A highly linear superconducting bolometer for quantitative THz Fourier transform spectroscopy.

Optics express

PubMedID: 25969213

Kehrt M, Monte C, Beyer J, Hollandt J. A highly linear superconducting bolometer for quantitative THz Fourier transform spectroscopy. Opt Express. 2015;23(9):11170-82.
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.