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While the tunneling conductance between two spherical-like conducting particles depends on the relative inter-particle distance, the wave function overlap between states of two rod-like particles, and so the tunneling conductance, depends…

Disordered Systems and Neural Networks · Physics 2014-10-01 Biagio Nigro , Claudio Grimaldi

This paper presents an electromagnetic investigation of the crosstalk between two bent microstrip lines (MLs) separated by a perforated planar shield. As an extension of our previous study, the effects of various discontinuities in either…

Applied Physics · Physics 2025-11-05 Mohammad Eskandari , Mojtaba Joodaki

One dimensional rectangular metallic gratings enable enhanced transmission of light for specific resonance frequencies. Two kinds of modes participating to enhanced transmission have already been demonstrated : (i) waveguide modes and (ii)…

Optics · Physics 2009-11-10 P. Quemerais , A. Barbara , J. Leperchec , T. Lopez-Rios

We describe the design and characterization of superconducting coplanar waveguide cavities tailored to facilitate strong coupling between superconducting quantum circuits and single trapped Rydberg atoms. For initial superconductor-atom…

Superconductivity · Physics 2024-06-12 M. A. Beck , J. A. Isaacs , D. Booth , J. D. Pritchard , M. Saffman , R. McDermott

The resonant tunneling model is the simplest model for describing electronic transport through nanoscale objects like individual molecules. A complete understanding includes not only charge transport but also thermal transport and their…

Mesoscale and Nanoscale Physics · Physics 2021-01-25 Matthias A. Popp , André Erpenbeck , Heiko B. Weber

Manipulation of wave propagation through open resonant systems has attracted tremendous interest. When accessible to the open system, the system under study is prone to tempering to out of equilibrium, and a lack of reciprocity is the rule…

Applied Physics · Physics 2024-04-18 Youcai Han , Changhao Meng , Zejin Rao , Jie Qian , Yiming Lv , Liping Zhu , CanMing Hu , Zhenghua An

In this paper, we theoretically and numerically demonstrate a two-dimensional Metal-Dielectric-Metal (MDM) waveguide based on finite-difference time-domain simulation of the propagation characteristics of surface plasmon polaritons (SPPs).…

Optics · Physics 2009-02-10 Xian-Shi Lin , Xu-Guang Huang

We report on the experimental realization of a photonic system that simulates the one-dimensional two-particle Hubbard model. This analogy is realized by means of two-dimensional arrays of coupled optical waveguides, fabricated using…

We have studied the influence of the transverse size of a magnetic tunnel nanojunction on the magnitude of the magnetoresistance. During modeling, the size of the right contact was fixed, while the size of the left one gradually changed…

Mesoscale and Nanoscale Physics · Physics 2021-06-22 V. L. Katkov , V. A. Osipov

Surface plasmon resonances of metallic nanostructures offer great opportunities to guide and manipulate light on the nanoscale. In the design of novel plasmonic devices, a central topic is to clarify the intricate relationship between the…

Optics · Physics 2019-09-11 Sanghyeon Yu , Habib Ammari

Recent investigations have highlighted the failure of a sum of $R^{-6}$ terms to represent the dispersion interaction in parallel metallic, anisotropic, linear or planar nanostructures [J. F. Dobson, A. White, and A. Rubio, Phys. Rev. Lett.…

Soft Condensed Matter · Physics 2013-05-29 Angela White , John F. Dobson

The evidence of strong coupling between plasmons and molecular excitons for plasmonic nanoparticle (NP) dimers exhibiting ultra-sensitive surface enhanced resonant Raman scattering is the observation of anti-crossing in the coupled…

Optics · Physics 2020-02-06 Tamitake Itoh , Yuko S. Yamamoto , Takayuki Okamoto

We study numerically the effect of mode mixing and direct dipole-dipole interactions between gain molecules on spasing in a small composite nanoparticles with a metallic core and a dye-doped dielectric shell. By combining Maxwell-Bloch…

Mesoscale and Nanoscale Physics · Physics 2019-04-15 Vitaliy N. Pustovit , Augustine M. Urbas , Arkadi Chipouline , Tigran V. Shahbazyan

We theoretically study transmission in nanowaveguide coupled to high-quality plasmon resonances for which the metal loss is overcompensated by gain. The on-resonance transmission can vary widely from lower than --20dB to higher than 20dB…

Optics · Physics 2015-07-29 Song-Jin Im , Gum-Song Ho

Our theoretical examination of second and third harmonic generation from metal-based nanostructures predicts that nonlocal and quantum tunneling phenomena can significantly exceed expectations based solely on local, classical…

In this paper we suggest and theoretically study a tapered plasmonic nanostructure which connects the incident wave beam with a subwavelength spatial region where the field is locally enhanced in a broad frequency range or for different…

Optics · Physics 2011-04-05 O. Luukkonen , J. Pniewski , C. Simovski

The dispersion curves of (elastic) waveguides frequently exhibit crossings and osculations (also known as veering, repulsion, or avoided crossing). Osculations are regions in the dispersion diagram where curves approach each other…

Classical Physics · Physics 2023-10-12 Hauke Gravenkamp , Bor Plestenjak , Daniel A. Kiefer

Optical plasmon-polariton modes confined in both transverse dimensions to significantly less than a wavelength are exhibited in open waveguides structured as sharp metal wedges. The analysis reveals two distinctive modes corresponding to a…

Optics · Physics 2009-11-11 Eyal Feigenbaum , Meir Orenstein

Theoretical research on electronic properties in mesoscopic condensed matter systems has focused primarily on the electron charge freedom degrees, while its corresponding spin freedom degrees have not yet received the same attention.…

Mesoscale and Nanoscale Physics · Physics 2016-08-14 H. Paredes Gutíerrez , S. T. Pérez-Merchancano , G. E. Marques

We report on a combined theoretical and experimental study of the optical coupling between a microdisk resonator and a waveguide laying on different planes. While the lateral coupling between a planar resonator and a waveguide is…

Optics · Physics 2016-11-25 M. Ghulinyan , R. Guider , I. Carusotto , A. Pitanti , G. Pucker , L. Pavesi