223 citations · 445 across the 13 of their papers we have counts for
13 papers
A Reflective Metasurface for High-Efficiency Terahertz Cross-Polarization Conversion
Muhammad Fayyaz Kashif, Shobit Agarwal, Antonio Iodice +5
We demonstrate a reflective terahertz (THz) polarization conversion metasurface based on a double-ring aluminum resonator on a quartz substrate. Full-wave simulations are used to o…
Giant Effective Permeability in Drude Thin Films Probed by THz Time-Domain Spectroscopy
Gian Paolo Papari, Zahra Mazaheri, Antonio Vettoliere +7
The electromagnetic response of metallic films is commonly analyzed in terahertz spectroscopy by assuming unit relative magnetic permeability. In this work we show that this assump…
Accurate THz Measurements of Permittivity and Permeability of BiFeO Thin Films
Gian Paolo Papari, Zahra Mazaheri, Francesca Lo Presti +2
The electrodynamic properties of BiFeO films in the THz region are investigated via time domain spectroscopy. Combining the use of transmission () and reflection ($\…
Quantum Interference by Vortex Supercurrents
G. P. Papari, V. M. Fomin
We analyze the origin of the parabolic background of magnetoresistance oscillations measured in finite-width superconducting mesoscopic rings with input and output stubs and in pat…
Sensing enhancement of a Fabry-Perot THz cavity using switchable VO2 mirrors
Gian Paolo Papari, Anna Lucia Pellegrino, Graziella Malandrino +1
We experimentally investigate the sensing properties of an open cavity operating in the THz regime and realized by employing as mirrors two thin vanadium dioxide (VO2) films grown…
Quantum interference in finite-size mesoscopic rings
G. P. Papari, V. M. Fomin
The Ginzburg-Landau theory is used to model the order parameter of a finite-size mesoscopic ring to investigate the effects of the onset of screening currents on the transport of i…
Effective EMI shielding behaviour of thin graphene/PMMA nanolaminates in the THz range
Christos Pavlou, Maria Giovanna Pastore Carbone, Anastasios C Manikas +5
The use of graphene in a form of discontinuous flakes in polymer composites limits the full exploitation of the unique properties of graphene, thus requiring high filler loadings f…
Thermoplastic polyurethane-graphene nanoplatelets microcellular foams for electromagnetic interference shielding
Maria Giovanna Pastore Carbone, Maxime Beaugendre, Can Koral +6
The incorporation of graphene-related materials as nanofiller can produce multifunctional foams with enhanced specific properties and density reduction. Herein we report on the pre…
Coherent transport in extremely underdoped Nd1.2Ba1.8Cu3Oz nanostructures
Franco Carillo, Gabriella Maria De Luca, Domenico Montemurro +5
Proximity-effect and resistance magneto-fluctuations measurements in submicron Nd1.2Ba1.8Cu3Oz (NBCO) nano-loops are reported to investigate coherent charge transport in the non-su…
High critical-current density and scaling of phase-slip processes in YBaCuO nanowires
G. Papari, F. Carillo, D. Stornaiuolo +3
YBaCuO nanowires were reproducibly fabricated down to widths of 50 nm. A Au/Ti cap layer on YBCO yielded high electrical performance up to temperatures above 80 K in single nanowir…
Quantum crossover in moderately damped epitaxial NbN/MgO/NbN junctions with low critical current density
Luigi Longobardi, Davide Massarotti, Giacomo Rotoli +6
High quality epitaxial NbN/MgO/NbN Josephson junctions have been realized with MgO barriers up to a thickness of d=1 nm. The junction properties coherently scale with the size of b…
Thermal hopping and retrapping of a Brownian particle in the tilted periodic potential of a NbN/MgO/NbN Josephson junction
Luigi Longobardi, Davide Massarotti, Giacomo Rotoli +6
We report on the occurrence of multiple hopping and retrapping of a Brownian particle in a tilted washboard potential. The escape dynamic has been studied experimentally by measuri…
Little-Parks effect in single YBaCuO sub-micron rings
Franco Carillo, Gianpaolo Papari, Daniela Stornaiuolo +5
The properties of single submicron high-temperature superconductor (HTS) rings are investigated. The Little-Parks effect is observed and is accompanied by an anomalous behavior of…