Abstract The Simons Observatory (SO) is a cosmic microwave background survey
experiment that includes small-aperture telescopes (SATs) observing from an altitude of …

We describe the newest generation of the SLAC Microresonator RF (SMuRF) electronics, a
warm digital control and readout system for microwave-frequency resonator-based …

Single-photon detectors based on the superconducting transition-edge sensor are used in a
number of visible to near-infrared applications, particularly for photon-number-resolving …

We present the requirements, design, and evaluation of the cryogenic continuously rotating
half-wave plate (CHWP) for the Simons Observatory (SO). SO is a cosmic microwave …

We present near-field radio holography measurements of the Simons Observatory Large
Aperture Telescope Receiver optics. These measurements demonstrate that radio …

Abstract The Simons Observatory (SO) experiment is a cosmic microwave background
(CMB) experiment located in the Atacama Desert, Chile. The SO's small aperture telescopes …

We report on the use of a kinetic-inductance traveling-wave parametric amplifier (KITWPA)
as the first amplifier in the readout chain of a microwave superconducting quantum …

Abstract The Simons Observatory (SO) is a cosmic microwave background instrumentation
suite being deployed in the Atacama Desert in northern Chile. The telescopes within SO use …

Abstract The Simons Observatory will map the temperature and polarization over half of the
sky at millimeter wavelengths in six spectral bands from the Atacama Desert in Chile. These …

Abstract The Simons Observatory (SO) is a cosmic microwave background instrumentation
suite in the Atacama Desert of Chile. More than 65,000 polarization-sensitive transition-edge …