基于场变换理论的大角度涡旋电磁波生成方法

冯加林; 施宏宇; 王远; 张安学; 徐卓

doi:10.7498/aps.69.20200365

摘要

场变换是一种与入射角度无关的新型电磁变换方法, 可对电磁波极化和阻抗进行调控. 本文提出了一种基于场变换理论的大角度入射涡旋电磁波产生方法. 基于该方法设计了一种用于涡旋电磁波生成的人工媒质, 并通过对其仿真验证了所提出的方法. 设计的人工媒质为多层环形结构, 可以透射生成2阶涡旋电磁波, 并且具有较好的入射角度稳定性, 在60°斜入射时仍能产生涡旋电磁波.

关键词:

The Field transformation (FT) is a novel theory for controlling the polarization and impedance of electromagnetic waves, which is independent on the angle of incidence. Thus, the FT method is superior for wide-angle devices design. In this paper, we propose a wide-angle method for generating vortex beam based on the FT theory. According to this method, an artificial media for vortex beam generation is designed and simulated, which demonstrates the proposed method. The designed artificial media is a multi-layered structure, which can generate vortex beam of order 2 with an incident angle stability up to 60°.

Keywords:

作者及机构信息

1.
西安交通大学, 多功能材料与结构教育部重点实验室, 西安　710049

2.
西安交通大学, 电子与信息学部, 西安　710049

3.
西安交通大学, 电子陶瓷与器件教育部重点实验室, 西安　710049

通信作者: 施宏宇, honyo.shi1987@gmail.com

Authors and contacts

1.
Key Laboratory for Multifunctional Materials and Structures, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China

2.
Faculty of Electronics and Information, Xi’an Jiaotong University, Xi’an 710049, China

3.
Key Laboratory for Electronic Materials Research Laboratory, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China

Corresponding author: Shi Hong-Yu, honyo.shi1987@gmail.com

文章全文 : translate this paragraph

参考文献

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[8]	Oemrawsingh S S R, Houwelingen J A W, Eliel E R, Woerdman J P, Verstegen E J K, Kloosterboer J G 2004 Appl. Opt. 43 688 Google Scholar
[9]	Beijersbergen M W, Coerwinkel R P C, Kristensen M, Woerdman J P 1994 Opt. Commun. 112 321 Google Scholar
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施引文献

图 1 场变换示意图

Fig. 1. Schematic diagram of the FT medium.

下载: 全尺寸图片幻灯片

图 2 人工双折射材料: $xyz$轴绕y轴旋转45°变成${x'}y{z'}$, 入射波在$xy$平面内, $\theta $为入射角, ${k_0}$是入射波的波数

Fig. 2. Artificial birefringence medium: The $xyz$ coordinate is twisted along the y -axis by 45° to the ${x'}y{z'}$ coordinate. The incident plane is x-y plane, $\theta $ is the incident angle, ${k_0}$ is the wave vector of the incident wave.

下载: 全尺寸图片幻灯片

图 3 Pancharatnam-Berry(几何)相位, 入射波沿y方向照射到单元上, 单元绕y轴旋转$\alpha $, 带来$2\alpha $的相位变化

Fig. 3. Pancharatnam-Berry phase: When the EM wave incident on the unit along y direction, and the unit rotates $\alpha $ around the y axis, the phase changed $2\alpha $.

下载: 全尺寸图片幻灯片

图 4 单元模型

Fig. 4. The model of unit cell.

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图 5 (a) ${J_{xx}}$和${J_{yy}}$的幅度 ; (b) ${J_{xx}}$和${J_{yy}}$的相位

Fig. 5. (a) The amplitude of ${J_{xx}}$ and ${J_{yy}}$; (b) the phase of ${J_{xx}}$ and ${J_{yy}}$.

下载: 全尺寸图片幻灯片

图 6 ${J_{xy}}$和${J_{yx}}$的幅度

Fig. 6. The amplitude of ${J_{xy}}$ and ${J_{yx}}$.

下载: 全尺寸图片幻灯片

图 7 (a)旋转所形成的介质圆环的主视图, 由100个圆环组成每个圆环的半径为4 mm; (b)介质圆环的侧视图

Fig. 7. (a) Main view of dielectric rings, it’s consists of 100 rings with radius of 4 mm and thickness of dielectric rings is 30 mm; (b) side view of dielectric rings.

