Resonant scattering from a two-dimensional honeycomb PT dipole structure (Conference Presentation)

Locally resonant metamaterials (LRMs) controlling low-frequency waves due to resonant scattering are usually characterized by narrow band gaps (BGs) and a poor wave filtering performance. To remedy this shortcoming, multiresonant metamaterial structures with closely located BGs have been proposed and widely studied. However, the analysis is generally limited to two-dimensional (2D) structures neglecting the finite height of any real resonator. The aim of this paper is the comparison of the wave dispersion for two- and three-dimensional (3D) metamaterial models and evaluation of the applicability ranges of 2D results. Numerical study reveals that dual-resonant structures with cylindrical inclusions possess only a single (compared to two in the 2D case) BG for certain height-to-width ratios. In contrast, the wave dispersion in metamaterials with multiple spherical resonators can be accurately evaluated using a 2D approximation, enabling a significant simplification of resource-consuming 3D models.

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Irradiation-induced Kondo resonance in two-dimensional electron systems

Journal of Physics Conference Series ◽

10.1088/1742-6596/2015/1/012056 ◽

2021 ◽

Vol 2015 (1) ◽

pp. 012056

Author(s):

I. V. Iorsh ◽

O. V. Kibis

Keyword(s):

Quantum Wells ◽

State Of The Art ◽

Magnetic Moments ◽

Resonant Scattering ◽

Electron System ◽

Kondo Temperature ◽

Two Dimensional ◽

Electron Systems ◽

Kondo Resonance ◽

Scattering States

Abstract We demonstrated theoretically that formation of the resonant scattering states in the two-dimensional (2D) electron system irradiated by a circularly polarized electromagnetic field leads to the emergence of localized magnetic moments. As a consequence, the corresponding Kondo resonances appear. For GaAs-based quantum wells and microwave fields, we estimate the Kondo temperature around 2.5 K, which can be detected in state-of-the-art measurements.

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Resonant scattering and mode coupling in two-dimensional textured planar waveguides

Journal of the Optical Society of America A ◽

10.1364/josaa.18.001160 ◽

2001 ◽

Vol 18 (5) ◽

pp. 1160 ◽

Cited By ~ 28

Author(s):

Allan R. Cowan ◽

Paul Paddon ◽

Vighen Pacradouni ◽

Jeff F. Young

Keyword(s):

Mode Coupling ◽

Resonant Scattering ◽

Planar Waveguides ◽

Two Dimensional

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Spectrophotometric measurements of objective-prism spectra

Symposium - International Astronomical Union ◽

10.1017/s007418090005333x ◽

1966 ◽

Vol 24 ◽

pp. 118-119

Author(s):

Th. Schmidt-Kaler

Keyword(s):

Progress Report ◽

Two Dimensional ◽

Objective Prism ◽

Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

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