Results 181 to 190 of about 4,283,891 (213)

Multifunctional Ultra‐Wide‐Angle Spatial Optical Analog Computing in the Terahertz Regime

Advanced Functional Materials
Optical analog spatial differentiation, as the core mathematical operation in optical computing, can realize real‐time edge detection in image processing and efficient feature extraction in data compression.
Yong-Liang Liu, Bo Yu, Lesiqi Yin, Wen-Wei Liu, Qi Liu, Yi-Fei Xu, Minghui Deng, Zhan-Cheng Li, Cheng Gong, Hua Cheng, Shu-Qi Chen   +10 more
semanticscholar   +1 more source

Optical Analog Computers

Journal of the Optical Society of America, 1959
Certain applications of optical devices in digital computers are described, and a general theory of optical analog computers is developed. Certain characteristics of the photographic process make it possible to perform mathematical operations with photosensitive materials, as well as with photocells.
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Analog Optical Computing: Principles, Progress, and Prospects

Optics and Laser Technology
Svetlana N Khonina, Nikita V Golovastikov, Nikolay Kazanskiy   +2 more
exaly   +2 more sources

Analog Nanoscale Electro-Optical Synapses for Neuromorphic Computing Applications

ACS Nano, 2021
The typically nonlinear and asymmetric response of synaptic memristors to positive and negative electrical pulses makes the realization of accurate deep neural networks very challenging. Here, we integrate a two-terminal valence change memory (VCM) into a photonic/plasmonic circuit and show that the switching properties of this memristor become more ...
Kevin Portner, Manuel Schmuck, Paul Lehmann, Christoph Weilenmann, Christian Haffner, Ping Ma, Juerg Leuthold, Mathieu Luisier, Alexandros Emboras   +8 more
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Distributed Computation In Neural Networks And Their Optical Analogs

SPIE Proceedings, 1985
Two paths of inquiry are now converging: 1) the understanding of how parallel computation in neural networks implements pattern recognition tasks, and 2) the exploration of the broad spectrum of multiwave interactions in nonlinear crystals. Here, we will explore down the first path to the junction, just far enough to see why the computer which finally ...
openaire   +1 more source

Recent Advances in Spatial Analog Optical Computing

2018 Fifth International Conference on Millimeter-Wave and Terahertz Technologies (MMWaTT), 2018
Traditional analog computers that perform mathematical operations electronically or mechanically suffer from their relatively large size and slow response. Recently, the idea of spatial analog optical computing has overcome these restrictions. The different techniques to implement spatial analog optical computation can be categorized into two ...
Ali Pour Mohammad Qoli Vafa, Parisa Karimi, Amin Khavasi   +2 more
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All-Optical Analog AllReduce and Digital Switching using a Silicon Hybrid Computing-Switching Optical Processor

Optical Fiber Communications Conference and Exhibition
We propose and experimentally demonstrate all-optical AllReduce operation by dynamically configuring a 4×4 silicon optical switch, which is a fundamental collective operation on xPU clusters.
R. Konoike, K. Ikeda, Takeru Amano, G. Cong   +3 more
semanticscholar   +1 more source

Analog Optical Computing: Toward Sustainable Machine Learning Models and Beyond

European Conference on Optical Communication
We present a low-cost, room-temperature Analog Optical Computer (AOC) and its applications. Through hardware-applications co-design, AOC leverages the unique speed and parallelism of optics to accelerate machine learning inference and complex ...
F. Parmigiani, H. Ballani, G. Brennan, Burcu Canakci, Jia-Qi Chu, J. Clegg, D. Cletheroe, Fabian Falck, Christos Gkantsidis, J. Gladrow, K. Kalinin, D. Kelly, Heiner Kremer, Babak Rahmani, A. Rowstron   +14 more
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Accuracy issues for quantized analog optical computing

OSA Annual Meeting, 1993
The relatively low achievable bit accuracy of analog optical processors has been of considerable concern within the optical computing community.
Michael V. Morelli, John F. Walkup, Thomas F. Krile   +2 more
openaire   +1 more source

Time-stretch enabled multifunctional incoherent optical processor for analog-digital computing

Optical Frontiers
Optical information processing systems have attracted considerable attention in various signal sensing applications. The development of multifunctional architectures is crucial for extending their operational versatility.
Qiu-Quan Yan, Jun Zhang, Meili Shen, H. Ouyang, Hengzhu Liu, Hao Hao, Tian Jiang   +6 more
semanticscholar   +1 more source