Cold optical design for the Large Aperture Simons Observatory telescope
arXiv:1808.05058
Abstract
The Simons Observatory will consist of a single large (6 m diameter) telescope and a number of smaller (0.5 m diameter) refracting telescopes designed to measure the polarization of the Cosmic Microwave Background to unprecedented accuracy. The large aperture telescope is the same design as the CCAT-prime telescope, a modified Crossed Dragone design with a field-of-view of over 7.8 degrees diameter at 90 GHz. This paper presents an overview of the cold reimaging optics for this telescope and what drove our choice of 350-400 mm diameter silicon lenses in a 2.4 m cryostat over other possibilities. We will also consider the future expandability of this design to CMB Stage-4 and beyond.
References in corpus (5)
- The South Pole Telescope
- BICEP3 performance overview and planned Keck Array upgrade
- The optical design of the six-meter CCAT-prime and Simons Observatory telescopes
- Epoxy-based broadband anti-reflection coating for millimeter-wave optics
- Pushing the Limits of Broadband and High Frequency Metamaterial Silicon Antireflection Coatings