Millimeter Wave Spectroscopy by Snchrotron Radiation

加速器辐射毫米波光谱

• 批准号: 63540235
• 负责人: NANBA Takao
• 金额: $ 1.22万
• 依托单位: Kobe University (1989)Tohoku University (1988)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63540235/
• 关键词: SYNCHROTRON RADIATION; MILLIMETERWAVE SOURCE; MILLIMETERWAVE SPECTROSCOPY; GERMANIUM; TWO PHONON PROCESS; シンクロトン放射光

Millimeter wave spectroscopic study was done by using secnrotron dadiation (SR) at the UVSOR, the electron storage ring facilities of the Institute for Molecular Science (Okazaki), as a very bright light source.First of all, the optical system which has been dedicated to the far infrared spectroscopy was modified so that it became available for the millimeter wave spectroscopy. Using the revised optical system combined with the SR, a millimeter wave absorption spectrum of Ge crystal was measured. Absorption band with a peak at 5cm^<-1> was found. From the temperature dependence of the spectral intensity, the absorption band was found to be due to the two phonon difference process of Ge. By the present research, the SR was first proved to be a very useful light source in the millimeter wave energy region higher than 2.5cm^<-1>.If we adopt a more sensitive detector only to a millimeter wave photon like a liquid He^3-cooled barometer, then millimeter wave spectroscopy by the SR will become available in a whole millimeter wave region.

在冈崎分子科学研究所的电子储存环设备UVSOR中，利用作为非常明亮的光源的秒加速器辐射（SR）进行毫米波分光研究。首先，对用于远红外分光的光学系统进行了改造，使其可用于毫米波分光。利用改进后的光学系统与超共振器相结合，测量了锗晶体的毫米波吸收谱。发现在5cm ~ 2处有一个吸收峰<-1>，从光谱强度随温度的变化关系，发现该吸收峰是由于Ge的双声子差过程引起的。目前的研究首次证明了超共振器在2.5cm ↑ [2]以上的毫米波波段是一种非常有用的光源<-1>，如果我们采用像氦冷气压计那样只对毫米波光子更灵敏的探测器，那么超共振器的毫米波光谱学将在整个毫米波波段都是可行的。

项目成果

T.Nanba: "Utilization of Synchrotron Radiation in the Farーinfrared Region" Review of Scientific Instruments. 60. 1680-1685 (1989)

T.Nanba：“远红外区域同步辐射的利用”科学仪器评论 60. 1680-1685 (1989)。

T.Nanba: "Utilization of synchrotron radiation in the far-infrared region." Rev.Sci.Instrum.60 No.7. 1680-1685 (1989)

T.Nanba：“在远红外区域利用同步加速器辐射。”

難波孝夫,池沢幹彦: 放射光. 1. 21-33 (1988)

Takao Namba，Mikihiko Ikezawa：同步辐射。1. 21-33 (1988)

T.Nanba: "Spectroscopy in the far-Infrared and Millimeter Wave Regions by Synchrotron Radiation" Synchrotron Radiation 1 No.2 21-33, 1988.

T.Nanba：“同步辐射在远红外和毫米波区域的光谱学”同步辐射 1 No.2 21-33，1988。

T.Nakazato: "Observation of Coherent Synchrotron Radiation" Pys.Rev.Let.63 No.12 1245-1248, 1989.

T.Nakazato：“相干同步加速器辐射的观察”Pys.Rev.Let.63 No.12 1245-1248，1989。