Results 211 to 220 of about 431,360 (249)

All-Optical Surface Plasmonic Universal Logic Gate Devices

Plasmonics, 2016
We have introduced optically controlled two-stage cascaded surface plasmonic two-mode interference waveguide structure (having silicon core and silver upper and lower cladding) as universal gates. GaAsInP cladding is used in left and right side of core for optical pulse controlled cladding refractive index modulation which controls propagation of ...
Nilima Gogoi, Partha Pratim Sahu
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A proposal for a resonant opto-electronic optical logic device

Optical and Quantum Electronics, 1987
On propose un nouveau dispositif combinant l'effet optique et l'effet electronique pour obtenir un systeme a 3 ...
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Photonic synaptic device capable of optical memory and logic operations

Conference on Lasers and Electro-Optics, 2017
We demonstrate an optically-driven artificial synapse based on a graphene hybrid phototransistor. Both optical memory function (long-term plasticity) and logic operations are achieved, which adds important new capabilities to photonics enabled neuromorphic computing.
Shuchao Qin, Yujie Liu, Xiaomu Wang, Yongbing Xu, Yi Shi, Rong Zhang, Fengqiu Wang   +6 more
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Introducing Chiro-optical Activities in Photonic Synapses for Neuromorphic Computing and In-Memory Logic Operations.

ACS Nano
In artificial synaptic devices aimed at mimicking neuromorphic computing systems, electrical or optical pulses, or both, are generally used as stimuli.
Soirik Dan, Subham Paramanik, A. Pal
semanticscholar   +1 more source

Printed On‐Chip Perovskite Heterostructure Arrays for Optical Switchable Logic Gates

Advances in Materials
The use of optoelectronic devices for high‐speed and low‐power data transmission and computing is considered in the next‐generation logic circuits. Heterostructures, which can generate and transmit photoresponse signals dealing with different input ...
Hongfei Xie, Sisi Chen, Xu Yang, Qi Pan, Tangyue Xue, Zeying Zhang, Yuming Hu, Jimei Chi, Lijun Cheng, Bingda Chen, Yanlin Song, Meng Su   +11 more
semanticscholar   +1 more source

Optical logic devices based on spatial multiwaveguide system

China-Ireland International Conference on Information and Communications Technologies (CIICT 2007), 2007
Based on the weakly coupled mode theory, the coupled-mode equations of the spatial multiwaveguide system are presented in general. The intensity distributions in each waveguide are determined by a numerical method. Optical logic devices based on spatial multiwaveguide system are proposed. The analysis result shows that the spatial multiwaveguide system
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Compact electro-optical programmable logic device based on graphene–silicon switches

Photonic Network Communications, 2019
A compact electro-optical programmable logic device (PLD) which can provide any of 16 possible minterms of four Boolean variables on an optical signal is demonstrated in this paper. The presented structure is based on electro-optical graphene–silicon switches that consist of a Mach–Zehnder interferometer in which a few-layer graphene is embedded in ...
Hossein Zivarian, Abbas Zarifkar
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Module for optical logic circuits using symmetric self-electrooptic effect devices

Applied Optics, 1990
An optical module designed to perform cascadable optical logic using arrays of symmetric self-electrooptic effect devices (S-SEEDs) is described. The operation of an array of 7 x 3 devices with optical windows spaced by 20 microm is demonstrated including both array preset and individual device switching.
M E, Prise, N C, Craft, R E, Lamarche, M M, Downs, S J, Walker, L A, D'Asaro, L M, Chirovsky   +6 more
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All-optical logic gates and a half-adder based on lithium niobate photonic crystal micro-cavities

Chinese Optics Letters (COL), 2019
All-optical logic gates including AND, XOR, and NOT gates, as well as a half-adder, are realized based on two-dimensional lithium niobate photonic crystal (PhC) circuits with PhC micro-cavities.
Chenghao Lu, B. Zhu, Chuanyi Zhu, Licheng Ge, Yi’an Liu, Yuping Chen, Xianfeng Chen   +6 more
semanticscholar   +1 more source

All optical logic performance of quantum dot semiconductor amplifier-based devices

SPIE Proceedings, 2005
The performances of all-optical logic gates AND, OR, XOR, NOT based on quantum dot semiconductor optical amplifier (QD SOA) devices have been simulated. The saturation power, optical gain and optical phase response of a QD SOA has been analyzed numerically using a rate equation model of quantum dots embedded in a wetting layer.
H. Sun, Q. Wang, H. Dong, N. K. Dutta
openaire   +1 more source