A design study for PRIMAger, the PRIMA far-infrared imager, which combines an R=8 hyperspectral channel (24-84 µm) and a four-band polarimetric channel (80-264 µm) using KID arrays.
A 25-micron single photon sensitive kinetic inductance detector
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We report measurements characterizing the performance of a kinetic inductance detector array designed for a wavelength of 25 microns and very low optical background level suitable for applications such as a far-infrared instrument on a cryogenically cooled space telescope. In a pulse counting mode of operation at low optical flux, the detectors can resolve individual 25-micron photons. In an integrating mode, the detectors remain photon noise limited over more than six orders of magnitude in absorbed power from 70 zW to 200 fW, with a limiting NEP of 4.6 x 10^-20 W/rtHz at 1 Hz. In addition, the detectors are highly stable with flat power spectra under optical load down to 1 mHz. Operational parameters of the detector are determined including the efficiency of conversion of the incident optical power into quasiparticles in the aluminum absorbing element and the quasiparticle self-recombination constant.
fields
astro-ph.IM 1years
2025 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
PRIMA: PRIMAger, a far-infrared hyperspectral and polarimetric instrument
A design study for PRIMAger, the PRIMA far-infrared imager, which combines an R=8 hyperspectral channel (24-84 µm) and a four-band polarimetric channel (80-264 µm) using KID arrays.