Sofia Fatigoni

Sofia Fatigoni is a Researcher at the California Institute of Technology (Caltech), affiliated with the Division of Physics, Mathematics, and Astronomy and the Department of Physics. Her work focuses on experimental cosmology and instrumentation, particularly in the development and optimization of detectors for the BICEP/Keck CMB polarization experiments. She contributes to advancing next-generation CMB observatories, such as the BICEP Array, and addresses technical challenges in cryogenics, calibration, and data analysis. Her research aims to constrain inflationary models through precise measurements of cosmic microwave background polarization.

Key interests include polarization calibration techniques, detector module design, and suppression of systematic errors in CMB observations. She collaborates on projects involving vacuum window materials, multiplexing strategies, and cryogenic systems for low-temperature environments. Fatigoni’s work also explores astrophysical foreground characterization, such as dust polarization and gravitational lensing effects, to improve the accuracy of cosmological measurements.