Results 1 to 10 of about 201 (68)

Optical Logic Gates Based on Z-Shaped Silicon Waveguides at 1.55 μm

Micromachines, 2023
In the last ten years, silicon photonics has made considerable strides in terms of device functionality, performance, and circuit integration for a variety of practical uses, including communication, sensing, and information processing.
Amer Kotb, Kyriakos E. Zoiros, Antonios Hatziefremidis, Chunlei Guo   +3 more
doaj   +3 more sources

Low Delay Time All Optical NAND, XNOR and OR Logic Gates Based on 2D Photonic Crystal Structure [PDF]

Journal of Electrical and Computer Engineering Innovations, 2020
Background and Objectives: Recently, photonic crystals have been considered as the basic structures for the realization of various optical devices for high speed optical communication.Methods: In this research, two dimensional photonic crystals are used ...
F. Parandin, M. Malmir
doaj   +1 more source

Optical Logic Gates Excited by a Gauss Vortex Interference Beam Based on Spatial Self-Phase Modulation in 2D MoS₂

Nanomaterials, 2023
Vortex beams with optical orbital angular momentum have broad prospects in future high-speed and large-capacity optical communication. In this investigation of materials science, we found that low-dimensional materials have feasibility and reliability in
Xueyu Chen, Ge Ding, Linwei Tang, Haijian Zou, Chaofeng Wang, Shuqing Chen, Chenliang Su, Ying Li   +7 more
doaj   +1 more source

All-optical logic gate computing for high-speed parallel information processing

Opto-Electronic Science, 2022
Optical computing and optical neural network have gained increasing attention in recent years because of their potential advantages of parallel processing at the speed of light and low power consumption by comparison with electronic computing.
Shuming Jiao, Junwei Liu, Liwen Zhang, Feihong Yu, Guomeng Zuo, Jingming Zhang, Fang Zhao, Weihao Lin, Liyang Shao   +8 more
doaj   +1 more source

Design of Ultrasmall Plasmonic Logic Gates Based on Single Nanoring Dielectric-Metal-Dielectric Waveguide

International Journal of Optics, 2023
This paper proposes a new configuration of dielectric-metal-dielectric (DMD) waveguides to design optical logic gates. Seven plasmonic logic gates, including NOT, OR, AND, NAND, NOR, XOR, and XNOR, are realized by one nanoring and four DMD plasmonic ...
Salma Ali Sadeq, Mohsen Hayati, Saba Khosravi   +2 more
doaj   +1 more source

Metal−Organic Framework-Based Ultrafast Logic Gates for High-Security Optical Encryption

Ultrafast Science, 2023
Optical logic gates call for materials with giant optical nonlinearity to break the current performance bottleneck. Metal–organic frameworks (MOFs) provide an intriguing route to achieve superior optical nonlinearity benefitting from structural diversity
Junhong Yu, Yadong Han, Longyu Wang, Yibing Liu, Hang Zhang, Xuan Chen, Xuezhi Liu, Zhengbang Wang, Jianbo Hu   +8 more
doaj   +1 more source

High Transmission All-Optical Combinational Logic Circuits Based on a Nanoring Multi-Structure at 1.31 µm

Micromachines, 2023
The main purpose of this study is to design combinational logic gates based on a novel configuration of insulator–metal–insulator (IMI) nanoring plasmonic waveguides. Plasmonic logic gates are half adder, full adder, half subtractor, full subtractor, and
Salma Ali Sadeq, Mohsen Hayati, Saba Khosravi   +2 more
doaj   +1 more source

Non-Volatile Reconfigurable Compact Photonic Logic Gates Based on Phase-Change Materials

Nanomaterials, 2023
Photonic logic gates have important applications in fast data processing and optical communication. This study aims to design a series of ultra-compact non-volatile and reprogrammable photonic logic gates based on the Sb2Se3 phase-change material.
Yuqing Zhang, Zheng Peng, Zhicheng Wang, Yilu Wu, Yuqi Hu, Jiagui Wu, Junbo Yang   +6 more
doaj   +1 more source

High extinction ratio thermo-optic based reconfigurable optical logic gates for programmable PICs

AIP Advances, 2022
In this paper, a new scheme is proposed to realize reconfigurable and multifunction optical logic gates (XOR, XNOR, NAND, and OR) using a Mach–Zehnder interferometer with a tunable thermo-optic phase shifter (TOPS). The reconfigurable optical logic gates
S. Hassan, D. Chack, L. Pavesi
doaj   +1 more source

Exceptional point protected robust on‐chip optical logic gates

Exploration, 2022
Optical logic gates are crucial components for information processing and communication using photons. Current optical logic gates typically rely on the light interference principle which requires an accurate manipulation of the dynamical phase of light,
Song‐Rui Yang, Xu‐Lin Zhang, Hong‐Bo Sun   +2 more
doaj   +1 more source