下载: 全尺寸图片幻灯片

图 8 (a)垂直入射的透射波; (b)介质圆环周围空间的电场分布; (c)13 GHz时右旋圆极化波的幅度; (d)13 GHz时右旋圆极化波的相位

Fig. 8. (a) The transmission wave while incident angle is 0°; (b) E-field distribution around dielectric rings; (c) amplitude of RCP wave at 13 GHz ; (d) phase of RCP wave at 13 GHz.

下载: 全尺寸图片幻灯片

图 9 (a) 20°斜入射时的透射波; (b)介质圆环周围空间的电场分布; (c) 20°斜入射时13 GHz的右旋圆极化波的幅度; (c) 20°斜入射时在13 GHz的右旋圆极化波的相位

Fig. 9. (a) The transmission wave while incident angle is 20°; (b) E-field distribution around dielectric rings; (c) amplitude of RCP wave at 20° oblique incidence; (d) phase of RCP wave at 20° oblique incidence.

下载: 全尺寸图片幻灯片

图 10 (a) 40°斜入射时的透射波; (b)介质圆环周围空间的电场分布; (c) 40°斜入射时13 GHz的右旋圆极化波的幅度; (d) 40°斜入射时13 GHz的右旋圆极化波的相位

Fig. 10. (a) The transmission wave while incident angle is 40°; (b) E-field distribution around dielectric rings; (c) amplitude of RCP wave at 40° oblique incidence; (d) phase of RCP wave at 40° oblique incidence.

下载: 全尺寸图片幻灯片

图 11 (a) 50°斜入射时的透射波; (b)介质圆环周围空间的电场分布; (c) 50°斜入射时13 GHz的右旋圆极化波的幅度; (d) 50°斜入射时在13 GHz的右旋圆极化波的相位

Fig. 11. (a) The transmission wave while incident angle is 50°; (b) E-field distribution around dielectric rings; (c) amplitude of RCP wave at 50° oblique incidence; (d) phase of RCP wave at 50° oblique incidence.

下载: 全尺寸图片幻灯片

图 12 (a) 60°斜入射时的透射波; (b) 60°入射时介质圆环周围的电场分布; (c) 60°斜入射时13 GHz的右旋圆极化波的幅度; (d) 60°斜入射时13 GHz的右旋圆极化波的相位

Fig. 12. (a) The transmission wave while incident angle is 60°; (b) E-field distribution around dielectric rings at 60° oblique incidence; (c) amplitude of RCP wave at 60° oblique incidence; (d) phase of RCP wave at 60° oblique incidence.

下载: 全尺寸图片幻灯片

表 1 垂直入射时不同频点的右旋分量的最大值

Table 1. Maximum values of RCP at different frequencies when normal incidence.

频率/GHz 右旋圆极化分量最大值/dBi

11 14.70
12 15.80
13 16.90
14 17.30
15 17.50

下载: 导出CSV

表 2 20°斜入射时不同频点的右旋分量的最大值

Table 2. Maximum values of RCP at different frequencies when incident angle is 20°.

频率/GHz 右旋圆极化分量最大值/dBi

11 15.30
12 16.10
13 17.20
14 17.70
15 17.40

下载: 导出CSV

表 3 40°斜入射时不同频点右旋分量的最大值

Table 3. Maximum values of RCP at different frequencies when incident angle is 40°.

频率/GHz 右旋圆极化分量最大值/dBi

11 16.0
12 16.7
13 17.4
14 18.6
15 18.5

下载: 导出CSV

表 4 50°斜入射时不同频点的左旋和右旋分量的最大值

Table 4. Maximum values of RCP at different frequencies when incident angle is 50°.

频率/GHz 右旋圆极化分量最大值/dBi

11 16.8
12 17.2
13 17.6
14 18.6
15 19.6

下载: 导出CSV

表 5 60°斜入射时不同频点的左旋和右旋分量的最大值

Table 5. Maximum values of RCP at different frequencies when incident angle is 60°.

