{"title":"Parallel multiplexing optical spatial differentiation based on a superposed complex amplitude filter","authors":"Xiangwei Wang, Ding Yan, Yizhe Chen, Tong Qi, Wei Gao","doi":"10.1016/j.optlaseng.2024.108669","DOIUrl":null,"url":null,"abstract":"<div><div>Optical differentiation has the advantages of ultrahigh speed and low power consumption over digital electronic computing. Various methods for single and switchable-order differential operations have been extensively studied and applied in fields such as image processing and optical analog computing. Here, we report a parallel multiplexing scheme of optical spatial differentiations via a superposition of multiple complex amplitude filters. The isotropic and anisotropic first- to fourth-order differentiation multiplexing, as well as various types of differentiation multiplexing are demonstrated both theoretically and experimentally. Multifunctional differential operations can be generated simultaneously, realizing the extraction of multiple feature information about amplitude and phase objects. This proof-of-principle work provides an approach for multiplexing optical spatial differentiation and a promising possibility for efficient information processing.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"184 ","pages":"Article 108669"},"PeriodicalIF":3.5000,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Lasers in Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S014381662400647X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Optical differentiation has the advantages of ultrahigh speed and low power consumption over digital electronic computing. Various methods for single and switchable-order differential operations have been extensively studied and applied in fields such as image processing and optical analog computing. Here, we report a parallel multiplexing scheme of optical spatial differentiations via a superposition of multiple complex amplitude filters. The isotropic and anisotropic first- to fourth-order differentiation multiplexing, as well as various types of differentiation multiplexing are demonstrated both theoretically and experimentally. Multifunctional differential operations can be generated simultaneously, realizing the extraction of multiple feature information about amplitude and phase objects. This proof-of-principle work provides an approach for multiplexing optical spatial differentiation and a promising possibility for efficient information processing.
期刊介绍:
Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods.
Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following:
-Optical Metrology-
Optical Methods for 3D visualization and virtual engineering-
Optical Techniques for Microsystems-
Imaging, Microscopy and Adaptive Optics-
Computational Imaging-
Laser methods in manufacturing-
Integrated optical and photonic sensors-
Optics and Photonics in Life Science-
Hyperspectral and spectroscopic methods-
Infrared and Terahertz techniques