Toward terahertz heterodyne detection with superconducting Josephson junctions

Malnou, M.; Luo, A.; Wolf, Thomas; Wang, Y.; Feuillet-Palma, C.; Ulysse, C.; Faini, G.; Febvre, Pascal; Sirena, M.; Lesueur, J.; Bergeal, N.

doi:10.1063/1.4769441

Cited by 17 publications

(28 citation statements)

References 23 publications

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“…Superconducting devices such as THz Josephson mixers were recently realized by this method [21,22]. Large 2D arrays of JJ [23] and SQIFs [24,25] have been developed successfully.…”

Section: High-tc Superconducting Quantum Interference Filters (Sqifs)mentioning

confidence: 99%

High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation

Ouanani

Kermorvant

Ulysse

et al. 2016

Supercond. Sci. Technol.

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Abstract.Superconducting Quantum Interference Filters (SQIFs) are arrays of superconducting loops of different sizes including Josephson Junctions (JJ). For a random distribution of sizes, they present a non-periodic response to an applied magnetic field, with a large transfer function and a magnetic field sensitivity potentially improved with respect to that of a single SQUID. Such properties make SQIFs interesting devices arXiv:1603.07592v2 [cond-mat.supr-con] 1 Jun 2016High-Tc Superconducting Quantum Interference Filters (SQIFs) made by ion irradiation2 to detect the magnetic component of electromagnetic waves at microwave frequencies.We have used the highly scalable technique of ion irradiation to make SQUIDs and SQIFs based on commercial YBa 2 Cu 3 O 7 films, and studied their properties. Both display optimum performances as a function of temperature and bias current, that can be understood in the frame of numerical simulations that we developed. The role of asymmetries and dispersion in JJ characteristics (routinely found in High Tc Superconductors technologies) is also studied. We have found that both do not impede the existence of a SQIF effect but play a role on the emergence of the optimal point. We finally present results on SQIF made with 2000 SQUID in series, showing a transfer function dV /dB ∼ 1000V /T .

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“…Superconducting devices such as THz Josephson mixers were recently realized by this method [21,22]. Large 2D arrays of JJ [23] and SQIFs [24,25] have been developed successfully.…”

Section: High-tc Superconducting Quantum Interference Filters (Sqifs)mentioning

confidence: 99%

High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation

Ouanani

Kermorvant

Ulysse

et al. 2016

Supercond. Sci. Technol.

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“…It is therefore particularly suitable in creating THz devices that include Josephson junctions embedded in their circuitry. 23 In this device, the self-complementary spiral antenna is defined by its internal and external radius q 1 ðhÞ ¼ q 0 e 0:2h and q 2 ðhÞ ¼ q 0 e 0:2ðhÀp=2Þ with q 0 ¼ 8 lm. It has an extended bandwidth [40 GHz-5 THz] and a quasi-static impedance of…”

Section: Fabrication Of the Josephson Mixermentioning

confidence: 99%

“…3(c), fc displays a dome as a function of the temperature with a maximum value f opt c of 85 GHz at 55 K. Note that f c is not a cut-off frequency and that mixing can be performed up to frequencies corresponding to several times the value of f c at the cost of a reduced conversion efficiency. 23 However, for optimal operation, it is desirable to have f c larger than the frequencies of the incoming signals f LO and f s as the resulting ac current would then interact mainly with the Josephson non-linear inductive element.…”

Section: DC and Ac Response Of The Junctionmentioning

confidence: 99%

High-Tc superconducting Josephson mixers for terahertz heterodyne detection

Malnou

Feuillet-Palma

Ulysse

et al. 2014

Journal of Applied Physics

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We report on an experimental and theoretical study of the high-frequency mixing properties of ion-irradiated YBa 2 Cu 3 O 7 Josephson junctions embedded in THz antennas. We investigated the influence of the local oscillator power and frequency on the device performances. The experimental data are compared with theoretical predictions of the general three-port model for mixers in which the junction is described by the resistively shunted junction model. A good agreement is obtained for the conversion efficiency in different frequency ranges, spanning above and below the characteristic frequencies f c of the junctions. V C 2014 AIP Publishing LLC.

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“…An alternative technology to make HTS SQUIDs arrays with a large number of JJ is the irradiation technology [26,27], developed both for DC and high frequency operation [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Static and radio frequency magnetic response of high T _c superconducting quantum interference filters made by ion irradiation

Pawlowski¹,

Kermorvant²,

Crété³

et al. 2018

Supercond. Sci. Technol.

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Superconducting Quantum Interference Filters (SQIF) are promising devices for Radio-Frequency (RF) detection combining low noise, high sensitivity, large dynamic range and wide-band capabilities. Impressive progress have been made recently in the field, with SQIF based antennas and amplifiers showing interesting properties in the GHz range using the well-established Nb/AlOx technology. The possibility to extend these results to High Temperature Superconductors (HTS) is still open, and different techniques to fabricate HTS SQIFs are competing to make RF devices.We report on the DC and RF response of a High Temperature SQIF fabricated by the ion irradiation technique. It is made of 1000 Superconducting QUantum Interference Devices (SQUIDs) in series, with loop areas randomly distributed between 6 µm 2 and 60 µm 2 . The DC transfer factor is ∼ 450 V T −1 at optimal bias and temperature, and the maximum voltage swing ∼ 2.5 mV . We show that such a SQIF detects RF signals up to 150 MHz. It presents linear characteristics for RF power spanning more than five decades, and non-linearities develop beyond P RF = −35 dBm in our set-up configuration. Second-harmonic generation has been shown to be minimum at the functioning point in the whole range of frequencies. A model has been developed which captures the essential features of the SQIF RF response.

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Toward terahertz heterodyne detection with superconducting Josephson junctions

Cited by 17 publications

References 23 publications

High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation

High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation

High-Tc superconducting Josephson mixers for terahertz heterodyne detection

Static and radio frequency magnetic response of high T _c superconducting quantum interference filters made by ion irradiation

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Toward terahertz heterodyne detection with superconducting Josephson junctions

Cited by 17 publications

References 23 publications

High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation

High-Tc superconducting quantum interference filters (SQIFs) made by ion irradiation

High-Tc superconducting Josephson mixers for terahertz heterodyne detection

Static and radio frequency magnetic response of high T c superconducting quantum interference filters made by ion irradiation

Contact Info

Product

Resources

About

Static and radio frequency magnetic response of high T _c superconducting quantum interference filters made by ion irradiation