手征超介质光频段超宽带不对称传输特性研究
PDF下载 (397)王 川,汪会波,潘威康,康园园,董建峰 *.手征超介质光频段超宽带不对称传输特性研究[J].宁波大学学报(理工版),2018,31(5):51-55.DOI:
WANG Chuan,WANG Hui-bo,PAN Wei-kang,KANG Yuan-yuan,DONG Jian-feng *.Ultra-broad band asymmetric transmission based on chiral metamaterials in optical region[J].Journal of Ningbo University(Natural Science & Engineering Edition),2018,31(5):51-55.DOI:
| Title: | Ultra-broad band asymmetric transmission based on chiral metamaterials in optical region |
| 作者: | 王 川, 汪会波, 潘威康, 康园园, 董建峰 * |
| Author(s): | WANG Chuan, WANG Hui-bo, PAN Wei-kang, KANG Yuan-yuan, DONG Jian-feng * |
| 关键词: | 手征超介质; 不对称传输; 超宽带; 极化转换 |
| Keywords: | chiral metamaterial; asymmetric transmission; ultra-broad band; polarization conversion |
| 分类号: | TN29 |
| 文献标识码: | A |
| 摘要: | 提出了一种三层手征超介质结构, 可在光频段实现线极化波的超宽带类二极管效应的不对称传输, 同时能实现高效率的交叉极化转换. 数值模拟结果显示, 该结构实现的线极化波不对称传输参数最高为0.93, 而且在111~198THz频率范围内达到0.9以上, 同时交叉极化转换率在该频段上达到97%以上. 此外, 为更好地理解不对称传输和极化转换, 研究了极化旋转角、椭偏度和电场分布情况. 研究结果在极化转换器、光学二极管等光学器件中有潜在的应用价值. |
| Abstract: | In this paper, a genre of three-layered chiral metamaterial is proposed to realize ultra-broad band diode-like asymmetric transmission of linearly polarized waves and high-efficiency polarization conversion in the optical region. The chiral structure consists of three layers of sub-wavelength gratings. Numerical results reveal that the asymmetric transmission parameter enables to achieve the maximum of 0.93 and surpass 0.9 ranging from 111 to 198 THz for linearly polarized waves. Meanwhile, the polarization conversion ratio can exceed 97% in the same region. In addition, the rotation angle, ellipticity and electric field distributions are analyzed to better understand the asymmetric transmission and polarization conversion. The work in this study will offer a new opportunity in many optical applications of optical devices such as polarization transformers and diode-like devices. |
| 参考文献 /References: | [1] Zhou J F, Dong J F, Wang B N, et al. Negative refractive index due to chirality[J]. Physical Review B, 2009, 79 (12):121104. [2] 李杰, 董建峰. 光轴平行于界面的单轴手征介质中的负折射研究[J]. 物理学报, 2012, 61(11):214-220. [3] Decker M, Ruther M, Kriegler C E, et al. Strong optical activity from twisted-cross photonic metamaterials[J]. Optics Letters, 2009, 34(16):2501-2503. [4] Hannam K, Powell D A, Shadrivov I V, et al. Broadband chiral metamaterials with large optical activity[J]. Physical Review B, 2014, 89(12):125105. [5] Gorkunov M V, Ezhov A A, Artemov V V, et al. Extreme optical activity and circular dichroism of chiral metal hole arrays[J]. Applied Physics Letters, 2014, 104(22):221102. [6] Shao J, Li J, Wang Y H, et al. Enhanced circular dichroism based on the dual-chiral metamaterial in terahertz regime[J]. Chinese Physics B, 2016, 25(5):418-422. [7] Fedotov V A, Mladyonov P L, Prosvirnin S L, et al. Asymmetric propagation of electromagnetic waves through a planar chiral structure[J]. Physical Review Letters, 2006, 97(16):167401. [8] 刘道亚, 董建峰. 平面手征超介质不对称传输特性研究进展[J]. 