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SPT-3G+: A Cosmic Microwave Background Experiment for the South Pole Telescope
T. Natoli, Z. Ahmed, H. Athreya +72
SPT-3G+ is the next survey receiver planned to be installed in early 2029 on the 10-meter South Pole Telescope (SPT). This new receiver will feature 6,020 polarization-sensitive di…
The SPT-3G+ receiver design
H. Athreya, Z. Ahmed, J. E. Austermann +71
We present the thermo-mechanical design of the cryostat and camera optics for SPT-3G+, a new receiver being developed for the South Pole Telescope (SPT). The receiver consists of 1…
Laser-micromachined silicon-platelet feedhorns for large-scale submillimeter and millimeter-wave focal planes
Jason E. Austermann, James Beall, Andrew Forsman +10
We present the fabrication and characterization of the first silicon-platelet feedhorn arrays produced using laser micromachining. First, we present a demonstration of the technolo…
CCAT: Silicon-Platelet Feedhorns for Submillimeter Wavelengths
Jason Austermann, James Beall, James R. Burgoyne +12
Silicon-platelet feedhorn arrays are an established technology at millimeter wavelengths that, for some applications, can provide significant advantages over traditional direct-mac…