Title :
Design of a terahertz detector based on a superconducting tunnel junction coupled to a thin superconductor film
Author :
Ariyoshi, S. ; Taino, T. ; Dobroiu, A. ; Sato, H. ; Matsuo, H. ; Otani, C.
Author_Institution :
RIKEN, Sendai, Japan
Abstract :
We designed a new terahertz detector using a superconducting tunnel junction. The detector is composed of a small junction (~2 mum in diameter) coupled to a thin superconductor film with a large absorbing area (~200 mum square). The noise equivalent power (NEP) of the optimized detector is expected to be in the order of 10-18 W/radicHz.
Keywords :
superconducting junction devices; superconductive tunnelling; terahertz wave detectors; thin films; noise equivalent power; size 2 mum; size 200 mum; superconducting tunnel junction; terahertz detector design; thin superconductor film; Bolometers; Detectors; Dielectric substrates; Josephson junctions; Sensor arrays; Superconducting device noise; Superconducting devices; Superconducting epitaxial layers; Superconducting films; Superconducting photodetectors;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324723
