Journal ArticleDOI
Scattering and absorption characteristics of lossy dielectric, chiral, nonspherical objects
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TLDR
It appears that chiral spheres are the most effective objects in retarding the progress of an incident plane wave regardless of its polarization.Abstract:
A procedure based on the T-matrix method is devised to study the electromagnetic response of chiral, (lossy) dielectric, nonspherical objects exposed to an arbitrary incident field. Reductions in the method for axisymmetric objects are discussed. Using the technique thus developed, the plane wave scattering and absorption characteristics of lossy dielectric, axisymmetric scatterers (spheres as well as prolate and oblate spheroids), with and without chiral properties, are examined at frequencies above 50 GHz. The relative permittivity of the objects is assumed to be frequency dependent, whereas the chiral parameters are set to be constant in the numerical study. From the computed results, it appears that chiral spheres are the most effective objects in retarding the progress of an incident plane wave regardless of its polarization.read more
Citations
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T-Matrix Computations of Light Scattering by Nonspherical Particles: A Review
TL;DR: In this paper, the current status of Waterman's T-matrix approach is reviewed, which is one of the most powerful and widely used tools for accurately computing light scattering by nonspherical particles, both single and composite, based on directly solving Maxwell's equations.
Journal ArticleDOI
Numerical methods in electromagnetic scattering theory
TL;DR: An overview is given over some of the most widely used numerical techniques for solving the electromagnetic scattering problem that start from rigorous electromagnetic theory.
Journal ArticleDOI
A multiple sphere T-matrix Fortran code for use on parallel computer clusters
TL;DR: The code is written with message passing interface instructions to enable the use on distributed memory compute clusters, and for such platforms the code can make feasible the calculation of absorption, scattering, and general EM characteristics of systems containing several thousand spheres.
Journal ArticleDOI
Electromagnetic wave propagation through a dielectric–chiral interface and through a chiral slab
TL;DR: In this paper, the reflection from and transmission through a semi-infinite chiral medium is analyzed by obtaining the Fresnel equations in terms of parallel-and perpendicular-polarized modes, and a comparison is made with results reported previously.
Journal ArticleDOI
The theory of chirowaveguides
Philippe Pelet,Nader Engheta +1 more
TL;DR: In this paper, the theory of chirowaveguides is discussed and their salient features are analyzed, and the corresponding dispersion relations, cutoff frequencies, and propagating and evanescent modes are obtained.
References
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Journal ArticleDOI
Methods of Theoretical Physics. By P.M. Morse and H. Feschbach. 2vols., Pp.xxii, 1978. 120s. each vol. 1953.(McGraw-Hill)
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Scattering of electromagnetic waves by arbitrarily shaped dielectric bodies
Peter Barber,C. Yeh +1 more
TL;DR: The differential scattering characteristics of closed three-dimensional dielectric objects are theoretically investigated and the method developed here appears to be most applicable to objects whose physical size is on the order of the wavelength of the incident radiation.
Journal ArticleDOI
On electromagnetic waves in chiral media
TL;DR: In this paper, the propagation of electromagnetic waves through chiral media is analyzed, i.e., through composite media consisting of macroscopic chiral objects randomly embedded in a dielectric, and the peculiar effects that such media have on the polarization properties of the waves are placed in evidence.
Journal ArticleDOI
Light scattering by an optically active sphere
TL;DR: In this paper, the scattering of light by a sphere with intrinsic optical activity was calculated exactly from electromagnetic theory using the constitutive equations appropriate for an optically active, isotropic medium.