频率/GHz 右旋圆极化分量最大值/dBi

11 16.1
12 16.9
13 17.9
14 18.5
15 19.6

下载: 导出CSV

[1]	Bliokh K Y, Bekshaev A Y, Nori F 2013 New J. Phys. 15 33026 Google Scholar
[2]	Menglin C, Li J, Wei S 2018 Appl. Sci. 8 362 Google Scholar
[3]	Wang J, Yang J Y, Fazal I M 2012 Nat. Photonics 6 488 Google Scholar
[4]	苏志锟, 王发强, 路轶群, 金锐博, 梁瑞生, 刘颂豪 2008 物理学报 57 3016 Google Scholar Su Z K, Wang F Q, Lu Y Q, Jin R B, Liang R B, Liu S H 2008 Acta Phys. Sin. 57 3016 Google Scholar
[5]	Lemaitre-Auger P, Abielmona S, Caloz C 2013 IEEE Trans. Antennas Propag. 61 1838 Google Scholar
[6]	David G 2003 Nature 424 810 Google Scholar
[7]	刘义东, 高春清, 高明伟, 李丰 2007 物理学报 56 854 Google Scholar Liu Y D, Gao C Q, Gao M W, Li F 2007 Acta Phys. Sin. 56 854 Google Scholar
[8]	Oemrawsingh S S R, Houwelingen J A W, Eliel E R, Woerdman J P, Verstegen E J K, Kloosterboer J G 2004 Appl. Opt. 43 688 Google Scholar
[9]	Beijersbergen M W, Coerwinkel R P C, Kristensen M, Woerdman J P 1994 Opt. Commun. 112 321 Google Scholar
[10]	Turnbull G A, Robertson D A, Smith G M, Allen L, Padgett M J 1996 Opt. Commun. 127 183 Google Scholar
[11]	Marrucci L, Manzo C, Paparo D 2006 Phys. Rev. Lett. 96 163905 Google Scholar
[12]	Paterson C, Smith R 1996 Opt. Commun. 124 121 Google Scholar
[13]	Mohammadi S M, Daldorff L K S, Bergman J E S, Karlsson R L, Thide B, Forozesh K 2010 IEEE Trans. Antennas Propag. 2 565
[14]	Genevet P, Y u, N, Aieta F, Lin J, Kats M A, Blanchard R 2012 Appl. Phys. Lett. 100 1
[15]	Pu M, Li X, Ma X, Wang Y, Zhao Z, Wang C 2015 Sci. Adv. 1 e1500396 Google Scholar
[16]	Huang L, Chen X, Holger Mühlenbernd, Li G, Zhang S 2012 Nano Lett. 12 5750 Google Scholar
[17]	Arbabi A, Horie Y, Bagheri M 2015 Nat. Nanotechnol. 10 937 Google Scholar
[18]	Yue F, Wen D, Xin J, Gerardot B D, Li J, Chen X 2016 ACS Photonics acsphotonics 6 b00392
[19]	Yang H, Niu J, Zhang K, Ding X, Wu Q 2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT) Harbin, China, August 20–22, 2016 p552
[20]	Tamburini F, Mari E, Thideì Bo, Barbieri C, Romanato F 2011 Appl. Phys. Lett. 99 204102 Google Scholar
[21]	Vaishnavi V, Priya V G, Sharmila Devi A, Manoj Kumar M, Venkatesh S, Sundaram G A 2014 International Conference on Communication and Signal Processing Melmaruvathur, India, April 3–5, 2014 p1414
[22]	Liu F, Liang Z, Li J 2013 Phys. Rev. Lett. 111 033901 Google Scholar
[23]	Liu F, Li J S 2015 Phys. Rev. Lett. 114 103902 Google Scholar
[24]	Zhao J M, Zhang L H, Li J S, Feng Y J, Dyke A, Haq S, Hao Y 2015 Sci. Rep. 5 17532 Google Scholar
[25]	Shi H Y, Hao Y 2013 Opt. Express 26 20132
[26]	Shi H, Giddens H, Hao Y 2019 IET Microwaves Antennas Propag. 13 1450 Google Scholar
[27]	Shi H Y, Giddens H, Hao Y 2017 IEEE Antennas Wirel. Propag. Lett. 16 2869
[28]	Chen M L N, Jiang L J, Sha W E I 2019 IEEE Antennas Wirel. Propag. Lett. 18 477 Google Scholar
[29]	Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F, Smith D R 2016 Science 314 977
[30]	Born M, Wolf E, Bhatia A B 2002 Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light 7th (expanded) (Cambridge: Cambridge University Press) pp220–225
[31]	Chen M L N, Jiang L J, Sha W E I 2016 J. Appl. Phys. 119 064506 Google Scholar
[32]	Kang M, Chen J, Wang X, Wang H 2012 J.Opt. Soc. Am. B: Opt. Phys. 29 572 Google Scholar

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基于场变换理论的大角度涡旋电磁波生成方法