Nonlinear Josephson left-handed transmission lines

Salehi, H.; Mansour, R.R.; Majedi, A. Hamed

doi:10.1049/iet-map:20050335

Cited by 10 publications

(13 citation statements)

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“…The tuning of Josephson inductance in a transmission-line metamaterial geometry was considered theoretically by Salehi, Majedi, and Mansour [52,53].…”

Section: B Superconducting Meta-atoms Employing the Josephson Effectmentioning

confidence: 99%

Realization and Modeling of Metamaterials Made of rf Superconducting Quantum-Interference Devices

et al. 2013

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Funding for Open Access provided by the UMD Libraries Open Access Publishing Fund.We have prepared meta-atoms based on radio-frequency superconducting quantum-interference devices (rf SQUIDs) and examined their tunability with dc magnetic field, rf current, and temperature. rf SQUIDs are superconducting split-ring resonators in which the usual capacitance is supplemented with a Josephson junction, which introduces strong nonlinearity in the rf properties. We find excellent agreement between the data and a model that regards the Josephson junction as the resistively and capacitively shunted junction. A magnetic field tunability of 80 THz=G at 12 GHz is observed, a total tunability of 56% is achieved, and a unique electromagnetically induced transparency feature at intermediate excitation powers is demonstrated for the first time. An rf SQUID metamaterial is shown to have qualitatively the same behavior as a single rf SQUID with regard to dc flux and temperature tuning.This work is supported by the NSF-GOALI Program through Grant No. ECCS-1158644 and the Center for Nanophysics and Advanced Materials (CNAM). Funding for Open Access was provided by the UMD Libraries Open Access Publishing Fund

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“…The tuning of Josephson inductance in a transmission-line metamaterial geometry was considered theoretically by Salehi, Majedi, and Mansour [52,53].…”

Section: B Superconducting Meta-atoms Employing the Josephson Effectmentioning

confidence: 99%

Realization and Modeling of Metamaterials Made of rf Superconducting Quantum-Interference Devices

et al. 2013

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show abstract

“…In this paper, we incorporate an array of Josephson junctions (JJs) which operate as a nonlinear left-handed transmission line. The nonlinearity of Josephson left-handed transmission line (JLHTL) is due to the highly nonlinear nature of the JJs that provide the shunt inductances [1].…”

Section: Introductionmentioning

confidence: 99%

“…Thus most of the superconducting electronics are based on the Josephson junctions. There are also practical motivations for the use of the JJs, namely the ac junction Resistively and Capacitively Junction Shunted (RCJS) model which is a simple circuit that uses finite elements to describe the barrier capacitance and the normal conductivity of Electrochemistry [1]. In the context of RF and magnetic coupling, the JJs is extremely attractive as a source of high radiation frequency (in the order of Terahertz), and they are also highly sensitive to electromagnetic fields and thus appear as amplifiers and sources of electromagnetic radiation in Sub-millimeter speed.…”

Section: Introductionmentioning

confidence: 99%

“…The emission of linear plasma waves by a fluxon moving through a periodically installed microwell lattice has been proposed as a basis for a Josephson microwave generation [3]. Many studies have been devoted to the possibility of soliton formation [4] using the description of the effective medium, but there are only a few works on the nonlinear left-handed transmission lines of JJ (LH) [5]. The propagation of the soliton wave in a nonlinear left-handed transmission line is an important phenomenon.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, using the generalized Ricati methods [10], we show that the highly nonlinear nature of the JJ [11,12,13] is followed. As mentioned in [1], the loss effect in the JNLHTL can be safely ignored. The nonlinear current voltage waves that propagate in the JLHTL are governed by the Kirchhoffs laws …”

Section: Introductionmentioning

confidence: 99%

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