Physical Optics Analysis of Polarization Effects in SO LAT Reflectors

Simons Observatory Large Aperture Telescope reflector model and coordinate systems. Figure from Ren, Gallardo and Guðmundsson (2026).

Abstract

We present a physical-optics analysis of the polarization response of the reflective optics of the Simons Observatory Large Aperture Telescope. Far-field co-polar and cross-polar beam patterns are simulated for representative feedhorn positions, and the corresponding polarization-angle offsets are evaluated.

Publication
SPIE Astronomical Telescopes + Instrumentation 2026
Jón E. Guðmundsson
Jón E. Guðmundsson
Professor

Professor of astrophysics at the University of Iceland and senior research scientist at Stockholm University.