A5071479614- Superconducting and THz Device Technology
- Calibration and Measurement Techniques
- Astronomy and Astrophysical Research
- Spacecraft and Cryogenic Technologies
- Physics of Superconductivity and Magnetism
- Particle Detector Development and Performance
- CCD and CMOS Imaging Sensors
- Photonic and Optical Devices
- Astronomical Observations and Instrumentation
- Radio Astronomy Observations and Technology
- Advanced Thermodynamic Systems and Engines
- Stellar, planetary, and galactic studies
- Mechanical and Optical Resonators
- Scientific Research and Discoveries
- Superconducting Materials and Applications
- Radio Frequency Integrated Circuit Design
- Advanced Thermodynamics and Statistical Mechanics
- Galaxies: Formation, Evolution, Phenomena
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Terahertz technology and applications
- Spectroscopy and Laser Applications
- Astrophysics and Star Formation Studies
- Advanced Semiconductor Detectors and Materials
- Transition Metal Oxide Nanomaterials
California Institute of Technology
2023-2024
Jet Propulsion Laboratory
2023-2024
University of California, Berkeley
2020-2021
Lawrence Berkeley National Laboratory
2020
We report measurements characterizing the performance of a kinetic inductance detector array designed for wavelength 25 microns and very low optical background level suitable applications such as far-infrared instrument on cryogenically cooled space telescope. In pulse-counting mode operation at flux, detectors can resolve individual 25-micron photons. an integrating mode, remain photon noise limited over more than 6 orders magnitude in absorbed power from 70 zW to 200 fW, with limiting...
We report measurements characterizing the performance of a kinetic inductance detector array designed for wavelength 25 microns and very low optical background level suitable applications such as far-infrared instrument on cryogenically cooled space telescope. In pulse counting mode operation at flux, detectors can resolve individual 25-micron photons. an integrating mode, remain photon noise limited over more than six orders magnitude in absorbed power from 70 zW to 200 fW, with limiting...
Future space-based far-infrared astrophysical observatories will require exquis-itely sensitive detectors consistent with the low optical backgrounds. The PRobe far-Infrared Mission for Astrophysics (PRIMA) deploy arrays of thousands superconducting kinetic inductance (KIDs) to radiation between 25 and 265 $\mu$m. Here, we present laboratory characterization prototype, -- 80 $\mu$m wavelength, low-volume, aluminum KIDs designed low-background environment expected PRIMA. A compact parallel...
The PRobe far-Infrared Mission for Astrophysics (PRIMA) is under study as a potential far-IR space mission, featuring actively cooled optics, and both imaging spectroscopic instrumentation. To fully take advantage of the low background afforded by cold telescope, spectroscopy with PRIMA requires detectors noise equivalent power (NEP) better than $1 \times 10^{-19}$ W Hz$^{-1/2}$. meet this goal we are developing large format arrays kinetic inductance (KIDs) to work across $25-250$ micron...
Ground-based observatories across a wide range of wavelengths implement cryogenic cooling techniques to increase the sensitivity instruments and enable low temperature detector technologies. Commercial pulse tube cryocoolers (PTCs) are frequently used provide 40 K 4 stages as thermal shells in scientific instruments. However, PTC operation is dependent on gravity, giving rise changes capacity over operational tilt pointed telescopes. We present study performance two stage with 1.8 W at 4.2...
The PRobe far-Infrared Mission for Astrophysics (PRIMA) is a future cryogenic space observatory that will revolutionize study of evolving galaxies and forming planetary systems with highly-sensitive far-infrared (far-IR) imaging spectroscopy. PRIMA's spectrometer, the Far-InfraRed Enhanced Survey Spectrometer (FIRESS), deploy kilo-pixel aluminum kinetic inductance detector (KID) arrays covering wavelengths from 24-235 μm. Here we present optical characterization prototype FIRESS array...
We present preparation for fabrication and deployment of science-grade kilo-pixel Kinetic Inductance Detector (KID) based arrays the Terahertz Intensity Mapper (TIM). TIM is a NASA-funded balloon-borne experiment planning its Antarctic flight 2026. employs two focal planes, each with four subarrays ~900 hexagonal-packed, horn-coupled aluminum KIDs. Fabrication yield high, we have successfully mapped KID resonant frequencies to spatial locations our LED mapper. The frequency information...
FIRESS is the multi-purpose spectrometer proposed for PRobe far-Infrared Mission Astrophysics (PRIMA). The sensitive on cold telescope provide factors of 1,000 to 100,000 improvement in spatial-spectral mapping speed relative Herschel, accessing galaxies across arc cosmic history via their dust-immune far-infrared spectral diagnostics. covers 24 235 micron range with four slit-fed grating modules providing resolving power between 85 and 130. slits overlap pairs so that a complete spectrum...
The Probe far-Infrared Mission for Astrophysics (PRIMA) is a proposed space observatory which will use arrays of thousands kinetic inductance detectors (KIDs) to perform low- and moderate-resolution spectroscopy throughout the far-infrared. must have noise equivalent powers (NEPs) at or below 0.1 aW/sqrt(Hz) be subdominant from sky backgrounds thermal PRIMA's cryogenically cooled primary mirror. Using Radio Frequency System on Chip multitone readout, we measure NEPs flight-like array...
We report on efforts to improve the speed of low-G far-infrared transition-edged-sensed bolometers. use a fabrication process that does not require any dry etch steps reduce heat capacity suspended device and measure reduction in detector time constant. However, we also an increase temperature-normalized thermal conductance (G) corresponding noise-equivalent power (NEP). employ new near-IR photon-noise technique using laser calibrate frequency-domain multiplexed AC system compare results...
Far-infrared (far-IR) astrophysics missions featuring actively cooled telescopes will offer orders of magnitude observing speed improvement at wavelengths where galaxies and forming planetary systems emit most their light. The PRobe far-Infrared Mission for Astrophysics (PRIMA), which is currently under study, emphasizes low moderate resolution spectroscopy throughout the far-IR. Full utilization PRIMA's cold telescope requires far-IR detector arrays with per-pixel noise equivalent powers...
The PRobe far-Infrared Mission for Astrophysics (PRIMA) is working to develop kinetic inductance detectors (KIDs) that can meet the sensitivity targets of a far-infrared spectrometer on cryogenically cooled space telescope. An important ingredient achieving high increasing fractional-frequency responsivity. Here we present study responsivity aluminum KIDs fabricated at Jet Propulsion Laboratory. Specifically, model KID's temporal response pair-breaking excitations in framework Mattis-Bardeen...
We report on the development of commercially fabricated multi-chroic antenna coupled Transition Edge Sensor (TES) bolometer arrays for Cosmic Microwave Background (CMB) polarimetry experiments. The orders magnitude increase in detector count next generation CMB experiments require a new approach wafer production to fabrication throughput. We describe collaborative efforts with commercial superconductor electronics facility (SeeQC Inc.) fabricate application. have successfully...
Ground-based observatories across a wide range of wavelengths implement cryogenic cooling techniques to increase the sensitivity cameras and enable low temperature receiver technologies. Commercial pulse tube cryocoolers (PTCs) are frequently used provide 40 K 4 stages as thermal shells in cameras. However, PTC operation is dependent on gravity, giving rise changes capacity over operational tilt pointed telescopes. We present study performance designed 2.0 W at 4.2 55 45 (Cryomech PT420-RM)...