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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Optical computing ： ウィキペディア英語版 Optical computing Optical or photonic computing uses photons produced by lasers or diodes for computation. For decades, photons have promised to allow a higher bandwidth than the electrons used in conventional computers. Most research projects focus on replacing current computer components with optical equivalents, resulting in an optical digital computer system processing binary data. This approach appears to offer the best short-term prospects for commercial optical computing, since optical components could be integrated into traditional computers to produce an optical-electronic hybrid. However, optoelectronic devices lose 30% of their energy converting electronic energy into photons and back. This also slows transmission of messages. All-optical computers eliminate the need for optical-electrical-optical (OEO) conversions. Application-specific devices such as ''optical correlators'' have been designed that use principles of optical computing. Such devices can be used for detecting and tracking objects, for example and classification of serial time-domain optical data, for example. ==Optical components for binary digital computer== The fundamental building block of modern electronic computers is the transistor. To replace electronic components with optical ones, an equivalent optical transistor is required. This is achieved using materials with a non-linear refractive index. In particular, materials exist〔https://www.rp-photonics.com/nonlinear_index.html〕 where the intensity of incoming light affects the intensity of the light transmitted through the material in a similar manner to the voltage response of an electronic transistor. Such an "optical transistor"〔Jain, K. and Pratt, Jr., G. W., "Optical transistors and logic circuits embodying the same", U.S. Pat. 4,382,660, issued May 10, 1983.〕 can be used to create optical logic gates,〔 which in turn are assembled into the higher level components of the computer's CPU. These will be non linear crystals used to manipulate light beams into controlling others. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Optical computing」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.