Dual-Color Antenna-Coupled LEKID for Next-Generation Multi-chroic CMB Focal Planes

Traini, Alessandro; Tartari, A.; Bordier, G.; Boussaha, Faouzi; Chaumont, Christine; Beldi, Samir; Reix, Florent; Piat, M.

doi:10.1007/s10909-018-2038-5

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Additionally, to achieve B-mode reduction, it's imperative to observe the sky across multiple frequency bands due to foreground emissions from both galactic and extra-galactic sources [5,6]. Antennacoupled detectors, designed to capture broadband frequency, polarization-selective sensitivity, and incorporating on-chip band-pass filters, emerge as a compact solution for multichroic CMB detectors [7].…”

Section: Introductionmentioning

confidence: 99%

Development of Double Flare Angle bowtie slot Antenna for Multichroic CMB Polarization Detectors

Pham,

Hu,

Prêle

et al. 2023

Preprint

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Lens antenna-coupled detectors have emerged as a prominent technology for future millimeter-wave astronomy, particularly in observing Cosmic Microwave Background (CMB) B-Mode. Given this context, we reconfigured the conventional broadband bowtie slot antenna into a double flare angle design, targeting CMB emission wavelengths centered at 150 and 220 GHz. This antenna exhibits a return loss S11 < −10 dB over more than an octave 100 - 300 GHz and delivers a bandwidth exceeding 20% for the two targeted sub-bands. When integrated with a dielectric lens, it retains effective linear polarization sensitivity, with cross-polarization below -15 dB at both sub-bands. Incorporating on-chip bandpass filters enables the separation of the antenna’s signals to microwave kinetic inductance detectors (MKIDs), constructing a compact, polarization-selective, multichroic pixel.

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Section: Introductionmentioning

confidence: 99%

Development of Double Flare Angle bowtie slot Antenna for Multichroic CMB Polarization Detectors

Pham,

Hu,

Prêle

et al. 2023

Preprint

Self Cite

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“…The natural choice for spectroscopic mapping is to use multichannel photometers, either on-chip (see e.g., Traini et al 2018) or grating (see e.g., Crites et al 2014), because they minimize the noise while simultaneously measuring different frequencies, as the optical load is divided over the different channels, minimizing the photon noise. The drawbacks of such techniques are the conception of large arrays dedicated to a single frequency bin, which massively increase the total pixel number, or a reduction of the field of view (FoV) adopting different techniques.…”

Section: Introductionmentioning

confidence: 99%

Accurate sky signal reconstruction for ground-based spectroscopy with kinetic inductance detectors

Fasano

Macías-Pérez

Benoı̂t

et al. 2021

A&A

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Context. Wide-field spectrometers are needed to deal with current astrophysical challenges that require multiband observations at millimeter wavelengths. An example of these is the KIDs Interferometer Spectrum Survey (KISS), which uses two arrays of kinetic inductance detectors (KIDs) coupled to a Martin-Puplett interferometer (MPI). KISS has a wide instantaneous field of view (1 deg in diameter) and a spectral resolution of up to 1.45 GHz in the 120-180 GHz electromagnetic band. The instrument is installed on the 2.25 m Q-U-I JOint TEnerife telescope at the Teide Observatory (Tenerife, Canary Islands), at an altitude of 2 395 m above sea level. Aims. This work presents an original readout modulation method developed to improve the sky signal reconstruction accuracy for types of instruments for which a fast sampling frequency is required, both to remove atmospheric fluctuations and to perform full spectroscopic measurements on each sampled sky position. Methods. We first demonstrate the feasibility of this technique using simulations. We then apply such a scheme to on-sky calibration. Results. We show that the sky signal can be reconstructed to better than 0.5 % for astrophysical sources, and to better than 2 % for large background variations such as in "skydip", in an ideal noiseless scenario. The readout modulation method is validated by observations on-sky during the KISS commissioning campaign. Conclusions. We conclude that accurate photometry can be obtained for future KID-based interferometry using the MPI.

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Double-Flare Angle Bowtie Slot Antenna for Multichroic CMB Polarization Detectors

Dung,

Hu,

Prêle

et al. 2024

J Low Temp Phys

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Dual-Color Antenna-Coupled LEKID for Next-Generation Multi-chroic CMB Focal Planes

Cited by 4 publications

References 6 publications

Development of Double Flare Angle bowtie slot Antenna for Multichroic CMB Polarization Detectors

Development of Double Flare Angle bowtie slot Antenna for Multichroic CMB Polarization Detectors

Accurate sky signal reconstruction for ground-based spectroscopy with kinetic inductance detectors

Double-Flare Angle Bowtie Slot Antenna for Multichroic CMB Polarization Detectors

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