TY - JOUR
T1 - Complex Beam Mapping and Fourier Optics Analysis of a Wide-Field Microwave Kinetic Inductance Detector Camera
AU - Yates, S. J.C.
AU - Davis, K. K.
AU - Jellema, W.
AU - Baselmans, J. J.A.
AU - Baryshev, A. M.
PY - 2020
Y1 - 2020
N2 - For astronomical instruments, accurate knowledge of the optical pointing and coupling is essential to characterize the alignment and performance of (sub-)systems prior to integration and deployment. Ideally, this requires the phase response of the optical system, which for direct (phase insensitive) detectors was not previously accessible. Here, we show development of the phase-sensitive complex beam pattern technique using a dual optical source heterodyne technique for a large-field-of-view microwave kinetic inductance detector camera at 350 GHz. We show here how you can analyze the measured data with Fourier optics, which allows integration into a telescope model to calculate the on-sky beam pattern and telescope aperture efficiency prior to deployment at a telescope.
AB - For astronomical instruments, accurate knowledge of the optical pointing and coupling is essential to characterize the alignment and performance of (sub-)systems prior to integration and deployment. Ideally, this requires the phase response of the optical system, which for direct (phase insensitive) detectors was not previously accessible. Here, we show development of the phase-sensitive complex beam pattern technique using a dual optical source heterodyne technique for a large-field-of-view microwave kinetic inductance detector camera at 350 GHz. We show here how you can analyze the measured data with Fourier optics, which allows integration into a telescope model to calculate the on-sky beam pattern and telescope aperture efficiency prior to deployment at a telescope.
KW - Complex field mapping
KW - Gaussian beam analysis
KW - Kinetic inductance detector
KW - Near- to far-field transformation
KW - Optical characterization
UR - http://www.scopus.com/inward/record.url?scp=85079213959&partnerID=8YFLogxK
U2 - 10.1007/s10909-020-02352-2
DO - 10.1007/s10909-020-02352-2
M3 - Article
AN - SCOPUS:85079213959
SN - 0022-2291
VL - 199
SP - 156
EP - 163
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 1-2
ER -