Search Results - "Walter, Alex B."
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DARKNESS: A Microwave Kinetic Inductance Detector Integral Field Spectrograph for High-contrast Astronomy
Published in Publications of the Astronomical Society of the Pacific (01-06-2018)“…We present DARKNESS (the DARK-speckle Near-infrared Energy-resolving Superconducting Spectrophotometer), the first of several planned integral field…”
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Flexible Coaxial Ribbon Cable for High-Density Superconducting Microwave Device Arrays
Published in IEEE transactions on applied superconductivity (01-01-2021)“…Superconducting electronics often require high-density microwave interconnects capable of transporting signals between temperature stages with minimal loss,…”
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Stochastic Speckle Discrimination with Time-tagged Photon Lists: Digging below the Speckle Noise Floor
Published in Publications of the Astronomical Society of the Pacific (01-11-2019)“…We present an algorithm that uses the distribution of photon arrival times to distinguish speckles from incoherent sources, like planets and disks, in…”
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4
Highly multiplexible thermal kinetic inductance detectors for x-ray imaging spectroscopy
Published in Applied physics letters (22-06-2015)“…For X-ray imaging spectroscopy, high spatial resolution over a large field of view is often as important as high energy resolution, but current X-ray detectors…”
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5
Design and performance of hafnium optical and near-IR kinetic inductance detectors
Published in Applied physics letters (18-11-2019)“…We report on the design and performance of microwave kinetic inductance detectors (MKIDs) sensitive to single photons in the optical to near-infrared range…”
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6
Laminated NbTi-on-Kapton Microstrip Cables for Flexible Sub-Kelvin RF Electronics
Published in IEEE transactions on applied superconductivity (01-01-2018)“…Large arrays of superconducting devices such as microwave kinetic inductance detectors require high density interconnects from higher temperatures with minimal…”
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7
Stochastic Speckle Discrimination with Time-tagged Photon Lists: Digging below the Speckle Noise Floor
Published in Publications of the Astronomical Society of the Pacific (01-11-2019)“…We present an algorithm that uses the distribution of photon arrival times to distinguish speckles from incoherent sources, like planets and disks, in…”
Get full text
Journal Article -
8
DARKNESS: A Microwave Kinetic Inductance Detector Integral Field Spectrograph for High-contrast Astronomy
Published in Publications of the Astronomical Society of the Pacific (01-06-2018)“…We present DARKNESS (the DARK-speckle Near-infrared Energy-resolving Superconducting Spectrophotometer), the first of several planned integral field…”
Get full text
Journal Article -
9
Experimental demonstration of spectral linear dark field control at NASA's high contrast imaging testbeds
Published 29-09-2023“…Due to the low flux of exoEarths, long exposure times are required to spectrally characterize them. During these long exposures, the contrast in the dark hole…”
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10
End-to-end Deep Learning Pipeline for Microwave Kinetic Inductance Detector (MKID) Resonator Identification and Tuning
Published 02-04-2021“…We present the development of a machine learning based pipeline to fully automate the calibration of the frequency comb used to read out optical/IR Microwave…”
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Dual Purpose Lyot Coronagraph Masks for Simultaneous High-Contrast Imaging and High-Resolution Wavefront Sensing
Published 21-08-2023“…Proc. SPIE 1268018 (2023) Directly imaging Earth-sized exoplanets with a visible-light coronagraph instrument on a space telescope will require a system that…”
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12
Stochastic Speckle Discrimination with Time-Tagged Photon Lists: Digging Below the Speckle Noise Floor
Published 07-06-2019“…PASP, 131, 2019, 114506 We present an algorithm that uses the distribution of photon arrival times to distinguish speckles from incoherent sources, like…”
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13
Second Generation Readout For Large Format Photon Counting Microwave Kinetic Inductance Detectors
Published 12-11-2020“…We present the development of a second generation digital readout system for photon counting microwave kinetic inductance detector (MKID) arrays operating in…”
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14
Design and Performance of Hafnium Optical and Near-IR Kinetic Inductance Detectors
Published 15-11-2019“…We report on the design and performance of Microwave Kinetic Inductance Detectors (MKIDs) sensitive to single photons in the optical to near-infrared range…”
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15
Flexible Coaxial Ribbon Cable for High-Density Superconducting Microwave Device Arrays
Published 13-07-2020“…Superconducting electronics often require high-density microwave interconnects capable of transporting signals between temperature stages with minimal loss,…”
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Journal Article -
16
Highly Multiplexible Thermal Kinetic Inductance Detectors for X-Ray Imaging Spectroscopy
Published 24-06-2015“…For X-ray imaging spectroscopy, high spatial resolution over a large field of view is often as important as high energy resolution, but current X-ray detectors…”
Get full text
Journal Article -
17
DARKNESS: A Microwave Kinetic Inductance Detector Integral Field Spectrograph for High-Contrast Astronomy
Published 17-04-2018“…Publications of the Astronomical Society of the Pacific, Volume 130, Number 988, 065001 (2018) We present DARKNESS (the DARK-speckle Near-infrared…”
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18
SCExAO, an instrument with a dual purpose: perform cutting-edge science and develop new technologies
Published 21-09-2018“…Proceedings Volume 10703, Adaptive Optics Systems VI; 1070359 (2018) The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is an extremely…”
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