| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Wollack, Edward
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2022Plasma based production of AlF<SUB>3</SUB>-passivated aluminum mirrors for UVOIR astronomycitations
- 2022Characterization of aerogel scattering filters for astronomical telescopes
- 2022Testing CMB Anomalies in E-mode Polarization with Current and Future Data
- 2021Process for fabricating one or more ultra-large area nanoscale polymer films
- 2021Fabricating ultra-thin structured polymer films
- 2021The Simons Observatory: metamaterial microwave absorber and its cryogenic applications.citations
- 2020The CLASS 150/220 GHz Polarimeter Array: Design, Assembly, and Characterizationcitations
- 2019Low-Loss Microstrip Transmission Line Fabricated with Improved Liftoff Process
- 2018Modeling Strategies for Superconducting Microstrip Transmission Line Structurescitations
- 2017Superconducting Vacuum-Gap Crossovers for High Performance Microwave Applicationscitations
- 2016Superconducting Vacuum-Gap Crossovers for High Performance Microwave Applications
- 2016Wide-stopband aperiodic phononic filterscitations
- 2016Silicon-Based Antenna-Coupled Polarization-Sensitive Millimeter-Wave Bolometer Arrays for Cosmic Microwave Background Instrumentscitations
- 2014A Cryogenic Infrared Calibration Targetcitations
- 2008Compact Low-Loss Planar Magic-T
- 2007Electromagnetic and Thermal Properties of a Conductively Loaded Epoxycitations
- 2005Ultra-Compact Broadband High-Spurious Suppression Bandpass Filter Using Double Split-end Stepped Impedance Resonators
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article
A Cryogenic Infrared Calibration Target
Abstract
A compact cryogenic calibration target is presented that has a peak diffuse reflectance, $R0.003$, from $800-4,800\,{ cm}^{-1}$ $(12-2\,$m). Upon expanding the spectral range under consideration to $400-10,000\,{ cm}^{-1}$ $(25-1\,$m) the observed performance gracefully degrades to $R0.02$ at the band edges. In the implementation described, a high-thermal-conductivity metallic substrate is textured with a pyramidal tiling and subsequently coated with a thin lossy dielectric coating that enables high absorption and thermal uniformity across the target. The resulting target assembly is lightweight, has a low-geometric profile, and has survived repeated thermal cycling from room temperature to $\,$K. Basic design considerations, governing equations, and test data for realizing the structure described are provided. The optical properties of selected absorptive materials -- Acktar Fractal Black, Aeroglaze Z306, and Stycast 2850 FT epoxy loaded with stainless steel powder -- are characterized and presented.