UC Berkeley

Cosmic microwave background (CMB) experiments have paved the way towards a greater understanding of early universe physics and building a standard model of cosmology. In this dissertation, we report on the development, integration, testing, and deployment of the ultra-high-frequency small aperture telescope for the Simons Observatory (SO). We also discuss development and optimization of detector arrays for CMB experiments, and describe the SO low-frequency wafers in detail. This work also directly impacts developments for CMB-S4 and LiteBIRD. We also discuss the ongoing calibration and scan strategy efforts in SO as the experiment moves towards initial science observations.