@Article{Prober1993,
author="Prober, D. E.",
title="Superconducting terahertz mixer using a transition-edge microbolometer",
journal="Department of Applied Physics and Physics, Yale University, New Haven, Connecticut 06520-2157",
year="1993",
pages="2119--2121",
abstract="We present a new device concept for a mixer element for THz frequencies. This uses a superconducting transition-edge microbridge biased at the center of its superconducting transition near 4.2  K. It is fed from an antenna or waveguide structure. Power from a local oscillator and a rf signal produce a temperature and resulting resistance variation at the difference frequency. The new aspect is the use of a very short bridge in which rapid (  <  0.1  ns) outdiffision  of hot electrons occurs. This gives large intermediate frequency (if) response.  The mixer offers {\textasciitilde}4 GHz if bandwidth, z 80 Cl rf resistive impedance, good match to the if amplifier, and requires only l-20 nW of local oscillator power.  The upper rf frequency is determined by antenna or waveguide properties. Predicted mixer conversion efficiency is l/8, and predicted double-sideband receiver noise temperatures are 260 and 90 K for transition widths of 0.1 and 0.5 T, respectively.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=955), last updated on Wed, 01 Jul 2015 18:53:08 -0500"
}