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Broadband plasma spray anti-reflection coating technology for millimeter-wave astrophysics
Oliver Jeong, Richard Plambeck, Christopher Raum +2
We present a broadband plasma spray anti-reflection (AR) coating technology for millimeter-wave astrophysics experiments with large-format, cryogenic optics. By plasma spraying alu…
LuSEE 'Night': The Lunar Surface Electromagnetics Experiment
Stuart D. Bale, Neil Bassett, Jack O. Burns +18
The Lunar Surface Electromagnetics Explorer 'LuSEE Night' is a low frequency radio astronomy experiment that will be delivered to the farside of the Moon by the NASA Commercial Lun…
The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status
B. Westbrook, P. A. R. Ade, M. Aguilar +90
We present on the status of POLARBEAR-2 A (PB2-A) focal plane fabrication. The PB2-A is the first of three telescopes in the Simon Array (SA), which is an array of three cosmic mic…
Development of the Low Frequency Telescope Focal Plane Detector Modules for LiteBIRD
Benjamin Westbrook, Christopher Raum, Shawn Beckman +23
LiteBIRD is a JAXA-led strategic large-class satellite mission designed to measure the polarization of the cosmic microwave background and Galactic foregrounds from 34 to 448 GHz a…
Development of the characterization methods without electrothermal feedback for TES bolometers for CMB measurements
Yume Nishinomiya, Akito Kusaka, Kenji Kiuchi +6
Superconducting Transition-Edge Sensor (TES) bolometers are used for cosmic microwave background (CMB) observations. We used a testbed to evaluate the thermal performance of TES bo…
Testing magnetic interference between TES detectors and the telescope environment for future CMB satellite missions
Tommaso Ghigna, Thuong Duc Hoang, Takashi Hasebe +11
The two most common components of several upcoming CMB experiments are large arrays of superconductive TES (Transition-Edge Sensor) detectors and polarization modulator units, e.g.…
The Simons Observatory microwave SQUID multiplexing detector module design
Heather McCarrick, Erin Healy, Zeeshan Ahmed +56
Advances in cosmic microwave background (CMB) science depend on increasing the number of sensitive detectors observing the sky. New instruments deploy large arrays of superconducti…
The Design and Integrated Performance of SPT-3G
J. A. Sobrin, A. J. Anderson, A. N. Bender +120
SPT-3G is the third survey receiver operating on the South Pole Telescope dedicated to high-resolution observations of the cosmic microwave background (CMB). Sensitive measurements…
Design and experimental investigation of a planar metamaterial Silicon based lenslet
Thomas Gascard, Giampaolo Pisano, Simon Doyle +9
The next generations of ground-based cosmic microwave background experiments will require polarisation sensitive, multichroic pixels of large focal planes comprising several thousa…
Performance and characterization of the SPT-3G digital frequency-domain multiplexed readout system using an improved noise and crosstalk model
J. Montgomery, P. A. R. Ade, Z. Ahmed +118
The third generation South Pole Telescope camera (SPT-3G) improves upon its predecessor (SPTpol) by an order of magnitude increase in detectors on the focal plane. The technology u…
Overview of the Medium and High Frequency Telescopes of the LiteBIRD satellite mission
L. Montier, B. Mot, P. de Bernardis +232
LiteBIRD is a JAXA-led Strategic Large-Class mission designed to search for the existence of the primordial gravitational waves produced during the inflationary phase of the Univer…
LiteBIRD: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization
M. Hazumi, P. A. R. Ade, A. Adler +233
LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and…
Concept Design of Low Frequency Telescope for CMB B-mode Polarization satellite LiteBIRD
Y. Sekimoto, P. A. R. Ade, A. Adler +232
LiteBIRD has been selected as JAXA's strategic large mission in the 2020s, to observe the cosmic microwave background (CMB) -mode polarization over the full sky at large angular…
Detector fabrication development for the LiteBIRD satellite mission
Benjamin Westbrook, Christopher Raum, Shawn Beckman +24
LiteBIRD is a JAXA-led strategic Large-Class satellite mission designed to measure the polarization of the cosmic microwave background and cosmic foregrounds from 34 to 448 GHz acr…
The optical design of the LiteBIRD Middle and High Frequency Telescope
L. Lamagna, J. E. Gudmundsson, H. Imada +26
LiteBIRD is a JAXA strategic L-class mission devoted to the measurement of polarization of the Cosmic Microwave Background, searching for the signature of primordial gravitational…
Planar Silicon Metamaterial Lenslet Arrays for Millimeter-wavelength Imaging
Christopher M. McKenney, Jason E. Austermann, James A. Beall +7
Large imaging arrays of detectors at millimeter and submillimeter wavelengths have applications that include measurements of the faint polarization signal in the Cosmic Microwave B…
Anomalous Frequency Noise from the Megahertz Channelizing Resonators in Frequency-Division Multiplexed Transition Edge Sensor Readout
John Groh, Kam Arnold, Jessica Avva +11
Superconducting lithographed resonators have a broad range of current and potential applications in the multiplexed readout of cryogenic detectors. Here, we focus on LC bandpass fi…
The Simons Observatory: Metamaterial Microwave Absorber (MMA) and its Cryogenic Applications
Zhilei Xu, Grace E. Chesmore, Shunsuke Adachi +26
Controlling stray light at millimeter wavelengths requires special optical design and selection of absorptive materials that should be compatible with cryogenic operating environme…
Characterization of Transition Edge Sensors for the Simons Observatory
Jason R. Stevens, Nicholas F. Cothard, Eve M. Vavagiakis +31
The Simons Observatory is building both large (6 m) and small (0.5 m) aperture telescopes in the Atacama desert in Chile to observe the cosmic microwave background (CMB) radiation…
Updated design of the CMB polarization experiment satellite LiteBIRD
H. Sugai, P. A. R. Ade, Y. Akiba +216
Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their app…
Commercially fabricated antenna-coupled Transition Edge Sensor bolometer detectors for next generation Cosmic Microwave Background polarimetry experiment
Aritoki Suzuki, Nicholas Cothard, Adrian T. Lee +10
We report on the development of commercially fabricated multi-chroic antenna coupled Transition Edge Sensor (TES) bolometer arrays for Cosmic Microwave Background (CMB) polarimetry…
Design of a testbed for the study of system interference in space CMB polarimetry
Tommaso Ghigna, Tomotake Matsumura, Masashi Hazumi +6
LiteBIRD is a proposed JAXA satellite mission to measure the CMB B-mode polarization with unprecedented sensitivity (). To achieve this goal, state-of-the-art…
Recent Advances in Frequency-Multiplexed TES Readout: Vastly Reduced Parasitics and an Increase in Multiplexing Factor with sub-Kelvin SQUIDs
T. de Haan, A. Suzuki, S. T. P. Boyd +9
Cosmic microwave background (CMB) measurements are fundamentally limited by photon statistics. Therefore, ground-based CMB observatories have been increasing the number of detector…
CMB-S4 Decadal Survey APC White Paper
Kevork Abazajian, Graeme Addison, Peter Adshead +222
We provide an overview of the science case, instrument configuration and project plan for the next-generation ground-based cosmic microwave background experiment CMB-S4, for consid…