PT Unknown
AU Maslennikov, SN
   Finkel, MI
   Antipov, SV
   Polyakov, SL
   Zhang, W
   Ozhegov, R
   Vachtomin, YB
   Svechnikov, SI
   Smirnov, KV
   Korotetskaya, YP
   Kaurova, NS
   Gol'tsman, GN
   Voronov, BM
TI Spiral antenna coupled and directly coupled NbN HEB mixers in the frequency range from 1 to 70 THz
SE Proc. 17[super:th] Int. Symp. Space Terahertz Technol.
PY 2006
BP 177
EP 179
DE directly coupled NbN HEB mixers
AB We investigate both antenna coupled and directly coupled HEB mixers at several LO frequencies within the range of 2.5 THz to 70 THz. H20 (2.5+10.7 THz), and CO2 (30 THz) gas discharge lasers are used as the local oscillators. The noise temperature of antenna coupled mixers is measured at LO frequencies of 2.5 THz, 3.8 THz, and 30 THz. The results for both antenna coupled and directly coupled mixer types are compared. The devices with in—plane dimensions of 5x5 ,um 2 are pumped by LO radiation at 10.7 THz. The directly coupled HEB demonstrates nearly flat dependence of responsivity on frequency in the range of 25+64 THz.
PI Paris, France
ER