surface grating

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• Surface plasmon — Surface plasmons, also referred to in the literature as surface plasma polaritons, are fluctuations in the electron density at the boundary of two materials. Plasmons are the collective vibrations of an electron gas (or plasma) surrounding the… …   Wikipedia

• Grating — Grat ing, n. [See 2d Grate.] 1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent. [1913 Webster] 2. (Optics) A system of close equidistant parallel lines or …   The Collaborative International Dictionary of English

• Surface phonon — Phonons are collective lattice vibration modes, and surface phonons are those particular modes associated with surfaces; they are an artifact of periodicity, symmetry, and the termination of bulk crystal structure associated with the surface… …   Wikipedia

• grating — grat·ing grāt iŋ n a system of close equidistant and parallel lines or bars ruled on a polished surface to produce spectra by diffraction called also diffraction grating * * * grat·ing (graґting) a grill or grid, or something resembling such a… …   Medical dictionary

• grating —    A reflective surface covered with evenly spaced, microscopic grooves, whose purpose is to separate the individual wavelengths from “white” light. The distance between grooves and the angle of the faces are determined by the wavelengths to be… …   Forensic science glossary

• grating — noun Date: 1622 1. a wooden or metal lattice used to close or floor an opening 2. a partition, covering, or frame of parallel bars or crossbars 3. a system of close equidistant and parallel lines or bars ruled on a polished surface to produce… …   New Collegiate Dictionary

• diffraction grating — Grating Grat ing, n. [See 2d Grate.] 1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent. [1913 Webster] 2. (Optics) A system of close equidistant parallel… …   The Collaborative International Dictionary of English

• Diffraction grating — A very large reflecting diffraction grating. In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The directions of these beams …   Wikipedia

• diffraction grating — Physics. a band of equidistant, parallel lines, usually more than 5000 per inch (2000 per centimeter), ruled on a glass or polished metal surface for diffracting light to produce optical spectra. Also called grating. [1865 70] * * * ▪ optics… …   Universalium

• Echelle grating — An echelle grating (from French, échelle , meaning stairs or ladder) is a type of diffraction grating which is characterised by a relatively low grooves density but is optimized for high diffraction orders. Echelle gratings are, like other types… …   Wikipedia

• Blazed grating — A blazed grating is a special type of diffraction grating used in astronomical telescopes.Blazed gratings produce maximum efficiency at a specified wavelength; that is, a diffraction grating that is blazed at 250nm will operate most efficiently… …   Wikipedia