材料导报, 2013, 27(19):117-121. [9] Mutlu M, Akosman A E, Serebryannikov A E, et al. Diode-like asymmetric transmission of linearly polarized waves using magnetoelectric coupling and electromagnetic wave tunneling[J]. Physical Review Letters, 2012, 108 (21):213905. [10] Huang C, Feng Y, Zhao J, et al. Asymmetric electro- magnetic wave transmission of linear polarization via polarization conversion through chiral metamaterial structures[J]. Physical Review B, 2012, 85(19):195131. [11] Liu D Y, Li M H, Zhai X M, et al. Enhanced asymmetric transmission due to Fabry-Perot-like cavity[J]. Optics Express, 2014, 22(10):11707-11712. [12] Song K, Liu Y H, Luo C R, et al. High-efficiency broadband and multiband cross-polarization conversion using chiral metamaterial[J]. Journal of Physics D Applied Physics, 2014, 47(50):505104. [13] Singh R, Plum E, Menzel C, et al. Terahertz metamaterial with asymmetric transmission[J]. Physical Review B, 2009, 80(15):153104. [14] Zhai X M, Zhou X, Yao L F, et al. Complementary chiral metamaterial with multi-band asymmetric transmission and mutual conversion[J]. Journal of Electromagnetic Waves and Application, 2016, 30(8):1005-1020. [15] Cheng Y Z, Gong R Z, Wu L. Ultra-broadband linear polarization conversion via diode-like asymmetric transmission with composite metamaterial for terahertz waves[J]. Plasmonics, 2016, 12(4):1113-1120. [16] Menzel C, Helgert C, Rockstuhl C, et al. Asymmetric transmission of linearly polarized light at optical metamaterials[J]. Physical Review Letters, 2010, 104(25): 253902. [17] Liu D Y, Luo X Y, Liu J J, et al. A planar chiral nanostructure with asymmetric transmission of linearly polarized wave and huge optical activity in near-infrared band[J]. Chinese Physics B, 2013, 22(12):256-261. [18] Li Z C, Chen S Q, Tang C C, et al. Broadband diodelike asymmetric transmission of linearly polarized light in ultrathin hybrid metamaterial[J]. Applied Physics Letters, 2014, 105(20):201103. [19] Xu Y Q, Shi Q C, Zhu Z, et al. Mutual conversion and asymmetric transmission of linearly polarized light in bilayered chiral metamaterial[J]. Optics Express, 2014, 22(21):25679-25688. [20] Liu D J, Xiao Z Y, Ma X L, et al. Asymmetric transmis- sion of chiral metamaterial slab with double L resonators [J]. Optics Communications, 2015, 338(3):359-365. [21] Wang H B, Zhou X, Tang D F, et al. Diode-like broad- band asymmetric transmission of linearly polarized waves based on Fabry-Perot-like resonators[J]. Optica Acta International Journal of Optics, 2017, 64(7):750-759. [22] Ordal M A, Long L L, Bell R J, et al. Ward Optical properties of the metals Al, Co, Cu, Au, Fe, Pb, Ni, Pd,Pt, Ag, Ti, and W in the infrared and far infrared[J]. Applied Optics, 1983, 22(7):1099-1119. [23] Menzel C, Rockstuhl C, Lederer F. An advanced Jones calculus for the classification of periodic metamaterials[J]. Physical Review A, 2010, 82(5):3464-3467. [24] Xiao Z Y, Liu D J, Ma X L, et al. Multi-band transmis- sions of chiral metamaterials based on Fabry-Perot like resonators[J]. Optics Express, 2015, 23(6):7053-7061. [25] Cong L Q, Cao W, Tian Z, et al. Manipulating polariza- tion states of terahertz radiation using metamaterials[J]. New Journal of Physics, 2012, 14(11):115013. |
| 备注/Memo: | 收稿日期: 2018－02－28. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金（61475079）. 第一作者: 王川（1992－）, 男, 山东聊城人, 在读硕士研究生, 主要研究方向: 手征超介质的新颖传输特性. E-mail: 280891536@qq.com *通信作者: 董建峰（1964－）, 男, 浙江余姚人, 教授, 主要研究方向: 负折射率材料和手征介质波导. E-mail: dongjianfeng@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
