dielectric dispersion

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• Dielectric dispersion — In physics, dielectric dispersion is the dependence of the permittivity of a dielectric material on the frequency of an applied electric field. Because there is always a lag between changes in polarization and changes in an electric field, the… …   Wikipedia

• Dispersion — may refer to: In physics: The dependence of wave velocity on frequency or wavelength: Dispersion (optics), for light waves Dispersion (water waves) Acoustic dispersion, for sound waves Dispersion relation, the mathematical description of… …   Wikipedia

• Dielectric relaxation — is the momentary delay (or lag) in the dielectric constant of a material. This is usually caused by the delay in molecular polarization with respect to a changing electric field in a dielectric medium (e.g. inside capacitors or between two large… …   Wikipedia

• Dielectric — A dielectric is an electrical insulator that can be polarized by an applied electric field. When a dielectric is placed in an electric field, electric charges do not flow through the material, as in a conductor, but only slightly shift from their …   Wikipedia

• Dielectric mirror — Two broadband dielectric mirrors being used in an optics experiment. A dielectric mirror is a type of a mirror composed of multiple thin layers of dielectric material, typically deposited on a substrate of glass or some other optical material. By …   Wikipedia

• Dispersion (optics) — This article is about dispersion of waves in optics. For other forms of dispersion, see Dispersion (disambiguation). In a prism, material dispersion (a wavelength dependent refractive index) causes different colors to refract at different angles …   Wikipedia

• Non-Radiative Dielectric waveguide (NRD) — Figure 1 Contents 1 Introduction 2 The dispersion relation in the NRD wave …   Wikipedia

• Martin Schadt — (1938), PhD, is a Swiss physicist and inventor. Contents 1 Biography 2 Achievements 3 Awards 4 Publications and P …   Wikipedia

• Capacitance — Electromagnetism Electricity · …   Wikipedia

• Maxwell–Wagner–Sillars polarization — In dielectric spectroscopy, large frequency dependent contributions to the dielectric response, especially at low frequencies, may come from build ups of charge. This, so called Maxwell Wagner Sillars polarization (or often just Maxwell Wagner… …   Wikipedia

• Havriliak-Negami relaxation — is an empirical modification of the Debye relaxation model, accounting for the asymmetry and broadness of the dielectric dispersion curve. The model was first used to describe the dielectric relaxation of some polymersfn|1, by adding two… …   Wikipedia