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Development Of An Optical Parallel Logic Device And A Half-Adder Circuit For Digital Optical Processing

Optical Engineering, 1979
An Optical Parallel Logic (OPAL) device which performs Boolean algebraic operations on two binary images has been developed. This device consists of a photoconductor and an electro-optic light modulating material appropriately arranged to bring about an in-teraction between the input signals.
Ravindra A. Athale, Sing H. Lee
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All-optical compact surface plasmonic two-mode interference device for optical logic gate operation

Applied Optics, 2015
In this paper, we have proposed an ultra-compact surface plasmonic two-mode interference (SPTMI) coupler having a silicon core, silver upper and lower cladding, and GaAsInP left and right cladding for basic logic gate operations. By modulating the refractive index of the GaAsInP cladding with incidence of optical pulse energy, we have shown coupling ...
Nilima, Gogoi, Partha Pratim, Sahu
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The Nonlinear Coherent Coupler a New Optical Logic Device

Integrated and Guided Wave Optics, 1980
This paper concerns a new optical logic device. This new device is a conventional coherent coupler driven with high enough input intensity so that effects nonlinear in the applied field become important. We deal with a third order nonlinearity assuming that either: the second order nonlinearity vanishes (by symmetry) or that the second order ...
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Optical Threshold Logic Devices And Design For Agile Phased-Array Beamsteering

SPIE Proceedings, 1988
The architectural and algorithmic design aspects of a digital optical processor for high performance adaptive radar array beam forming have been studied. Device research to provide the required integrated optics processor elements has been initiated. The design concept has advantages of modularity and expandability, as well as inherent embodiment of ...
S Gustafson   +6 more
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Design and optimization of photonic crystal based all-optical logic gate with enhanced contrast ratio

Optical and quantum electronics, 2023
Sandip Swarnakar   +3 more
semanticscholar   +1 more source

The optical logic device and GaAs groove grating fabricated by ion technique

Journal of Vacuum Science & Technology B: Microelectronics Processing and Phenomena, 1990
This paper describes the work of fabricating optical logic devices and GaAs groove grating by the LKJ-1B ion beam etching machine and the LDJ-2A ion beam sputtering film system developed in our laboratory. The two-dimension multiple optical beam splitter is a device that produces phase delay which is determined by groove depth [Δφ=(2π/λ)(n−1)d].
You-song Tao, Jin-sheng Liu
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Realization of Ultra-Compact All-Optical Logic AND Gate Based on Photonic Crystal Waveguide

Advances in Communication, Devices and Networking, 2021
Kamanashis Goswami   +3 more
semanticscholar   +1 more source

Engineered Photonic Materials for Nanoscale Optical Logic Devices

2004
Abstract : Two major activities of this grant were to develop a generalized approach to the enhancement of nonlinear optical effects based upon slow-light propagation in artificial resonators and the study of nonlinear self-focusing in periodic arrays of photonic microcavities, thereby providing a mechanism for the formation of very narrow (i.e ...
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