| Autor: |
D. J. Thoen, K. Karatsu, Jochem J. A. Baselmans, Shahab Oddin Dabironezare, Alejandro Pascual Laguna, Akira Endo, Vignesh Murugesan, Stephen J. C. Yates, Nuria Llombart |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X. |
| DOI: |
10.1117/12.2562383 |
| Popis: |
DESHIMA 2.0 is a sub-millimetre wave spectrometer based on a single superconducting chip with a large instantaneous bandwidth. The instrument consists of a Quasi-optical (QO) system and an on-chip filter-bank coupled to an array of Kinetic Inductance Detectors (KID). In this work, this broad band QO system, operating at sub-millimetre wavelengths (220 GHz to 720 GHz), will be presented. This design is achieved using a field matching technique and consists of a hyper-hemispherical leaky lens antenna coupled to a series of Dragonian reflectors. The optimized design has an average illumination efficiency over the band of ~70%. This performance is also measured directly through the response of the KIDs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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