Development of a tunable terahertz (THz) radiation source using a MIM diode

使用 MIM 二极管开发可调谐太赫兹 (THz) 辐射源

• 批准号: 10640383
• 负责人: ODASHIMA Hitoshi
• 金额: $ 2.18万
• 依托单位: Toyama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10640383/
• 关键词: MIM diode; terahertz radiation; far-infrared radiation; difference frequency generation; molecular spectroscopy

In this research, we generated terahertz (far-infrared) radiation over 6 THz by mixing radiation from a ィイD115ィエD1 NHィイD23ィエD2 laser and a COィイD22ィエD2 laser in a metal-insulator-metal diode. A ィイD115ィエD1NHィイD23ィエD2 laser and a COィイD22ィエD2 laser to pump it were designed and constructed. A feedback system for stabilization of a ィイD115ィエD1NHィイD23ィエD2 laser was also designed and made up. The ィイD115ィエD1NHィイD23ィエD2 laser was locked to a saturated absorption signal from low pressure of ィイD115ィエD1NHィイD23ィエD2 gas, and its frequencies were measured by heterodyning the ィイD115ィエD1NHィイD23ィエD2 laser against COィイD22ィエD2 lasers.This ィイD115ィエD1NHィイD23ィエD2 laser was combined with a COィイD22ィエD2 laser constructed previously for difference frequency generation. Generation of far-infrared radiation was confirmed by observing spectra of CHィイD23ィエD2OH which has rich torsion-rotation transitions over 6 THz. We succeeded in the observation of a spectrum at 9 THz. Using this far-infrared radiation, 8 transitions of HF, HィイD135ィエD1C1, HィイD137ィエD1C1 were observed in the 6 to 9 THz region.

在这项研究中，我们产生了太赫兹（远红外）辐射超过6太赫兹混合辐射从一个金属-绝缘体-金属二极管中的一个CO_2激光器和一个CO_2激光器D_22的D_2激光器。设计并制作了一台Nd：YAG D115 Nd：YAG D1 NH：YAG D23 Nd：YAG D2激光器和一台泵浦它的CO：YAG D22 Nd：YAG D2激光器。设计并制作了一个稳定D115、D1 NH、D23、D2激光器的反馈系统。激光器被锁定到来自低压的激光器D115 NH 2 D1 NH NH 2 D23 NH 2 D2气体的饱和吸收信号，用激光器D115和激光器D1 NH和激光器D23测量了它的频率，激光器D115和激光器D1 NH和激光器D23和激光器D22组合，以前建造的差频产生。通过观察在6 THz以上具有丰富的扭-转跃迁的CH_（23）O_（23）OH的光谱，证实了远红外辐射的产生。我们成功地观测到了9 THz的光谱。利用这种远红外辐射，在6至9 THz区域观察到HF，H D135 D1 C1，H D137 D1 C1的8个跃迁。

项目成果

Hitoshi Odashima: "Tunable Far-Infrared Spectroscopy Extended to 9.1 THz"Optics Letters. 24. 406-407 (1999)

Hitoshi Odashima：“可调谐远红外光谱扩展到 9.1 THz”光学快报。

H. Odashima, L. R. Zink, K. M. Evenson: "Tunable Far-Infrared Spectroscopy of HF, HィイD135ィエD1Cl, and HィイD137ィエD1Cl in the 6 to 9 THz Region"Journal of Molecular Spectroscopy. 194. 283-284 (1999)

H. Odashima、L. R. Zink、K. M. Evenson：“6 至 9 THz 区域 HF、HighD135D1Cl 和 HighD137D1Cl 的可调谐远红外光谱”《分子光谱学杂志》194. 283-284 (1999)。

Hitoshi Odashima: "Tunable Far-Infrared Spectroscopy of HF, H^<35>Cl and H^<37>Cl in the 6 to 9 THz Region"Journal of Molecular Spectroscopy. 194. 283-284 (1999)

Hitoshi Odashima：“6至9 THz区域中HF、H^ 35 > Cl和H ^ 37 > Cl的可调谐远红外光谱”分子光谱学杂志。

Hitoshi Odashima: "Tunable Far-Infrared Spectroscopy Extended to 9.1THz"Optics Letters. 24. 406-407 (1999)

Hitoshi Odashima：“可调谐远红外光谱扩展到 9.1THz”光学快报。

H. Odashima, L. R. Zink, K. M. Evenson: "Tunable Far-Infrared Spectroscopy Extended to 9.1THz"Optics Letters. 24. 406-407 (1999)

H. Odashima、L. R. Zink、K. M. Evenson：“可调谐远红外光谱扩展到 9.1THz”光学快报。