index of dispersion

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• Index of dispersion — In probability theory and statistics, the index of dispersion,[1] dispersion index, coefficient of dispersion, or variance to mean ratio (VMR), like the coefficient of variation, is a normalized measure of the dispersion of a probability… …   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

• Dispersion-shifted fiber — (DSF) is a type of optical fiber made to optimize both low dispersion and low attenuation. Dispersion Shifted Fiber is a type of single mode optical fiber with a core clad index profile tailored to shift the zero dispersion wavelength from the… …   Wikipedia

• dispersion — I noun allocation, decentralization, diffraction, diffusion, disjunction, dispensation, dispersal, dissemination, dissipation, distribution, divergence, division, emanation, parting, radiation, refraction, scattering, separation, spread II index… …   Law dictionary

• Dispersion staining — Contents 1 Dispersion Staining 1.1 Becke Line Dispersion Staining 1.2 Oblique Illumination Dispersion Staining 1.3 Darkfield Illumination Dispersion Staining …   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

• Dispersion relation — The refraction of a light in a prism is due to dispersion. In physics and electrical engineering, dispersion most often refers to frequency dependent effects in wave propagation. Note, however, that there are several other uses of the word… …   Wikipedia

• dispersion — /di sperr zheuhn, sheuhn/, n. 1. Also, dispersal. an act, state, or instance of dispersing or of being dispersed. 2. Optics. a. the variation of the index of refraction of a transparent substance, as glass, with the wavelength of light, with the… …   Universalium

• dispersion staining —    A technique for refractive index determination that employs central or annular stops placed in the objective back focal plane of a microscope. Using an annular stop with the substage iris closed, a fiber mounted in a high dispersion medium… …   Forensic science glossary

• Index of optics articles — Optics is the branch of physics which involves the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it.[1] Optics usually describes the behavior of visible,… …   Wikipedia

• dispersion — dis•per•sion [[t]dɪˈspɜr ʒən, ʃən[/t]] n. 1) Also, dispersal an act or instance of dispersing or a state of being dispersed. 2) opt a) the variation of the index of refraction of a transparent substance, as glass, with the wavelength of light b)… …   From formal English to slang