Open AccessA highly linear superconducting bolometer for quantitative THz Fourier transform spectroscopy
Author(s) -
M. Kehrt,
Christian Monte,
J Beyer,
J. Hollandt
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.011170
Subject(s) - bolometer , terahertz radiation , materials science , fourier transform spectroscopy , superconductivity , spectroscopy , optics , fourier transform infrared spectroscopy , terahertz spectroscopy and technology , optoelectronics , fourier transform , thermistor , transition edge sensor , physics , detector , quantum mechanics
A superconducting transition edge sensor (TES) bolometer operating in the spectral range from 0.1 THz to 3 THz was designed. It is especially intended for Fourier transform spectroscopy and features a higher dynamic range and a highly linear response at a similar response compared to commercially available silicon composite bolometers. The design is based on a thin film metal mesh absorber, a superconducting thermistor and Si3N4 membrane technology. A prototype was set up, characterized and successfully used in first applications.