Journal ArticleDOI
Planar heterogeneous structures for coherent emission of radiation.
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TLDR
A planar coherent source is proposed that uses multilayers of negative permittivity (epsilon) and negative permeability materials and coherent emission can be achieved for both s and p polarization.Abstract:
The coupling of excited surface polaritons with thermal radiation through diffraction by gratings results in coherent thermal emission in a certain frequency range toward well-defined directions for p polarization. A planar coherent source is proposed that uses multilayers of negative permittivity (epsilon) and negative permeability (mu) materials. Owing to the excitation of surface polaritons at the interface between the negative-epsilon and negative-mu layers, coherent emission can be achieved for both s and p polarization. Moreover, one can control the emission frequency and direction by adjusting the layer thicknesses.read more
Citations
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Journal ArticleDOI
Coherent thermal emission by excitation of magnetic polaritons between periodic strips and a metallic film.
TL;DR: The present paper theoretically demonstrates coherent thermal emission in the infrared region by exciting magnetic polaritons between metallic gratings and an opaque metallic film, separated by a dielectric spacer.
Journal ArticleDOI
Spectral tuning of near-field radiative heat flux between two thin silicon carbide films
TL;DR: In this article, an analytical expression for the near-field radiative heat flux between two layers of finite thicknesses in terms of film reflection and transmission coefficients is derived for the first time, showing the resonant modes of thermal emission, absorption and the cross-coupling of surface phonon-polaritons (SPhPs) between the layers.
Journal ArticleDOI
Coherent thermal emission from one-dimensional photonic crystals
TL;DR: In this paper, a coherent thermal source was constructed with a thin polar material coated on a one-dimensional photonic crystal, and the excitation of surface waves at the interface of the coated layer and the photonic lattice resulted in highly spectral and directional emission in the infrared for both the transverse electric wave and transverse magnetic wave.
Journal ArticleDOI
Design and fabrication of planar multilayer structures with coherent thermal emission characteristics
Bong Jae Lee,Zhuomin M. Zhang +1 more
TL;DR: In this article, the authors describe two alternative designs with fewer layers for the application as coherent emission sources in planar multilayer structures, which can be obtained by the excitation of surface waves between the photonic crystal and the reflector.
Journal ArticleDOI
Fundamentals and applications of near-field radiative energy transfer
Keunhan Park,Zhuomin M. Zhang +1 more
TL;DR: In this paper, the authors review the recent advances in near-field radiative energy transfer, particularly in its fundamentals and applications, covering from the essential physics to the most recent theoretical as well as experimental findings that will further promote the fundamental understanding.
References
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Journal ArticleDOI
Experimental Verification of a Negative Index of Refraction
TL;DR: These experiments directly confirm the predictions of Maxwell's equations that n is given by the negative square root ofɛ·μ for the frequencies where both the permittivity and the permeability are negative.
Journal ArticleDOI
Magnetism from conductors and enhanced nonlinear phenomena
TL;DR: In this paper, it was shown that microstructures built from nonmagnetic conducting sheets exhibit an effective magnetic permeability /spl mu/sub eff/, which can be tuned to values not accessible in naturally occurring materials.
Book
Surface Plasmons on Smooth and Rough Surfaces and on Gratings
TL;DR: In this article, surface plasmons on smooth surfaces were used for light scattering at rough surfaces without an ATR device, and surface plasmon on gratings for enhanced roughness.
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
Terahertz magnetic response from artificial materials.
Ta-Jen Yen,Ta-Jen Yen,Ta-Jen Yen,Willie J. Padilla,Willie J. Padilla,Willie J. Padilla,Nicholas X. Fang,Nicholas X. Fang,Nicholas X. Fang,D. C. Vier,D. C. Vier,D. C. Vier,David R. Smith,David R. Smith,David R. Smith,John B. Pendry,John B. Pendry,John B. Pendry,Dmitri Basov,Dmitri Basov,Dmitri Basov,Xiang Zhang,Xiang Zhang,Xiang Zhang +23 more
TL;DR: It is shown that magnetic response at terahertz frequencies can be achieved in a planar structure composed of nonmagnetic conductive resonant elements and suggested that artificial magnetic structures, or hybrid structures that combine natural and artificial magnetic materials, can play a key role in teraHertz devices.