Highly Sensitive and Compact THz heterodyne receiver based on HEB and QCL at 2.7 THz

被引：0
|
作者：
Joint, F. [1 ,2 ]
Gay, G. [1 ]
Vigneron, P-B [2 ]
Vacelet, T. [1 ]
Pirotta, S. [2 ]
Lefevre, R. [1 ]
Jin, Y. [2 ]
Li, L. H. [3 ]
Davies, A. G. [3 ]
Linfield, E. H. [3 ]
Delorme, Y. [1 ]
Colombelli, R. [2 ]
机构：
[1] Univ Paris 06, UPMC, Sorbonne Univ, LERMA,Observ Paris,PSI Res Univ,CNRS, F-75014 Paris, France
[2] Univ Paris Saclay, Univ Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS,UMR 9001, F-91120 Palaiseau, France
[3] Univ Leeds, Sch Elect & Elect Engn, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
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.2019.8874310
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 present the development of a highly sensitise and compact HEB/QCL heterodyne detection system. The HEB mixer is a NbN nano -bridge mounted in an integrated lens-antenna configuration. The local oscillator is a low power consumption and low beam divergence 3rd order distributed feedback quantum cascade laser with single mode emission at the target frequency of 2.7 THZ. A new quasi-optical coupling scheme between the mixer and the local oscillator has been developed that allows the removal of the beam splitter and therefore a better transmission of the RF signal and a more compact detection system. The lowest uncorrected double side band receiver noise temperature of this system is about 880 K.
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页数：1
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