Analog signal metasurface processor supporting mathematical operator reconfiguration

被引：4
|
作者：
Yang, Huiping [1 ]
Chen, Yutai [2 ]
Wu, Yilu [1 ]
Hu, Yuqi [1 ]
Yang, Junbo [2 ]
Wu, Jiagui [3 ]
机构：
[1] Southwest Univ, Coll Artificial Intelligence, Chongqing 400715, Peoples R China
[2] Natl Univ Def Technol, Ctr Mat Sci, Changsha 410073, Peoples R China
[3] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
来源：
OPTICS LETTERS | 2023年 / 48卷 / 21期
基金：
中国国家自然科学基金;
关键词：
Compendex;
D O I：
10.1364/OL.498519
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Electromagnetic wave analog computing is an effective method to overcome the bottleneck of electronic computing, which has attracted the attention of scientists. However, many spatial analog signal processing systems based on electromagnetic waves can only execute one unique mathematical operator and cannot provide multiple operators for users to choose arbitrarily. In order to enhance the function of the current spatial analog computing system, we design a coding structure with amplitude-phase decoupling modulation to realize the analog signal processor that supports the switching of mathematical operators and demonstrate the precise switching from the first-order spatial differential operator to the first-order spatial integral operator. Our design idea can be used as a paradigm for designing small reconfigurable analog computing systems, paving the way for the construction of high-speed, multifunctional, and universal signal processing systems. This idea can be extended to any other range of waves. (c) 2023 Optica Publishing Group
引用
收藏
页码：5451 / 5454
页数：4
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