Use of a spoof plasmon to optimize the coupling of infrared radiation to Josephson-junction fluxon oscillations
A. Tagliacozzo, S. De Nicola, D. Montemurro, G. Campagnano, C. Petrarca, C. Forestiere, G. Rubinacci, F. Tafuri, G. P. Pepe
DOI 10.1103/PhysRevB.101.014506 · Physical Review B
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Abstract
We show that infrared radiation impinging onto a one-dimensional array of grooves drilled in the superconductor electrode of a long overlap junction can improve matching between fluxon oscillations at THz frequencies and a spoof plasmon of comparable wavelength. This example proves that metamaterials can be very helpful in integrating superconductive and subwavelength optical circuits with optimized matching, bridging the gap between infrared and microwave radiation.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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