Sub-Picowatt Precision Radiometry Using Superconducting Transition Edge Sensor Bolometers
James A. Chervenak, Erich N. Grossman, Carl D. Reintsema, Kent D. Irwin, S. H. Mosely, C. A. Allen
We describe a cryogenic radiometric calibration system suitable for high sensitivity, low power bolometers. The system uses a variable temperature blackbody source capable of temperatures of 4-20 K, whose output covers the sub-millimeter wavelength regime. The detector is an eight-channel, filled-focal-plane array of superconducting transition edge sensor (TES) bolometers. The system is designed to test components of the optical system such as polarizers, filters and stray light suppressors as well as the performance of the detector array elements. The bolometer response to incident sub-millimeter radiation is measured and compared to the calculated output of the source incident on the bolometer.
, Grossman, E.
, Reintsema, C.
, Irwin, K.
, Mosely, S.
and Allen, C.
Sub-Picowatt Precision Radiometry Using Superconducting Transition Edge Sensor Bolometers, IEEE Transactions on Applied Superconductivity
(Accessed September 26, 2023)