Demonstration of a Frequency-Agile Quantum Well Based THz Heterodyne Detector

被引：0
|
作者：
Yoo, Changyun [1 ,2 ]
Huang, Mengchen [1 ,2 ]
Kawamura, Jonathan [3 ]
West, Ken W. [4 ]
Karasik, Boris S. [3 ]
Pfeiffer, Loren N. [4 ]
Sherwin, Mark S. [1 ,2 ]
机构：
[1] Univ Calif Santa Barbara, Phys Dept, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Inst Terahertz Sci & Technol, Santa Barbara, CA 93106 USA
[3] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[4] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
来源：
2019 44TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2019年
关键词：
D O I：
10.1109/irmmw-thz.2019.8874259
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：
The field of THz mixers for astrophysics is dominated by superconducting hot-electron bolometers (HEBs), whereas Schottky-diode mixers have been the only devices suitable for planetary instruments. The Schottky mixers operate at ambient temperature, which is a great advantage for planetary applications, but are much less sensitive than the state-of-the art HEBs and require a 10(3) higher local oscillator (LO) power. Here, we have demonstrated a novel THz mixer which offers the best of both worlds: it operates at 60 K (accessible by passive cooling on space), requires similar to mu W LO power, and has a potential to be as sensitive as the HEB mixer.
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