Flexible control of transmitting terahertz beams based on multilayer encoding metasurfaces

Bie Xun; Jing Xufeng; Hong Zhi; Li Chenxia

首页> 外文期刊>Applied optics >Flexible control of transmitting terahertz beams based on multilayer encoding metasurfaces

【24h】

Flexible control of transmitting terahertz beams based on multilayer encoding metasurfaces

机译：基于多层编码元锉的多层编码传输的Terahertz光束灵活控制

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The concept of encoding metasurfaces makes a connection between the physical metamaterial particles and the digital code so the digital coding can be performed on the coding surface for signal processing to achieve unusual physical phenomena. Here, a complete 2 pi transmission phase with high efficiency at the target frequency can be manipulated by a multilayer metasurface structure. Different period sequence codes are designed to obtain the deflection angles, and then a new sequence is obtained through a four-bit system operation sequence according to the Fourier convolution principle. This study shows that Fourier calculation provides an efficient way to optimize the coding to achieve a pre-designed transmitted beam. The advantage of this method over previous solutions in generating an anomalous single transmission beam is its flexibility and continuous control of arbitrary directions, and it is possible to transmit a normally incident terahertz beam to an abnormal arbitrary direction with cross-polarization. This work opens up a new digital perspective on the new approach to metamaterials, predicting the possibility of combining electromagnetic wave operations with the convolution theorems in digital signal processing and the transcoding surface. (C) 2018 Optical Society of America

机译：编码元件的概念是在物理超材料粒子和数字代码之间的连接，因此可以在编码表面上执行数字编码以实现不寻常的物理现象。这里，可以通过多层元质面积操纵在目标频率处具有高效率的完整的2 PI传输阶段。不同的时段序列码被设计为获得偏转角，然后根据傅立叶卷积原理通过四位系统操作序列获得新序列。本研究表明，傅立叶计算提供了优化编码以实现预先设计的传输光束的有效方法。该方法在发电机单一传输梁的先前解决方案上的优点是其灵活性和对任意方向的连续控制，并且可以通过交叉极化将正常入射的太赫兹光束传送到异常任意方向。这项工作开辟了一种新的数字视角，对超材料的新方法进行了一种新的数字视角，预测了与数字信号处理中的卷积定理和转码表面相结合电磁波操作的可能性。（c）2018年光学学会

著录项

来源
《Applied optics》 |2018年第30期|共8页
作者
Bie Xun; Jing Xufeng; Hong Zhi; Li Chenxia;
展开▼
作者单位

China Jiliang Univ Inst Optoelect Technol Hangzhou Zhejiang Peoples R China;

China Jiliang Univ Inst Optoelect Technol Hangzhou Zhejiang Peoples R China;

China Jiliang Univ Ctr THz Res Hangzhou Zhejiang Peoples R China;

China Jiliang Univ Inst Optoelect Technol Hangzhou Zhejiang Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类应用;
关键词

Flexible control of transmitting terahertz beams based on multilayer encoding metasurfaces

摘要

著录项

相关主题

期刊订阅