一种实现中红外非对称传输的手征超表面设计

肖桐; 田昌会; 王军; 孟真; 范琦; 高志强; 谢晓伟; 田晓霞

一种实现中红外非对称传输的手征超表面设计

空军工程大学基础部，陕西西安 710051

基金项目:

陕西省自然科学基础研究计划资助项目 2019JZ-40

详细信息

作者简介:
肖桐（1993-），男，回族，宁夏固原人，硕士研究生，主要从事红外辐射特性与探测技术研究。E-mail: xt415574621@163.com

通讯作者:
田昌会（1963-），男，陕西合阳人，教授，博士，主要从事红外辐射特性与探测技术研究。E-mail：tchtyb001@163.com

中图分类号: TN213
计量
- 文章访问数: 498
- HTML全文浏览量: 177
- PDF下载量: 39
- 被引次数: 0
出版历程
- 收稿日期: 2020-07-08
- 修回日期: 2020-07-28
- 刊出日期: 2021-04-02

Chiral Metasurface Designed for the Asymmetric Transmission of the Mid-infrared Band

Department of Basic Science, Air Force Engineering University, Xi'an 710051, China

摘要

摘要: 为了研究手征超表面在中红外波段的非对称传输特性，设计了一种基于L型结构的手征超表面单元。利用CST电磁软件进行仿真分析，结果表明在68.92~88.68 THz范围内非对称传输参数大于0.8，在73.25 THz处非对称传输参数达到极值为0.88，由此可知该结构在中红外波段具有良好的非对称传输特性；通过分析表面电流分布和透射场相位分布，阐明了该手征超表面的极化选择性反射和交叉极化透射机理；对单元结构手征强弱和非对称传输特性的关系进行了讨论，并研究了介质层、金属层的厚度以及电磁波入射角度对非对称传输特性的影响。
- 非对称传输 /
- 手征超表面 /
- 线偏振 /
- 中红外
Abstract: To study the asymmetric transmission characteristics of the chiral metasurface in the mid-infrared band, a chiral metasurface unit based on an L-shaped structure isdesigned.A simulation analysis using CST electromagnetic software reveals that the asymmetric transmission parameter is greater than 0.8 in the range of 68.92-88.68 THz and reaches the extreme value of 0.88 at 73.25 THz. It can be observedthat the structure exhibits good performance in terms of asymmetric transmission in the mid-infrared band.The polarization selective reflection and cross-polarization transmission mechanism of the chiral metasurface are clarified by analyzing the surface current distribution and phase distribution of the transmission field.The relationship between the chiral strength of the unit structure and the asymmetric transmission characteristics is also discussed.The influence of the thickness of the dielectric and metal layers and the incident angle of the electromagnetic wave on the asymmetric transmission characteristics is examined.
- asymmetric transmission /
- chiral hypersurface /
- linear polarization /
- mid-infrared

HTML全文

图 1 单元结构示意图

Figure 1. Schematic diagram of unit structure

下载: 全尺寸图片幻灯片

图 2 三维结构形成过程

Figure 2. The formation process of the 3D structure

下载: 全尺寸图片幻灯片

图 3 正向入射透射系数

Figure 3. The transmission coefficient of forward incidence

下载: 全尺寸图片幻灯片

图 4 非对称传输参数

Figure 4. Asymmetric transmission parameters

下载: 全尺寸图片幻灯片

图 5 75.25 THz处表面电流分布

Figure 5. Surface current distribution at 75.25 THz

下载: 全尺寸图片幻灯片

图 6 仅正面L型结构y极化波正向垂直入射的反射系数

Figure 6. The reflection and transmission coefficient of a single L structure with y polarized wave incident vertically

下载: 全尺寸图片幻灯片

图 7 入射场和透射场的电场分布

Figure 7. Electric field distribution of incident field and transmission field

下载: 全尺寸图片幻灯片

图 8 u-v坐标系的建立

Figure 8. Establishment of u-v coordinate system

下载: 全尺寸图片幻灯片

图 9 u、v极化入射时交叉极化透射相位

Figure 9. Cross polarization transmission phase when u and v polarization incident

下载: 全尺寸图片幻灯片

图 10 结构参数和入射角与非对称传输参数的关系：(a)短臂L2变化；(b)介质层厚度变化；(c)金属层厚度变化；(d)入射角变化

Figure 10. Influence of structural parameters on transmission characteristics: (a) Changes in short arm L2;(b) Changes in the thickness of the dielectric layer; (c) Changes in the thickness of the metal layer; (d) Change in incidence Angle

下载: 全尺寸图片幻灯片

参考文献(17)

