Journal ArticleDOI
Low frequency plasmons in thin-wire structures
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TLDR
In this paper, a photonic structure consisting of an extended 3D network of thin wires is shown to behave like a low density plasma of very heavy charged particles with a plasma frequency in the GHz range.Abstract:
A photonic structure consisting of an extended 3D network of thin wires is shown to behave like a low density plasma of very heavy charged particles with a plasma frequency in the GHz range. We show that the analogy with metallic behaviour in the visible is rather complete, and the picture is confirmed by three independent investigations: analytic theory, computer simulation and experiments on a model structure. The fact that the wires are thin is crucial to the validity of the picture. This new composite dielectric, which has the property of negative below the plasma frequency, opens new possibilities for GHz devices.read more
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A selective frequency reconfigurable bandstop metamaterial filter for WLAN applications
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Structures Containing Left-Handed Metamaterials with Refractive Index Gradient: Exact Analytical Versus Numerical Treatment
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Journal ArticleDOI
Left-handedness without absorption in the four-level Y-type atomic medium
TL;DR: In this article, three external fields interacting with the four-level Y-type atomic system described by the density-matrix approach were investigated and left-handedness with zero absorption was achieved.
Proceedings ArticleDOI
Metamaterial Möbius Strips (MMS): Application in resonators for oscillators and synthesizers
Ajay K. Poddar,Ulrich L. Rohde +1 more
TL;DR: In this paper, the phase noise at 10 kHz offset is -120 dBc/Hz with more than 10 MHz tuning for compensating the frequency drift over operating temperature (-40 degree C to +85 degree C).
References
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Journal ArticleDOI
Extremely Low Frequency Plasmons in Metallic Mesostructures
TL;DR: A mechanism for depression of the plasma frequency into the far infrared or even GHz band is proposed: Periodic structures built of very thin wires dilute the average concentration of electrons and considerably enhance the effective electron mass through self-inductance.
Journal ArticleDOI
Plasma Losses by Fast Electrons in Thin Films
TL;DR: In this paper, the angle energy distribution of a fast electron losing energy to conduction electrons in a thick metallic foil has been derived assuming that the conduction electron constitute a Fermi-Dirac gas and that the fast electron undergoes only small fractional energy and momentum changes.
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A Collective Description of-Electron Interactions: III. Coulomb Interactions in a Degenerate Electron Gas
TL;DR: In this article, the behavior of the electrons in a dense electron gas is analyzed quantum-mechanically by a series of canonical transformations, and the results are related to the classical density fluctuation approach and Tomonaga's one-dimensional treatment of the degenerate Fermi gas.
Journal ArticleDOI
Photonic band structure: The face-centered-cubic case employing nonspherical atoms.
TL;DR: A practical, new, face-centered-cubic dielectric structure which simultaneously solves two of the outstanding problems in photonic band structure and lends itself readily to microfabrication on the scale of optical wavelengths.
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A Collective Description of Electron Interactions: II. Collective vs Individual Particle Aspects of the Interactions
TL;DR: In this article, the behavior of the electrons in a dense electron gas is analyzed in terms of their density fluctuations, which are then split into two components, one component associated with the organized oscillation of the system as a whole, the so-called "plasma" oscillation, and the other component representing the random thermal motion of the individual electrons.