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In this article, two wide band high-efficiency metasurface structures as a linear-cross polarizer in transmission mode based on asymmetric split-ring resonators (ASRR) are proposed and tested to indicate that this is not a purely…

Magnetic excitations in the spin-ladder material (C$_5$H$_{12}$N)$_2$CuBr$_4$ [BPCB] are probed by high-resolution multi-frequency electron spin resonance (ESR) spectroscopy. Our experiments provide a direct evidence for a biaxial…

Light is generally expected to travel through isotropic media independent of its direction. This makes it challenging to develop non-reciprocal optical elements like optical diodes or circulators, which currently rely on magneto-optical…

Microwave sensors are very promising for sensing the blood glucose levels non-invasively for their non-ionizing nature, miniaturized sizing, and low health risks for diabetics. All these features offer the possibility for realizing a…

In this paper we consider the resonant frequency of split-ring resonators and double-bar resonators used to create artificial magnetic response at terahertz and optical frequencies. It is known that geometrical scaling of the resonant…

Materials Science · Physics 2009-11-11 Sergei Tretyakov

In contrast to linearly polarized RF coil arrays, quadrature transceiver coil arrays are capable of improving signal-to-noise ratio (SNR), spatial resolution and parallel imaging performance. Owing to a reduced excitation power, low…

Medical Physics · Physics 2023-06-28 Komlan Payne , Aditya Ashok Bhosale , Xiaoliang Zhang

CaSb$_2$ is a bulk superconductor and a topological semimetal, making it a great platform for realizing topological superconductivity. In this work, we investigate the superconducting upper and lower critical field anisotropy using magnetic…

Superconductivity · Physics 2024-05-31 M. Oudah , Y. Cai , M. V. De Toro Sanchez , J. Bannies , M. C. Aronson , K. M. Kojima , D. A. Bonn

Magnetic field dependences of critical current, resistance, and rectified voltage of asymmetric (half circles of different widths) and symmetrical (half circles of equal widths) aluminum rings were measured in the temperature region close…

Superconductivity · Physics 2010-11-30 V. L. Gurtovoi , S. V. Dubonos , S. V. Karpii , A. V. Nikulov , V. A. Tulin

Coupled superconducting transmission line resonators have applications in quantum information processing and fundamental quantum mechanics. A particular example is the realization of fast beam splitters, which however is hampered by…

Mesoscale and Nanoscale Physics · Physics 2016-08-11 M. Haeberlein , D. Zueco , P. Assum , T. Weißl , E. Hoffmann , B. Peropadre , J. J. García-Ripoll , E. Solano , F. Deppe , A. Marx , R. Gross

We report the experimental demonstration of tunable asymmetric acoustic metasurfaces with extreme contrast, made by two decorated membrane resonators (DMRs) coupled via a sealed air column. The front side of the metasurface is impedance…

Applied Physics · Physics 2017-05-29 Songwen Xiao , Suet Tao Tang , Z. Yang

We present a solution to the problem of broadband decoupling of a coupled homonuclear two-spin system. We describe a pulse sequence that creates an effective field perpendicular to the coupling interaction with a magnitude propotional to…

Quantum Physics · Physics 2017-04-19 Van Do , Navin Khaneja

The influence of Rashba spin-orbit coupling on zero conductance resonances appearing in one dimensional ring asymmetrically coupled to two leads is investigated. For this purpose, the transmission function of the corresponding one-electron…

Mesoscale and Nanoscale Physics · Physics 2012-06-14 Urs Aeberhard , Katsunori Wakabayashi , Manfred Sigrist

We examine the transport of magnetic energy in a simplified model of a magnetic metamaterial, consisting of a one-dimensional array of split-ring resonators, in the presence of correlated disorder in the resonant frequencies. The…

Disordered Systems and Neural Networks · Physics 2021-02-03 Mario I. Molina

We investigate nonlinear dispersive mode coupling between the flexural in- and out-of-plane modes of two doubly clamped, nanomechanical silicon nitride string resonators. As the amplitude of one mode transitions from the linear response…

Mesoscale and Nanoscale Physics · Physics 2020-02-19 K. Gajo , G. Rastelli , E. M. Weig

We demonstrate nonlinear metamaterial split ring resonators (SRRs) on GaAs at terahertz frequencies. For SRRs on doped GaAs films, incident terahertz radiation with peak fields of ~20 - 160 kV/cm drives intervalley scattering. This reduces…

We demonstrate that arrays of split ring resonators (SRR) can have negative refractive index at optical frequencies (~1.4 eV). Our calculations reveal that the electric fields of radiation interact strongly with even symmetric SRR at…

In order to study the pairing symmetry in non-centrosymmetric superconductors, we solve the linearized Eliashberg's equation on the two-dimensional extended Hubbard model in the presence of the Rashba-type spin-orbit coupling (RSOC) within…

Superconductivity · Physics 2013-02-13 K. Shigeta , S. Onari , Y. Tanaka

Asteroseismic large frequency separations possess great diagnostic value. However, their expressions as scaling relations are predicated on homology arguments which may not hold in general, resulting in mass- and temperature-dependent…

Solar and Stellar Astrophysics · Physics 2019-01-16 Joel Ong , Sarbani Basu

Cosmic Birefringence (CB) is a phenomenon in which the polarization of the Cosmic Microwave Background (CMB) radiation is rotated as it travels through space due to the coupling between photons and an axion-like field. We look for a…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-18 Alessandro Greco , Nicola Bartolo , Alessandro Gruppuso

In this letter, the properties of split-ring resonators (SRRs) loaded with high-Q capacitors and nonlinear varactors are theoretically analyzed and experimentally measured. We demonstrate that the resonance frequency $f_m$ of the nonlinear…

Materials Science · Physics 2015-05-13 Bingnan Wang , Jiangfeng Zhou , Thomas Koschny , Costas M. Soukoulis