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arXiv · 2610.12051

On-chip filled array hyperspectral kinetic inductance detectors (FHYKID) for line intensity mapping

Emile Prêle·Martino Calvo·Usasi Chowdhury·Gregory Garde·Florence Levy-Bertrand·Alessandro Monfardini
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Abstract

The next generation Line Intensity Mapping (LIM) experiments will require very high throughput instrumentation, and as a consequence high pixel counts focal planes. For the study of the [CII] line in the redshift range z=7-8, we develop a hyperspectral filled focal plane (FHYKID) operating in the range 210-235 GHz and with a spectral resolution reaching 120. The spectral filtering is achieved thanks to planar Slot Split Ring Resonators (SSRR) coupled to Lumped Element Kinetic Inductance Detectors (LEKID). This robust concept achieves, thanks to its simplicity, large quantum efficiency and is scalable, even with current readout electronics systems, to several tens of thousands beams on Sky. Our FHYKID will be one of the four channels of the NIKONA instrument, currently seeking funding and to be installed at the IRAM 30-meter telescope at Pico Veleta. Among the science goals, simultaneously mapping the local (galactic and nearby-galaxies) CO line and the cosmological [CII].

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Emile Prêle, Martino Calvo, Usasi Chowdhury, Gregory Garde, Florence Levy-Bertrand, Alessandro Monfardini. 2026-10-08. On-chip filled array hyperspectral kinetic inductance detectors (FHYKID) for line intensity mapping. https://doi.org/10.1117/12.3103640

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