Design and Electrical Performance of the Kinetic Inductance Detectors of the OLIMPO Experiment

Paiella, A.; Battistelli, E. S.; Columbro, F.; Castellano, M. G.; Colantoni, I.; Gordon, Samuel; Mauskopf, Philip; Coppolecchia, A.; D’Alessandro, G.; Bernardis, P. de; Lamagna, L.; Masi, S.

doi:10.1109/isec.2017.8314223

Cited by 9 publications

(8 citation statements)

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“…A first generation of detectors had been built to have Q c < 5 × 10 3 , with t Al = 40 nm. These detectors had indeed a huge dynamic range, but the responsivity was low [24]. Given the capacitance of each detector C, the coupling capacitance can be obtained from [20]…”

Section: Electrical Simulationsmentioning

confidence: 99%

Kinetic inductance detectors for the OLIMPO experiment: design and pre-flight characterization

Paiella¹,

Coppolecchia²,

Lamagna³

et al. 2019

J. Cosmol. Astropart. Phys.

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We designed, fabricated, and characterized four arrays of horn-coupled, lumped element kinetic inductance detectors (LEKIDs), optimized to work in the spectral bands of the balloon-borne OLIMPO experiment. OLIMPO is a 2.6 m aperture telescope, aimed at spectroscopic measurements of the Sunyaev-Zel'dovich (SZ) effect. OLIMPO will also validate the LEKID technology in a representative space environment. The corrected focal plane is filled with diffraction limited horn-coupled KID arrays, with 19, 37, 23, 41 active pixels respectively at 150, 250, 350, and 460 GHz.Here we report on the full electrical and optical characterization performed on these detector arrays before the flight. In a dark laboratory cryostat, we measured the resonator electrical parameters, such as the quality factors and the electrical responsivities, at a base temperature of 300 mK. The measured average resonator Qs are 1.7 × 10 4 , 7.0 × 10 3 , 1.0 × 10 4 , and 1.0 × 10 4 for the 150, 250, 350, and 460 GHz arrays, respectively. The average electrical phase responsivities on resonance are 1.4 rad/pW, 1.5 rad/pW, 2.1 rad/pW, and 2.1 rad/pW; the electrical noise equivalent powers are 45 aW/ √ Hz, 160 aW/ √ Hz, 80 aW/ √ Hz, and 140 aW/ √ Hz, at 12 Hz. In the OLIMPO cryostat, we measured the optical properties, such as the noise equivalent temperatures (NET) and the spectral responses. The measured NET RJ s are 200 µK √ s, 240 µK √ s, 240 µK √ s, and 340 µK √ s, at 12 Hz; under 78, 88, 92, and 90 mK Rayleigh-Jeans blackbody load changes respectively for the 150, 250, 350, and 460 GHz arrays. The spectral responses were characterized with the OLIMPO differential Fourier transform spectrometer (DFTS) up to THz frequencies, with a resolution of 1.8 GHz.

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Section: Electrical Simulationsmentioning

confidence: 99%

Kinetic inductance detectors for the OLIMPO experiment: design and pre-flight characterization

Paiella¹,

Coppolecchia²,

Lamagna³

et al. 2019

J. Cosmol. Astropart. Phys.

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“…For the design of the ASI/KIDS LEKID array, we started from the experience gained with the 150 GHz array of the OLIMPO experiment [56,57] and with a R&D activity of W-band LEKIDs [58,59], and remembering that they have to be operated in space. Therefore, since the background radiation experienced by detectors operated in space is lower than that experienced by detectors oper-ated in the stratosphere, we can focus on the maximisation of the detector responsivity at the expense of the detector dynamics.…”

Section: Detector Array Design Simulations and Fabricationmentioning

confidence: 99%

Total power horn-coupled 150 GHz LEKID array for space applications

Paiella,

Coppolecchia,

de Bernardis

et al. 2021

Preprint

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We have developed two arrays of lumped element kinetic inductance detectors working in the D-band, and optimised for the low radiative background conditions of a satellite mission aiming at precision measurements of the Cosmic Microwave Background (CMB). The first detector array is sensitive to the total power of the incoming radiation to which is coupled via single-mode waveguides and corrugated feed-horns, while the second is sensitive to the polarisation of the radiation thanks to orthomode transducers.Here, we focus on the total power detector array, which is suitable, for instance, for precision measurements of unpolarised spectral distortions of the CMB, where detecting both polarisations provides a sensitivity advantage. We describe the optimisation of the array design, fabrication and packaging, the dark and optical characterisation, and the performance of the black-body calibrator used for the optical tests. We show that almost all the detectors of the array are photon-noise limited under the radiative background of a 3.6 K black-body. This result, combined with the weak sensitivity to cosmic rays hits demonstrated with the OLIMPO flight, validates the idea of using lumped elements kinetic inductance detectors for precision, space-based CMB missions.

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“…The design, simulation and fabrication of the detector arrays of OLIMPO are described in detail in [23,24]. Here, we report a brief summary.…”

Section: Detector Design and Simulationsmentioning

confidence: 99%

In-Flight Performance of the LEKIDs of the OLIMPO Experiment

et al. 2020

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We describe the in-flight performance of the horn-coupled Lumped Element Kinetic Inductance Detector arrays of the balloon-borne OLIMPO experiment. These arrays have been designed to match the spectral bands of OLIMPO: 150, 250, 350, and 460 GHz, and they have been operated at 0.3 K and at an altitude of 37.8 km during the stratospheric flight of the OLIMPO payload, in Summer 2018. During the first hours of flight, we tuned the detectors and verified their large dynamics under the radiative background variations due to elevation increase of the telescope and to the insertion of the plug-in room-temperature differential Fourier transform spectrometer into the optical chain. We have found that the detector noise equivalent powers are close to be photon-noise limited and lower than those measured on the ground. Moreover, the data contamination due to primary cosmic rays hitting the arrays is less than 3% for all the pixels of all the arrays, and less than 1% for most of the pixels. These results can be considered the first step of KID technology validation in a representative space environment.

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Design and Electrical Performance of the Kinetic Inductance Detectors of the OLIMPO Experiment

Cited by 9 publications

References 0 publications

Kinetic inductance detectors for the OLIMPO experiment: design and pre-flight characterization

Kinetic inductance detectors for the OLIMPO experiment: design and pre-flight characterization

Total power horn-coupled 150 GHz LEKID array for space applications

In-Flight Performance of the LEKIDs of the OLIMPO Experiment

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