spectroscopy to obtain information on the state of molecular rotation and the vibrational state of atoms in matter, it has become an important wavelength region. The problem with previous photodetectors was their low sensitivity. The new photodetector has an effective light-sensitive area of 0.1mm-2, which detects photons at 0.1 photons of light per second. Its sensitivity is higher than previous devices