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Optical coating (13649 bytes)
1: [[Image:coating-1.jpg|right|Optically coated mirrors and lenses]] 3: ...lowing the production of [[dichroic]] [[thin-film optical filters]]. 5: ==Types of coating== 6: ...the mirror; aluminium is cheapest and most common coating, and yields a reflectivity of around 88%-92% over... 8: By controlling the thickness and density of metal coatings, it is possible to decrease the reflectivity and... Industrial coating (307 bytes) 1: ...tance. The most common polymer used in industrial coatings is epoxy. Magnetic media coating (2946 bytes) 1: The '''Magnetic Media Layer''' is a very thin coating of magnetic material on a hard disk drive which i... Optical waveguide (705 bytes) 1: ... as a transmission medium in local or long haul [[optical communications|communication systems]]. 3: ...le-mode optical fiber|single-mode]], [[Multi-mode optical fiber|multi-mode]]), [[refractive index]] distrib... Optical phenomenon (5194 bytes) 3: ...n of [[light]] and [[matter]]. See also [[list of optical topics]] and [[optics]] 5: Common optical phenomena are often due to the interaction of lig... 7: ... are simply interesting aspects of [[optics]], or optical effects. The colors generated by a prism are ofte... 9: ==A list of optical phenomena== 11: Entopic phenomena include optical phenomena arising from the structures of the [[ey... Optical astronomy (710 bytes) 1: '''Optical astronomy''' encompasses a wide variety of observ... 5: Optical astronomy also includes looking up at night. Optical illusion (6043 bytes) 1: An '''optical illusion''' is any [[illusion]] that deceives the... 3: ...ptical illusions can naturally happen by specific optical tricks that show particular assumptions in the hu... 5: ...l.greysquares.arp.600pix.jpg|250px|thumb|right|An optical illusion. Square A is exactly the same shade of g... 7: A [[mirage]] is a natural illusion that is an [[optical phenomenon]]. 9: ...orizon) is another natural illusion; it is not an optical phenomenon, but rather a cognitive or perceptual ... Optical communication (2280 bytes) 1: '''Optical communication''' is any form of [[telecommunicati... 3: There are many forms of non-technological optical communication, including [[body language]] and [[... 5: ...]s; fires were the earliest form of technological optical communication. 13: == Modern optical communications == 15: ...ources. Often the light is in the [[infrared]] [[optical spectrum|spectrum]], rather than being [[visible ... Optical window (1219 bytes) 1: ...st a little of what is out there. It is called "optical" because the wavelengths we can [[Visual percepti... 5: In [[medical physics]], the optical window is the portion of the visible and infrared... Optical engineering (523 bytes) 1: ...uch as optical sensors and metrological apparati. Optical engineering metrology utilises the latter to meas... Optical computer (6087 bytes) 1: ... more traditional [[electron]]-based computation. Optical computing is a major branch of the study of [[Pho... 2: ... [[laser|lasers]] and the light guided down the [[optical fiber]]. The conversion process between electroni... 4: ...er, [[transistor]]s that are composed entirely of optical components, if they exist, are currently only in ... 8: ...ersion is necessary now because we don't have all-optical versions of all the myriad switching devices requ... 10: ...4 Mpixels and above) can be fabricated like large optical arrays, each passing, switching or filtering each... Optical tweezers (1583 bytes) 1: '''Optical tweezers''' are the [[Laser applications|applicat... 7: ...controllable beams using a 2D-array of switchable optical phase delay elements which form a controllable / ... 10: ...ticalTweezers/ Non-intrusive Micromanipulation by Optical Tweezers (Umeå University, Sweden)] 11: ...muenchen.de/tI/galIT1n01.html Slide show of using optical tweezers (Medical University Munich)] 12: ...rd.edu/labs/bacteria/index_movies.html Videos] of optical tweezers being used on bacteria. Optical telescope (4553 bytes) 1: An '''optical telescope''' is a [[telescope]] which is used to ... 3: ...s of [[photon]]s". There are two primary types of optical telescope: [[reflecting telescope|reflectors]] (w... 5: ...virtual image. Many types of telescopes fold the optical path with '''secondary''' or '''tertiary''' mirro... 8: ...lescopes, linked together by carefully-controlled optical paths. The sensitivity of a telescope is determin... 14: The light-gathering power of an optical telescope is directly related to the [[diameter]]... Optical effect (508 bytes) 1: ...lm]] effects that are created entirely through an optical process using film, light, shadow, [[lens (optics... Optical interferometry (3452 bytes) 3: '''Optical interferometry''' is a technique of [[interferome... 4: ...bining light from multiple sources in an [[optics|optical]] 7: The technique of optical interferometry can make use of [[white light]], 12: the optical path lengths travelled by the interfering beams o... 15: Of the uses of optical interferometry mention should be made of the Optical telegraph (1845 bytes) 1: ...arpness of the human eye. In practical use, most optical telegraphs used [[relay league]]s to bridge longe... 3: ... century]] a complete and working installation of optical telegraph. During the [[French Revolution|Revolut... 7: ...s and dashes. More mobile than previous means of optical telegraphy, this code was used extensively by the... Optical fiber (10568 bytes) 1: ...e:fibreoptic.jpg|thumb|Fiber Optic strands]]An '''optical fiber''' in American English or '''fibre''' in Br... 2: ... branch of science and engineering concerned with optical fibers. 4: == Uses of optical fiber == 6: ...plications are always glass, because of the lower optical absorption of glass. The light transmitted throug... 12: ... linearity and dispersion behavior of single-mode optical fiber, data rates of up to 40 [[gigabit]]s per se... Optical isomerism (6502 bytes) 2: ...able [[mirror image]]s<sup>*</sup> of each other. Optical isomers are known as ''[[chirality (chemistry)|ch... 4: ...since stereoisomerism needn't necessarily imply [[optical activity]]). 21: ==Properties of optical isomers== 33: ... The designations (+) and (-), however, indicate optical isomers that rotate plane polarized light to the ... 37: ...light based upon the concentrations of all of the optically active isomers in the solution, and the amount ... Optical brightener (976 bytes) 1: An '''optical brightener''' is an additive designed to enhance ... 3: ...s also means that a white surface treated with an optical brightener may actually reflect more visible spec... 5: ...nation. Paper used for banknotes does not contain optical brighteners, so a common method for detecting [[f... Optical autocorrelation (7074 bytes) 5: [[image:optical-field-autocorrelation-setup.png|thumb|400px|right... 19: [[image:optical-field-autocorrelation.png|thumb|500px|center|Two ... 27: ...\tau))^2</math>. Only the beam propagating on the optical axis, proportional to the cross-product <math>E(t... 37: [[image:optical-intensity-autocorrelation.png|thumb|500px|center|... 41: [[image:optical-interferometric-autocorrelation-setup.png|thumb|4...
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