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.
|Publication status||Published - 2020|
|Event||Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X - Virtual/online event due to COVID-19 |
Duration: 14 Dec 2020 → 18 Dec 2020
|Conference||Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X|
|Abbreviated title||Spie 11453|
|Period||14/12/20 → 18/12/20|