A Transition Edge Sensor Bolometer for Fourier Transform Spectroscopy in the FIR Range - Design and Characterization

摘要

A Transition Edge Sensor (TES) composite bolometer for Fourier Transform spectroscopy was designed for the spectral range from 0.1 THz to 3 THz aiming to achieve a higher dynamic range at similar detectivity as commercially available silicon composite bolometers. The design is based on a thin film metal mesh absorber, a super conducting thermistor and SiN membrane technology. A prototype was built and characterization and first application results are presented.