Matching of Radiation with Array of Planar Antennas with SINIS Bolometers in an Integrating Cavity

Tarasov, M. A.; Chekushkin, Artem; Yusupov, R. A.; Gunbina, A. A.; Édelman, V. S.

doi:10.1134/s1064226920010064

Cited by 9 publications

(6 citation statements)

References 10 publications

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“…A sharp decrease below 220 GHz is determined by the cutoff frequency of the feeding waveguide. This corresponds to the actual configuration of our experimental setup [29,30]. The obtained spectral dependence is more complicated compared with the unit cell model with Floquet ports, and corresponds more closely to the experimental results.…”

Section: Numerical Modeling and Simulation Algorithmsupporting

confidence: 73%

Arrays of Sub-Terahertz Cryogenic Metamaterial

et al. 2021

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Integrated quasi-optical cryogenic terahertz receivers contain arrays of detectors, quasi-optical filters, interferometers, and other metamaterials. Matrices of quasi-optical band-pass, low-pass, and high-pass filters, Fabry–Perot grid interferometers, and arrays of half-wave and electrically small antennas with superconductor-insulator-normal metal-insulator-superconductor (SINIS) sub-terahertz wavelength range detectors were fabricated and experimentally studied on the same computational, technological, and experimental platform. For the design of the filters, we used the periodic frequency-selective surfaces (FSS) approach, contrary to detector arrays that can be presented in a model of distributed absorbers. The structures were fabricated using direct electron beam lithography, thermal shadow evaporation, lift-off, alternatively magnetron sputtering, and chemical and plasma etching. The numerical simulation methods of such structures are sufficiently different: for the reactive matrices with low losses, the approximation of an infinite structure with periodic boundary conditions is applicable, and for the arrays of detectors with dissipative elements of absorbers, a complete analysis of the finite structure with hundreds of interacting ports is applicable. The difference is determined by the presence of dissipation in the detector arrays, the phase of the reflected or re-emitted signal turned out to be undefined and the Floquet periodic boundary conditions are correct only for a phased array antenna. The spectral characteristics of the created filters, interferometers, and antenna arrays were measured in the frequency range 50–600 GHz.

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Section: Numerical Modeling and Simulation Algorithmsupporting

confidence: 73%

Arrays of Sub-Terahertz Cryogenic Metamaterial

et al. 2021

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“…We studied the receiver in the form of a matrix of 5x5 ring planar antennas. The rings were cut in halves and SINIS structures were inserted into the gaps, where S is aluminum superconducting electrodes, I is an aluminum oxide tunnel barrier, N is a layer of non-superconducting aluminum with thin iron sublayer [12,13]. For direct current bias, the rings are connected in series.…”

Section: W II Experimentalmentioning

confidence: 99%

“…However, the Te estimate by formula (3) already at V/VΔ~0.1 noticeably decreases, although electron cooling, whose power is an order of magnitude less than VI and does not exceed 0.05 pW, is clearly insufficient for this case. Therefore, the single-electron current of the ideal NIS junction according to formula (3) at low voltages is only a small fraction of the total current, the contribution to which can due to the subgap Andreev current In+Is [13,16]. In the case of electrons scattering by magnetic ions, as established in [16,17], In is near zero and Is can be presented as…”

Section: W II Experimentalmentioning

confidence: 99%

Electron-Phonon Interaction in Aluminum SINIS

Lemzyakov¹,

Tarasov

Édelman³

2022

IEEE Trans. Appl. Supercond.

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A detailed analysis of power flow in superconductorinsulator-normal metal-insulator-superconductor (SINIS) structures with aluminum superconducting electrodes and normal metal absorber made of aluminum with suppressed superconductivity is carried out. From a comparison with the experimental results of measuring the current-voltage characteristics at temperatures from 0.087 K to 0.3 K, it was concluded that the power of the electron-phonon interaction is proportional to the difference of sixth powers of the electron and phonon temperatures. The previously applied relation with the difference of fifth powers leads to an almost twofold error in determining the power of the electron-phonon interaction and an estimate of the electron temperature that is underestimated by about 40 mK.

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“…Такая калибровка позволяет частично " исключить" множественные переотражения внутри криостата и нагрев подложки. Особенности такой методики калибровки подробно изложены в нашей работе [16]. Мы также измерили отклик образца на излучение черного тела при температурах 6 и 9 K (рис.…”

Section: экспериментальная установка и результаты измеренийunclassified

Синис-Болометр С Микроволновым Считыванием

Тарасов¹,

Махашабде²,

Гунбина³

et al. 2020

Физика Твердого Тела

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We have designed, fabricated, and experimentally studied a Superconductor-Insulator-Normal Metal-Insulator-Superconductor (SINIS) bolometer integrated in a twin-slot antenna with central frequency of 90 GHz and connected to a superconducting coplanar readout resonator. Such single pixel is intended for multichannel matrix of high-sensitive receiver for radioastronomy, in which readout of many channels is arranged via single coaxial cable instead of separate wires and separate amplifiers for each channel.

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Matching of Radiation with Array of Planar Antennas with SINIS Bolometers in an Integrating Cavity

Cited by 9 publications

References 10 publications

Arrays of Sub-Terahertz Cryogenic Metamaterial

Arrays of Sub-Terahertz Cryogenic Metamaterial

Electron-Phonon Interaction in Aluminum SINIS

Синис-Болометр С Микроволновым Считыванием

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