master grating
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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
Holographic grating — A holographic grating is a type of diffraction grating formed by an interference fringe field of two laser beams whose standing wave pattern is exposed to a polished substrate coated with photoresist. Processing of the exposed medium results in a … Wikipedia
Holography — (from the Greek, ὅλος hólos whole + γραφή grafē writing, drawing) is a technique that allows the light scattered from an object to be recorded and later reconstructed so that it appears as if the object is in the same position relative to the… … Wikipedia
Monochromator — in a x ray beamline at the Advanced Photon Source, Argonne National Laboratory. A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of… … Wikipedia
Residential colleges of Rice University — The residential colleges of Rice University comprise eleven separate residential colleges which function as the primary housing, dining, and social organization for undergraduate students. The system was established in 1957 and was inspired by… … Wikipedia
La Seo Cathedral — at night The Cathedral of the Savior (Spanish: Catedral del Salvador) is a Roman Catholic cathedral in Zaragoza, Spain. It is part of the World Heritage Site Mudéjar Architecture of Aragon. The cathedral is located on the Plaza de la Seo and is… … Wikipedia
Bell Rock Lighthouse — Infobox lighthouse|name= Bell Rock Lighthouse location= Inchcape, offshore from Arbroath, Scotland caption= coordinates = coord|56.4342| 2.3873|region:GB type:landmark|display=inline,title yearbuilt=1807 1810 yearlit= 1811 elevation=28 m… … Wikipedia
Bonkers (TV series) — This article is about the Disney animated series. For other TV shows with the same title, see Bonkers (disambiguation). Bonkers Bonkers intertitle Format Animation … Wikipedia
Optical vortex — An optical vortex (also known as a screw dislocation or phase singularity) is a zero of an optical field, a point of zero intensity. Research into the properties of vortices has thrived since a comprehensive paper by Nye and Berry, in 1974,[1]… … Wikipedia
Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after … Wikipedia
List of Pokémon episodes — This is a list of episodes of the Pokémon animated series (ポケットモンスター, Poketto Monsutā?, Pocket Monsters). The division between seasons of Pokémon is based on the openings of each episode, and may not reflect the actual production season. The… … Wikipedia