[1]	牛继勇, 李范鸣. 空间目标红外偏振特性分析[J]. 红外技术, 2015, 37(3): 200-203. http://hwjs.nvir.cn/article/id/hwjs201503006 NIU Jiyong, LI Fanming. Analysis of infrared polarization characteristics of space target[J]. Infrared Technology, 2015, 37(3): 200-203. http://hwjs.nvir.cn/article/id/hwjs201503006
[2]	金柯, 刘永强, 韩俊, 等. 基于超材料的中波红外宽带偏振转换研究[J]. 物理学报, 2017, 66(13): 81-85. https://www.cnki.com.cn/Article/CJFDTOTAL-WLXB201713010.htm JIN Ke, LIU Yongqiang, HAN Jun, et al. Broadband polarization conversion in mid-wave infrared based on metamaterials[J]. Acta PhysicaSinica, 2017, 66(13): 81-85. https://www.cnki.com.cn/Article/CJFDTOTAL-WLXB201713010.htm
[3]	余福源. 手性和各向异性的超材料的偏振特性及应用研究[D]. 合肥: 合肥工业大学, 2018. YU Fuyuan. Polarization properties and applications of chiral and anisotropic metamaterials[D]. Hefei: Hefei University of Technology, 2018.
[4]	黄慈. 人工手征特异介质的电磁性质研究[D]. 南京: 南京大学, 2012. HUANG Ci. Research on Electromagnetic Properties of Artificial Chiral Specific Media[D]. Nanjing: Nanjing University, 2012.
[5]	张雅雯, 亓丽梅, 刘畅, 等. 超材料非对称传输器件研究[J]. 量子电子学报, 2018, 35(4): 385-394. https://www.cnki.com.cn/Article/CJFDTOTAL-LDXU201804001.htm ZHANG Yawen, QI Limei, LIU Chang, et al. Research on Metamaterial Asymmetric Transmission Device[J]. Chinese Journal of Quantum Electronics, 2018, 35(4): 385-394. https://www.cnki.com.cn/Article/CJFDTOTAL-LDXU201804001.htm
[6]	LI Z, Mutlu M, Ozbay E. Chiral metamaterials: from optical activity and negative refractive index to asymmetric transmission[J]. Journal of Optics, 2013, 15(2): 023001-023001. doi: 10.1088/2040-8978/15/2/023001
[7]	董建峰, 徐超, 徐键. 平面手征超常介质研究进展[J]. 材料导报, 2009, 23(1): 84-89. doi: 10.3321/j.issn:1005-023X.2009.01.020 DONG Jianfeng, XU Chao, XU Jian. Research Progress of Planar Chiral Metamaterials[J]. Materials Review, 2009, 23(1): 84-89. doi: 10.3321/j.issn:1005-023X.2009.01.020
[8]	Fedotov V A, Mladyonov P L, Prosvirnin S L, et al. Asymmetric prop- agation of electromagnetic waves through a planar chiral structure[J]. Phys Rev Lett. , 2006, 97(16): 167401. doi: 10.1103/PhysRevLett.97.167401
[9]	Menzel C, Helgert C, Rockstuhl C, et al. Asymmetric transmission of linearly polarized light at optical metamaterials[J]. Phys Rev Lett. 2010, 104(25): 253902. doi: 10.1103/PhysRevLett.104.253902
[10]	ZHAO R, CHEN H Y, ZHANG L, et al. Design and implementation of high efficiency and broadband transmission-type polarization converter based on diagonal split-ring resonator[J]. Progress in Electromagnetics Research, 2018, 161: 1-10. doi: 10.2528/PIER17110604
[11]	赵铭茜, 程用志, 陈浩然, 等. 太赫兹波段双频带手征性超表面的设计[J]. 光学学报, 2019, 39(4): 333-341. https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201904039.htm ZHAO Mingxi, CHENG Yongzhi, CHEN Haoran, et al. Design of dual-band chiral metasurface in terahertz band[J]. Acta Optica Sinica, 2019, 39(4): 333-341. https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201904039.htm
[12]	陈琦, 潘武, 王泶尹, 等. 太赫兹宽带非对称传输器件的研究[J]. 半导体光电, 2019, 40(4): 472-475. https://www.cnki.com.cn/Article/CJFDTOTAL-BDTG201904005.htm CHEN Qi, PAN Wu, WANG Cunyin, et al. Research on terahertz broadband asymmetric transmission devices[J]. Semiconductor Optoelectronics, 2019, 40(4): 472-475. https://www.cnki.com.cn/Article/CJFDTOTAL-BDTG201904005.htm
[13]	Menzel C, Helgert C, Rockstuhl C, et al. Asymmetric transmission of linearly polarized light at optical metamaterials[J]. Phys Rev Lett. , 2010, 104(25): 253902. doi: 10.1103/PhysRevLett.104.253902
[14]	LIU D J, XIAO Z Y, MA X L, et al. Asymmetric transmission of linearly and circularly polarized waves in metamaterial due to symmetry-breaking[J]. Applied Physics Express, 2015, 8(5): 052001.1-052001.4. http://adsabs.harvard.edu/abs/2015APExp...8e2001L
[15]	TANG D F, WANG C, PAN W K, et al. Broad dual-band asymmetric transmission of circular polarized waves in near-infrared communication band[J]. Opt Express, 2017, 25(10): 11329-39. doi: 10.1364/OE.25.011329
[16]	王斌科, 王可欣, 田昌会, 等. 一种新型红外频率选择表面[J]. 红外技术, 2019, 41(1): 22-26. http://hwjs.nvir.cn/article/id/hwjs201901004 WANG Binke, WANG Kexin, TIAN Changhui, et al. A novel infrared frequency selective surface[J]. Infrared Technology, 2019, 41(1): 22-26. http://hwjs.nvir.cn/article/id/hwjs201901004
[17]	孙靓. 复合人工电磁材料实现电磁波非对称传输性能的研究[D]. 南京: 南京大学, 2015. SUN Liang. Research on Asymmetric Transmission of Electromagnetic Wave by Composite Artificial Electromagnetic Materials[D]. Nanjing: Nanjing University, 2015.