OPTICAL MEDIA

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Optical Media

Author : Friedrich Kittler
ISBN : 9780745640914
Genre : History
File Size : 46.23 MB
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Friedrich Kittler's lecture series provides a concise history of optical media from Renaissance linear perspective to late twentieth-century computer graphics. He begins by looking at European painting since the Renaissance in order to discern the principles according to which modern optical perception was organised. Kittler also discusses the development of various mechanical devices, like the camera obscura and the laterna magica, which were closely connected to the printing press and which played a pivotal role in the media war between the Reformation and the Counterreformation. After examining this history, Kittler then addresses the ways in which images were first stored and made to move through the development of photography and film. Kittler discusses the competitive relationship between photography and painting as well as between film and theater, as innovations like the Baroque proscenium or "picture-frame" stage evolved from elements that would later constitute cinema. The central question, however, is the impact of film on the ancient monopoly of writing, as it not only provoked new forms of competition for novelists but also fundamentally altered the status of books. In the final section, Kittler examines the development of electrical telecommunications and electronic image processing from television to computer simulations. In short, these lectures provide a comprehensive introduction to the history of image production, which is indispensable for anyone wishing to understand the prevailing audiovisual conditions of contemporary culture.
Category: History

Ghostly Apparitions

Author : Stefan Andriopoulos
ISBN : 9781935408352
Genre : History
File Size : 36.54 MB
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A media archaeology that traces connections between new media technologies and distinct cultural realms, considering topics that range from Kant's philosophy to somnambulist clairvoyants.
Category: History

Light Propagation In Linear Optical Media

Author : Glen D. Gillen
ISBN : 9781351831352
Genre : Science
File Size : 65.71 MB
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Light Propagation in Linear Optical Media describes light propagation in linear media by expanding on diffraction theories beyond what is available in classic optics books. In one volume, this book combines the treatment of light propagation through various media, interfaces, and apertures using scalar and vector diffraction theories. After covering the fundamentals of light and physical optics, the authors discuss light traveling within an anisotropic crystal and present mathematical models for light propagation across planar boundaries between different media. They describe the propagation of Gaussian beams and discuss various diffraction models for the propagation of light. They also explore methods for spatially confining (trapping) cold atoms within localized light-intensity patterns. This book can be used as a technical reference by professional scientists and engineers interested in light propagation and as a supplemental text for upper-level undergraduate or graduate courses in optics.
Category: Science

Laser Beam Propagation In Nonlinear Optical Media

Author : Shekhar Guha
ISBN : 9781439866399
Genre : Science
File Size : 66.28 MB
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"This is very unique and promises to be an extremely useful guide to a host of workers in the field. They have given a generalized presentation likely to cover most if not all situations to be encountered in the laboratory, yet also highlight several specific examples that clearly illustrate the methods. They have provided an admirable contribution to the community. If someone makes their living by designing lasers, optical parametric oscillators or other devices employing nonlinear crystals, or designing experiments incorporating laser beam propagation through linear or nonlinear media, then this book will be a welcome addition to their bookshelf." —Richard Sutherland, Mount Vernon Nazarene University, Ohio, USA Laser Beam Propagation in Nonlinear Optical Media provides a collection of expressions, equations, formulas, and derivations used in calculating laser beam propagation through linear and nonlinear media which are useful for predicting experimental results. The authors address light propagation in anisotropic media, oscillation directions of the electric field and displacement vectors, the walk-off angles between the Poynting and propagation vectors, and effective values of the d coefficient for biaxial, uniaxial, and isotropic crystals. They delve into solutions of the coupled three wave mixing equations for various nonlinear optical processes, including quasi-phase matching and optical parametric oscillation, and discuss focusing effects and numerical techniques used for beam propagation analysis in nonlinear media, and phase retrieval technique. The book also includes examples of MATLAB and FORTRAN computer programs for numerical evaluations. An ideal resource for students taking graduate level courses in nonlinear optics, Laser Beam Propagation in Nonlinear Optical Media can also be used as a reference for practicing professionals.
Category: Science

