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Article
Demonstration of 220/280 GHz Multichroic Feedhorn-Coupled TES Polarimeter
We describe the design and measurement of feedhorn-coupled, transition-edge sensor (TES) polarimeters with two passbands centered at 220 GHz and 280 GHz, intended for observations of the cosmic microwave backg...
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Article
Advanced ACTPol Low-Frequency Array: Readout and Characterization of Prototype 27 and 39 GHz Transition Edge Sensors
Advanced ACTPol (AdvACT) is a third-generation polarization upgrade to the Atacama Cosmology Telescope, designed to observe the cosmic microwave background (CMB). AdvACT expands on the 90 and 150 GHz transitio...
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Article
Pushing the Limits of Broadband and High-Frequency Metamaterial Silicon Antireflection Coatings
Broadband refractive optics realized from high-index materials provide compelling design solutions for the next generation of observatories for the cosmic microwave background and for sub-millimeter astronomy....
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Article
The Advanced ACTPol 27/39 GHz Array
Advanced ACTPol (AdvACT) will observe the temperature and polarization of the cosmic microwave background (CMB) at multiple frequencies and high resolution to place improved constraints on inflation, dark matt...
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Article
Millimeter-Wave Polarimeters Using Kinetic Inductance Detectors for TolTEC and Beyond
Microwave kinetic inductance detectors (MKIDs) provide a compelling path forward to the large-format polarimeter, imaging, and spectrometer arrays needed for next-generation experiments in millimeter-wave cosm...
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Article
Characterization of the Mid-Frequency Arrays for Advanced ACTPol
The Advanced ACTPol upgrade on the Atacama Cosmology Telescope aims to improve the measurement of the cosmic microwave background anisotropies and polarization, using four new dichroic detector arrays fabricat...
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Article
Design and Deployment of a Multichroic Polarimeter Array on the Atacama Cosmology Telescope
We present the design and the preliminary on-sky performance with respect to beams and passbands of a multichroic polarimeter array covering the 90 and 146 GHz cosmic microwave background bands and its enablin...
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Article
Characterizing Atacama B-mode Search Detectors with a Half-Wave Plate
The Atacama B-Mode Search (ABS) instrument is a cryogenic ( \(\sim \) ∼ ...
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Article
Advanced ACTPol Cryogenic Detector Arrays and Readout
Advanced ACTPol is a polarization-sensitive upgrade for the 6 m aperture Atacama Cosmology Telescope, adding new frequencies and increasing sensitivity over the previous ACTPol receiver. In 2016, Advanced ACTP...
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Article
The First Multichroic Polarimeter Array on the Atacama Cosmology Telescope: Characterization and Performance
The Atacama Cosmology Telescope Polarimeter (ACTPol) is a polarization sensitive receiver for the 6-m Atacama Cosmology Telescope (ACT) and measures the small angular scale polarization anisotropies in the cos...
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Article
Advanced ACTPol Multichroic Polarimeter Array Fabrication Process for 150 mm Wafers
Advanced ACTPol (AdvACT) is a third-generation cosmic microwave background receiver to be deployed in 2016 on the Atacama Cosmology Telescope (ACT). Spanning five frequency bands from 25 to 280 GHz and having ...
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Article
High-Density Superconducting Cables for Advanced ACTPol
Advanced ACTPol (AdvACT) is an upcoming Atacama Cosmology Telescope (ACT) receiver upgrade, scheduled to deploy in 2016, that will allow measurement of the cosmic microwave background polarization and temperat...
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Article
Injured astrocytes are repaired by Synaptotagmin XI-regulated lysosome exocytosis
Astrocytes are known to facilitate repair following brain injury; however, little is known about how injured astrocytes repair themselves. Repair of cell membrane injury requires Ca2+-triggered vesicle exocytosis...
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Article
Erratum to: In Situ Time Constant and Optical Efficiency Measurements of TRUCE Pixels in the Atacama B-Mode Search
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Article
In Situ Time Constant and Optical Efficiency Measurements of TRUCE Pixels in the Atacama B-Mode Search
The Atacama B-mode Search (ABS) instrument, which began observation in February of 2012, is a crossed-Dragone telescope located at an elevation of 5,100 m in the Atacama Desert in Chile. The primary scientific...
