Results 201 to 210 of about 431,360 (249)

Manipulating Surface Band Bending of III‐Nitride Nanowires with Ambipolar Charge‐Transfer Characteristics: A Pathway Toward Advanced Photoswitching Logic Gates and Encrypted Optical Communication

Advances in Materials, 2023
The operational principle of semiconductor devices critically relies on the band structures that ultimately govern their charge‐transfer characteristics.
Wei Chen, Danhao Wang, Weiyi Wang, Yang Kang, Xin Liu, Shih-Hao Fang, Liuan Li, Yuanmin Luo, Kun Liang, Yuying Liu, Dongyang Luo, Muhammad Hunain Memon, Huabin Yu, Wengang Gu, Zhenghui Liu, Wei Hu, Haiding Sun   +16 more
semanticscholar   +1 more source

All-optical logic gates using dielectric-loaded waveguides with quasi-rhombus metasurfaces.

Optics Letters, 2020
Nanostructure and nanoantenna-based all-optical (AO) devices have attracted significant research interests in recent years due to their small size, high information capacity, ultrafast processing, low power consumption, and overall practicality. Here, in
Chaonan Yao, A. Kotb, Bin Wang, S. Singh, Chunlei Guo   +4 more
semanticscholar   +1 more source

An introduction to optically bistable devices and photonic logic

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1984
Abstract The physical principles of the phenomenon of optical bistability are described and it is shown that a family of devices or ‘optical circuit elements can be realized including memories, logic gates and amplifiers. The current range of materials employed and of properties demonstrated is reviewed: it is concluded that with the ...
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All-optical AND and XOR logic gates in a single device

Nonlinear Guided Waves and Their Applications, 2002
We simulate an all-optical device which performs the AND and XOR logic operations. The device is based on the Kerr-like nonlinear effect present in AlGaAs optimised to operate at 1.55 micrometers.
Marco A. Magaña Cervantes, J. Stewart Aitchison   +1 more
openaire   +1 more source

Use of deformable mirror devices in optical logic functions

Optical Society of America Annual Meeting, 1991
Weighted-outer-product processing, a generalization of the bilinear transform, plays an important role in many computing, signal processing, and image processing applications. A technique for the implementation of optical logic functions, the use of such a processor, is presented in this paper.
Mohammed E. Hoq, Thomas F. Krile, John F. Walkup   +2 more
openaire   +1 more source

Cascade-connective optical parallel logic processor using electrophotonic devices

Applied Optics, 1992
To perform image or arithmetic processing optically, it is necessary that a large number of required optical processors be connected in a series. For such cascade connections, however, coding and decoding processes are undesirable because of the necessity for the complicated hardware that often results.
S, Kawai, Y, Tashiro, H, Ichinose, K, Kasahara   +3 more
openaire   +2 more sources

The Crossed Fabry-Perot Resonator As An Optical Logic Device

SPIE Proceedings, 1989
We consider the potential application of two crossed Fabry-Perot resonators for optical logic operations, such as for a photonic switch or an optical transistor. The crossed resonator is a three-port device that allows the signal to be separated from the control inputs and can yield cascadable gain.
David A. Holm, Barbara A. Capron
openaire   +1 more source

Prospects For Optical Computing Devices Based On Bistable And Logic Plates

SPIE Proceedings, 1989
Optical logic and memory components for use in cellular image processing are discussed. The application of the nonlinear optical responses of the components to programmable logic units and numeric units leads to novel architectural features. A tolerance methodology for the units is described.© (1989) COPYRIGHT SPIE--The International Society for ...
Brian S. Wherrett, John F. Snowdon
openaire   +1 more source

Design of a multi-bits input optical logic device with high intensity contrast based on plasmonic waveguides structure

Optics Communications, 2019
Optical logic devices are the fundamental building blocks for optical computing. In this paper, a compact optical logic device based on plasmonic waveguides is designed and investigated numerically.
Liu Zihua, Li-zheng Ding, Yi Jiapu, Zhongchao Wei, Jianping Guo   +4 more
semanticscholar   +1 more source

Photonic Crystal Waveguide and Cavities for all-Optical Logic Devices

2018 Second International Conference on Inventive Communication and Computational Technologies (ICICCT), 2018
Photonic crystal (PhC) waveguides and cavities are widely used structures for enhancement of output for photonic integrated devices. In this paper, we have presented a numerical investigation of light flow in two-dimensional PhC waveguides and cavities.
V. Mahesh, Sanjaykumar C. Gowre, Savita Soma, Sanjeev P. Gogga   +3 more
openaire   +1 more source