Astronomical instruments greatly improve wavelength multiplexing capabilities by using
beam splitters. In the case of the 4-m National Science Foundation's Daniel K. Inouye Solar …

The DKIST is designed to deliver accurate spectropolarimetric calibrations across a wide
wavelength range and large field of view for solar observations. Instruments deliver spectral …

Astronomical spectropolarimeters require high accuracy polarizers with large aperture and
stringent uniformity requirements. In solar applications, wire grid polarizers are often used as …

The Daniel K. Inouye Solar Telescope (DKIST) is designed to deliver accurate
spectropolarimetric calibrations across a wide wavelength range and large field of view for …

Modern observatories and instruments require optics fabricated at larger sizes with more
stringent performance requirements. The Daniel K. Inouye Solar Telescope will be the …

The DKIST will have a suite of first-light polarimetric instrumentation requiring precise
calibration of a complex articulated optical path. The optics are subject to large thermal …

Data products from high spectral resolution astronomical polarimeters are often limited by
fringes. Fringes can skew derived magnetic field properties from spectropolarimetric data …

Interference fringes are a major source of systematic error in astronomical
spectropolarimeters. We apply the Berreman formalism with recent spatial fringe aperture …

We outline polarization fringe predictions derived from an application of the Berreman
calculus for the Daniel K. Inouye Solar Telescope (DKIST) retarder optics. The DKIST …

Astronomical mirror coatings are often metals protected by multiple layers of dielectrics.
Varying the thickness and layering of dielectrics causes a significant dependence on the …