Development of a Superconducting Low-Noise 3.1-THz Hot Electron Bolometer Receiver

被引：0

作者：

Irimajiri, Yoshihisa ^{[1
]}

Kawakami, Akira ^{[2
]}

Morohashi, Isao ^{[2
]}

Kumagai, Motohiro ^{[3
]}

Sekine, Norihiko ^{[2
]}

Nagano, Shigeo ^{[3
]}

Ochiai, Satoshi ^{[4
]}

Tanaka, Shukichi ^{[2
]}

Hanado, Yuko ^{[2
]}

Uzawa, Yoshinori ^{[5
]}

Hosako, Iwao ^{[6
]}

机构：

[1] Natl Inst Informat & Commun Technol, Commun Res Lab, Tokyo 1848795, Japan

[2] Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan

[3] Natl Inst Informat & Commun Technol, Atom Frequency Standard Project, Tokyo 1848795, Japan

[4] Natl Inst Informat & Commun Technol, Radiat Res Lab, Tokyo 1848795, Japan

[5] Natl Inst Informat & Commun Technol, NICT, Commun Res Lab, Minist Posts & Telecommun, Tokyo 1848795, Japan

[6] Natl Inst Informat & Commun Technol, ICT Res Inst, Tokyo 1848795, Japan

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2015年 / 5卷 / 06期

关键词：

Atmospheric and astronomical observations; hot electron bolometer (HEB) mixer; THz quantum cascade laser (QCL);

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have developed a hot electron bolometer mixer (HEBM) at 3.1 THz with a terahertz quantum cascade laser (THz-QCL) as a local oscillator. Both the HEBM and the THz-QCL device are fabricated in our laboratory. NbN film with 3 nm thickness was deposited on MgO substrate. The output power of the metal-metal waveguide type 3.1 THz-QCL was about 100 mu W at a heat sink temperature of 15 K. The lowest uncorrected receiver noise temperature of the HEBM was 1200 K (DSB). The corrected receiver noise temperature was 810 K (DSB). The measured IF noise bandwidth was about 3 GHz. The spectroscopic Allan time was 10 s. We have also demonstrated detection of emission line spectra of methanol [CH3OH].

引用

页码：1154 / 1159

页数：6

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