dispersion of the refractive index

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• Refractive index — Refraction of light at the interface between two media. In optics the refractive index or index of refraction of a substance or medium is a measure of the speed of light in that medium. It is expressed as a ratio of the speed of light in vacuum… …   Wikipedia

• 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 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 (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 — /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 — /dəsˈpɜʒən/ (say duhs perzhuhn), / ʃən/ (say shuhn) noun 1. the act of dispersing. 2. the state of being dispersed. 3. Physics a. the variation of the refractive index (of a medium) with the wavelength of electromagnetic radiation passing through …  

• 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

• Negative index metamaterials — A negative index metamaterial causes light to refract, or bend, differently than in more common positive refractive index materials. Negative index metamaterials or negative index materials (NIM) are artificial structures where the refractive… …   Wikipedia

• Zero-dispersion wavelength — In a single mode optical fiber, the zero dispersion wavelength is the wavelength or wavelengths at which material dispersion and waveguide dispersion cancel one another. In all silica based optical fibers, minimum material dispersion occurs… …   Wikipedia

• Gradient-index optics — is the branch of optics covering optical effects produced by a gradual variation of the refractive index of a material. An example of gradient index optics is the common mirage of a pool of water appearing on a road on a hot day. The pool is… …   Wikipedia