Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Gauss's Law in Dielectrics01:17

Gauss's Law in Dielectrics

5.4K
Consider a polar dielectric placed in an external field. In such a dielectric, opposite charges on adjacent dipoles neutralize each other, such that the net charge within the dielectric is zero. When a polar dielectric is inserted in between the capacitor plates, an electric field is generated due to the presence of net charges near the edge of the dielectric and the metal plates interface. Since the external electrical field merely aligns the dipoles, the dielectric as a whole is neutral. An...
5.4K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

912
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
912
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

2.1K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity....
2.1K
Gauss's Law: Spherical Symmetry01:26

Gauss's Law: Spherical Symmetry

10.0K
A charge distribution has spherical symmetry if the density of charge depends only on the distance from a point in space and not on the direction. In other words, if the system is rotated, it doesn't look different. For instance, if a sphere of radius R is uniformly charged with charge density ρ0, then the distribution has spherical symmetry. On the other hand, if a sphere of radius R is charged so that the top half of the sphere has a uniform charge density ρ1 and the bottom half has a...
10.0K
Susceptibility, Permittivity and Dielectric Constant01:26

Susceptibility, Permittivity and Dielectric Constant

3.5K
When placed in an external electric field, a dielectric material gets polarized. The charge density in the dielectric material is given by the sum of the bound and free charge densities, while the total charge density can also be written in terms of the total electric field. The bound charge density can be measured in terms of polarization, leading to the relationship between electric displacement and polarization.
3.5K
Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

6.5K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
6.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rough layer scattering filled by elliptical cylinders from the method of moments combined with the characteristic basis function method and the Kirchoff approximation.

Journal of the Optical Society of America. A, Optics, image science, and vision·2021
Same author

Two domain decomposition methods, SDIM and CBFM, for scattering from a two-dimensional perfectly conducting rough surface: comparison and parametric study.

Journal of the Optical Society of America. A, Optics, image science, and vision·2020
Same author

Propagation-inside-layer-expansion method combined with physical optics for scattering by coated cylinders, a rough layer, and an object below a rough surface.

Journal of the Optical Society of America. A, Optics, image science, and vision·2013
Same author

Polarized infrared reflectivity of one-dimensional Gaussian sea surfaces with surface reflections.

Applied optics·2013
Same author

Extended propagation-inside-layer expansion method combined with the forward-backward method to study the scattering from an object above a rough surface.

Optics letters·2012
Same author

Polarized infrared emissivity of one-dimensional Gaussian sea surfaces with surface reflections.

Applied optics·2011

Related Experiment Video

Updated: Apr 3, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
10:35

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

12.8K

Efficient propagation-inside-layer expansion algorithm for solving the scattering from three-dimensional nested

Sami Bellez, Christophe Bourlier, Gildas Kubické

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |September 15, 2015
    PubMed
    Summary

    This study evaluates electromagnetic scattering from complex dielectric structures using the Poggio-Miller-Chang-Harrington-Wu integral equations and the method of moments. The iterative PILE method efficiently computes radar cross-section patterns for arbitrary shapes.

    More Related Videos

    Scattering And Absorption of Light in Planetary Regoliths
    11:34

    Scattering And Absorption of Light in Planetary Regoliths

    Published on: July 1, 2019

    11.1K
    Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
    10:16

    Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects

    Published on: February 8, 2014

    12.7K

    Related Experiment Videos

    Last Updated: Apr 3, 2026

    Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
    10:35

    Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

    Published on: September 26, 2014

    12.8K
    Scattering And Absorption of Light in Planetary Regoliths
    11:34

    Scattering And Absorption of Light in Planetary Regoliths

    Published on: July 1, 2019

    11.1K
    Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
    10:16

    Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects

    Published on: February 8, 2014

    12.7K

    Area of Science:

    • Electromagnetics and Computational Physics

    Background:

    • Electromagnetic scattering analysis is crucial for designing and understanding various physical phenomena.
    • Accurate modeling of complex dielectric structures presents significant computational challenges.

    Purpose of the Study:

    • To develop and validate an efficient numerical method for evaluating electromagnetic scattering from nested homogeneous dielectric bodies of arbitrary shapes.
    • To assess the performance of the proposed method for calculating full-polarized radar cross-section (RCS) patterns.

    Main Methods:

    • Formulation of the scattering problem using Poggio-Miller-Chang-Harrington-Wu integral equations.
    • Application of the Galerkin method of moments (MoM) with Rao-Wilton-Glisson basis functions to discretize the integral equations.
    • Solution of the resulting MoM matrix equation using the iterative Propagation-Inside-Layer Expansion (PILE) method.

    Main Results:

    • The PILE method successfully computes unknown surface current densities for the dielectric structures.
    • The method accurately predicts full-polarized radar cross-section (RCS) patterns.
    • Numerical results for canonical and arbitrary geometries show good agreement with FEKO software.

    Conclusions:

    • The PILE-based approach is validated as an efficient and accurate technique for analyzing electromagnetic scattering from complex dielectric bodies.
    • The method demonstrates effectiveness in computing full-polarized RCS patterns, offering a valuable tool for electromagnetic simulations.