- speckle beam
- кв. эл спекл-пучок, пучок со спекл-структурой
English-Russian electronics dictionary .
speckle beam
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Speckle pattern — A speckle pattern is a random intensity pattern produced by the mutual interference of a set of wavefronts. This phenomenon has been investigated by scientists since the time of Newton, but speckles have come into prominence since the invention… … Wikipedia
Electronic speckle pattern interferometry — (ESPI) [Jones R Wykes C, Holographic and Speckle Interferometry, 1989, Cambridge University Press] , also known as TV Holography, is a technique which uses laser light, together with video detection, recording and processing to visualise static… … Wikipedia
Eye testing using speckle — Laser speckle can be employed as a method for conducting a very sensitive eye test [Ennos AE, 1996, Phys. Educ, 31, 138 142] .When a surface is illuminated by a laser beam and is viewed by an observer, a speckle pattern is formed on the retina.… … Wikipedia
Diffraction — Computer generated intensity pattern formed on a screen by diffraction from a square aperture … Wikipedia
Optical heterodyne detection — is an important special case of heterodyne detection. In heterodyne detection, a signal of interest at some frequency is non linearly mixed with a reference local oscillator (LO) that is set at a close by frequency. The desired outcome is the… … Wikipedia
Continuous Scan Laser Doppler Vibrometry (CSLDV) — is a method of using a Laser Doppler Vibrometer (LDV) in which the laser beam is swept across the surface of a test subject to capture the motion of a surface at many points simultaneously. This is different from scanning laser vibrometry (SLDV)… … 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
David L. Fried — is a scientist, best known for his contributions to optics. Fried described what has come to be known as Fried s seeing diameter, or r0 (usually pronounced r naught). The seeing diameter is effectively a limiting aperture due to atmospheric… … Wikipedia
Antoine Émile Henry Labeyrie — (born 1943) is a French astronomer.Antoine Émile Henry Labeyrie graduated from the grande école SupOptique (École supérieure d optique). He invented speckle interferometry, and works with astronomical interferometers. Labeyrie concentrated… … Wikipedia
Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment … Wikipedia
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
