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8 papers · 2 filters
A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths
H. McCarrick, D. Flanigan, G. Jones +15
We discuss the design and measured performance of a titanium nitride (TiN) mesh absorber we are developing for controlling optical crosstalk in horn-coupled lumped-element kinetic…
A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument
Sean Bryan, Peter Ade, Mandana Amiri +47
We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the Cosmic Microwav…
WSPEC: A waveguide filter-bank focal plane array spectrometer for millimeter wave astronomy and cosmology
Sean Bryan, James Aguirre, George Che +9
Imaging and spectroscopy at (sub-)millimeter wavelengths are key frontiers in astronomy and cosmology. Large area spectral surveys with moderate spectral resolution (R=50-200) will…
BFORE: The B-mode Foreground Experiment
Michael D. Niemack, Peter Ade, Francesco de Bernardis +19
The B-mode Foreground Experiment (BFORE) is a proposed NASA balloon project designed to make optimal use of the sub-orbital platform by concentrating on three dust foreground bands…
The Thermal Design, Characterization, and Performance of the SPIDER Long-Duration Balloon Cryostat
J. E. Gudmundsson, P. A. R. Ade, M. Amiri +40
We describe the SPIDER flight cryostat, which is designed to cool six millimeter-wavelength telescopes during an Antarctic long-duration balloon flight. The cryostat, one of the la…
WSPEC: A Waveguide Filter Bank Spectrometer
George Che, Sean Bryan, Matthew Underhill +7
We have designed, fabricated, and measured a 5-channel prototype spectrometer pixel operating in the WR10 band to demonstrate a novel moderate-resolution (R=f/Δf~100), multi-pixel,…