Complex Beam Mapping and Fourier Optics Analysis of a Wide-Field Microwave Kinetic Inductance Detector Camera

Journal article (2020)

Authors

S.J.C. Yates SRON–Netherlands Institute for Space Research
Kristina K. Davis University of California
W Jellema Rijksuniversiteit Groningen, SRON–Netherlands Institute for Space Research
J.J.A. Baselmans Tera-Hertz Sensing - EEMCS , SRON–Netherlands Institute for Space Research
A. M. Baryshev Rijksuniversiteit Groningen
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
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Published Date

2020

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

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.

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