Journal ArticleDOI
The propagation of electromagnetic energy through an absorbing dielectric
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TLDR
In this paper, the theory of energy propagation through an absorbing classical dielectric having a single resonant frequency is presented, and simple expressions are derived for the velocity of energy transport associated with an electromagnetic wave, and for the finite energy relaxation time caused by the damping mechanism.Abstract:
The energy associated with an electromagnetic wave passing through a dielectric resides partly in the electromagnetic field and partly in the accompanying excitation of the dielectric. The theory of energy propagation through an absorbing classical dielectric having a single resonant frequency is presented in this paper. Simple expressions are derived for the velocity of energy transport associated with an electromagnetic wave, and for the finite energy relaxation time caused by the damping mechanism. The variations of these quantities, and of the absorption coefficient, with the relative values of the damping constant and dipole moment of the classical oscillator are investigated. This information is used to throw light on the basic mechanism of irreversible dissipation of energy by an electromagnetic wave in a dielectric. The similarities between the calculations of the dielectric constant by classical dispersion theory and by quantum mechanics are discussed.read more
Citations
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Journal ArticleDOI
Electromagnetic energy density in a single-resonance chiral metamaterial.
TL;DR: The electromagnetic energy density in a chiral metamaterial consisting of uncoupled single-resonance helical resonators is derived, and the energy density is shown to be positively definite.
Journal ArticleDOI
Green's Dyadic, Spectral Function, Local Density of States, and Fluctuation Dissipation Theorem
TL;DR: In this paper, the spectral functions are studied in conjunction with the dyadic Green's functions for various media, including homogeneous, inhomogeneous, periodic, lossless, lossy, and anisotropic, guided by the BlochFloquet theorem.
Information transfer and Landauers principle
TL;DR: In this paper, an analysis of information transfer based on Landauers principle (i.e., erasure of information is associated with an increase in entropy), as well as considerations of analyticity and causality, is presented.
Journal ArticleDOI
Performance analysis of solar thermophotovoltaic system with selective absorber/emitter
TL;DR: In this paper, a systematic thermal analysis of the solar thermophotovoltaic (STPV) system was conducted to optimize the selective absorber and emitter, and the authors showed that increasing ratio of length to gap and length to width can further increase the STPV efficiency by reducing the radiation loss.
Journal ArticleDOI
The velocity of energy through a dissipative medium
TL;DR: In this article, the centrovelocity is compared to the energy and group velocities, defined for a monochromatic plane wave, related to the centroid of the pulse in the time and spatial domains.
References
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Book
Dynamical Theory of Crystal Lattices
Max Born,Kʿun Huang +1 more
TL;DR: Born and Huang's classic work on the dynamics of crystal lattices was published over thirty years ago, and it remains the definitive treatment of the subject as mentioned in this paper. But it is not the most complete work on crystal lattice dynamics.
Journal ArticleDOI
Statistical-Mechanical Theory of Irreversible Processes : I. General Theory and Simple Applications to Magnetic and Conduction Problems
TL;DR: In this paper, a general type of fluctuation-dissipation theorem is discussed to show that the physical quantities such as complex susceptibility of magnetic or electric polarization and complex conductivity for electric conduction are rigorously expressed in terms of timefluctuation of dynamical variables associated with such irreversible processes.
Journal ArticleDOI
Self-Induced Transparency by Pulsed Coherent Light
S. L. McCall,Erwin L. Hahn +1 more