Solitons Wave Propagation In

Author : Chun-Chung Mak
ISBN : 1374721271
Genre : Technology & Engineering
File Size : 69.47 MB
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This dissertation, "Solitons and Wave Propagation in Hydrodynamical and Optical Media" by Chun-chung, Mak, 麥振忠, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstractofthesisentitled SolitonsandWavePropagation inHydrodynamicalandOpticalMedia submittedby Chun-ChungMAK forthedegreeofMasterofPhilosophy attheUniversityofHongKong inAugust2004 Solitons, which have been extensively studied over the past five decades, rep- resent one of the most important concepts in nonlinear science. These particle-like nonlinearwaveshavebeendemonstratedboththeoreticallyandexperimentally, and arebelievedtohavehighengineeringpotentialinsomeapplications. Theaimofthis studywastostudythesolitonswhichexistinsomeconfigurationsofhydrodynam- ical and optical media. In particular, soliton solutions of a number of completely integrablenonlinearevolutionequationsarenewlyobtainedorre-derived. The Hirota's bilinear method is adopted to obtain the exact soliton solutions in this study. This differentiation-based method, which requires no sophisticated mathematics, isabletoderiveexact, analyticsolutionsefficiently. An optical fiber system with decaying/amplifying and broadening/compressing effects is modelled by a variable coefficient nonlinear Schro]dinger (NLS) equa- tion. This equation is also able to describe the propagation of optical pulses in a dispersion-managed fiber system, averaged over one dispersion map. Bright anddark, one- and two-soliton solutions are obtained. These solitons are shown to havevaryingwavenumberandfrequencyintheirsolitonexpansions. Inadditionto the decaying and broadening effects, the bright solitons also demonstrate a special property, namely that the trajectory of their center of mass can have three possible modesinthex-t domain. A coupled NLS system with a group velocity mismatch is considered to be the relevant equation for a three-layer stratified shear flow. While the coupled NLS systemhasbeenstudiedindetail, theeffectofaddingagroupvelocitymismatchis still unknown. Dark one- and two-soliton solutions are obtained for an integrable system. TheSasa-Satsumaequationisoneintegrablesettingofthemoregeneralhigher- orderNLSequation, whichtakesintoaccounthigher-ordernonlineareffects. Adark one-solitonsolutionisobtained, butitisfoundtohaveonelessarbitraryparameter than its NLS counterpart. Because of this additional constraint, a dark two-soliton solutionisnotfound. Somespecialexpansionseriesmaybeneededforthebilinear formtoobtainmulti-solitonsolutions, andtheseareleftforfuturestudies. Inmicrochannelflows, interfacialeffectssuchastheelectricdoublelayercannot be neglected. This layer will interact with the ions and hence the liquid flow in the microchannel. The associated electric potential is shown to be modelled by the sinh-Poisson equation, a different version of which also has applications in vortex dynamics. Techniques from nonlinear waves are applied to solve for one- to three- solitonsolutions, buttheyarefoundtobethesameasthoseobtainedforthecontexts of vortex dynamics. A comparison is also made between an exact doubly periodic solutionandanapproximatesolutionfromtheDebye-Hu]ckelapproximation, anda considerableamountofdifferenceisfoundinsomeregions. DOI: 10.5353/th_b3051366 Subjects: Solitons Fiber optics Hydrodynamics
Category: Technology & Engineering

Optical Media

Author : David Bearman
ISBN : OCLC:20998437
Genre : Archives
File Size : 88.37 MB
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Category: Archives

Optical Computer Storage

Author : Source: Wikipedia
ISBN : 1233111728
Genre :
File Size : 54.44 MB
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 27. Chapters: MD Data, High definition optical disc format war, Optical disc drive, CD-ROM, Hi-MD, Optical media preservation, Magneto-optical drive, Write Once Read Many, Comparison of popular optical data-storage systems, Floptical, Optical jukebox, Eight-to-fourteen modulation, Constant linear velocity, Joliet, LIMDOW technology, Disc spanning, Constant angular velocity, Combo drive, Holographic drive, DataPlay, Super Multi, High density storage media. Excerpt: A format war took place between the Blu-ray Disc and HD DVD optical disc standards for storing high definition video and audio. These standards emerged between 2000 and 2002 and attracted both the mutual and exclusive support of major consumer electronics manufacturers, personal computer manufacturers, television and movie producers and distributors, and software developers. Blu-ray and HD DVD players became commercially available starting in 2006. In early 2008, a tipping point was passed when several studios and distributors shifted to Blu-ray disc. On February 19, 2008, Toshiba officially announced that it would stop the development of the HD DVD players, conceding the format war to the Blu-ray Disc format. The Blu-ray/HD DVD conflict resembled the earlier videotape format war between VHS and BetaMax, partly because of Sony's strong involvement in both episodes. These format wars have often proved destructive to both camps because consumers, afraid of committing to a losing standard, will refrain from purchasing either. Format wars have been avoided in notable cases such as the DVD Forum for the unified DVD standard, the Grand Alliance for the HDTV standard, and the Wi-Fi Alliance for wireless networking standards. The emergence of high definition players followed the entry of HDTV televisions into the mainstream market in the mid-2000s. Consumer-grade high definitio...
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