Kinetic inductance detectors for the Origins Space Telescope
| Autor: | Jason Glenn, S. Hailey-Dunsheath, Joanna Perido, Charles M. Bradford, J. Redford, Jonas Zmuidzinas, Reinier M. J. Janssen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
Mechanical Engineering Coplanar waveguide Detector Astronomy and Astrophysics 01 natural sciences Multiplexing Noise (electronics) Electronic Optical and Magnetic Materials 010309 optics Inductance Primary mirror Resonator Space and Planetary Science Control and Systems Engineering 0103 physical sciences Electronic engineering Sensitivity (control systems) 010303 astronomy & astrophysics Instrumentation |
| Zdroj: | Journal of Astronomical Telescopes, Instruments, and Systems. 7 |
| ISSN: | 2329-4124 |
| Popis: | The Origins Space Telescope (Origins) will have a 5.9-m diameter primary mirror cooled to 4.5 K and will be equipped with three instruments, two of which will cover the far-IR (λ = 25 to 588 μm). These far-IR instruments will require large arrays (∼104 detectors) of ultrasensitive detectors, with noise equivalent powers (NEPs) as low as 3 × 10 − 20 W Hz − 1/2. Kinetic inductance detectors (KIDs) have already demonstrated the array format, modularity, and readout multiplexing density requirements for Origins; the only aspect that requires improvement is the per-pixel sensitivity. We show how KIDs can meet the sensitivity target, focusing on two existing architectures that together demonstrate the key necessary attributes. Arrays of antenna-coupled coplanar waveguide resonators have achieved NEPs of 3 × 10 − 19 W Hz − 1/2 in laboratory demonstrations at 350 μm; they demonstrate excellent material properties as well as array-level integration and performance. Lumped element detectors such as those under development for balloon-borne spectroscopy at 10 to 350 μm demonstrate flexibility in coupling to shorter-wavelengths, reducing active volume, and providing a means for suppressing capacitor noise. A straightforward combination of the elements of these already-demonstrated devices points to a low-volume design that is expected to meet the Origins sensitivity targets. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|