基于二氧化硅薄膜夹层式亚波长金属光栅的宽波段太赫兹偏振分束器

张晔岚; 张昆; 孔伟金; 李采彧; 夏峰; 云茂金

doi:10.3788/IRLA201948.0520003

基于二氧化硅薄膜夹层式亚波长金属光栅的宽波段太赫兹偏振分束器

doi: 10.3788/IRLA201948.0520003

1.
青岛大学物理科学学院,山东青岛 266000;
2.
山东省光学工程学会,山东青岛 266000

基金项目:

国家自然科学基金（11274188）

详细信息

作者简介:
张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

中图分类号: O439

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

1.
College of Physics Science,Qingdao University,Qingdao 266000,China;
2.
Shandong Society for Optical Engineering,Qingdao 266000,China

摘要: 设计出一种结构新颖的宽波段太赫兹偏振分束器，这种偏振分束器由夹层式亚波长金属光栅制成。亚波长金属光栅偏振分束器可以将入射的任意自然光分成两束偏振状态垂直的线偏振光。其中，TE模反射而TM模透射。设计的偏振分束器在3.5~5.5 THz波段可以达到很高的衍射效率与消光比。但是，在光栅的实际制作过程中，加工技术的缺陷引起的误差大大影响了光栅的性能，比如衍射效率，消光比等。因此文中对一些结构参数进行了计算，从计算结果可以看出这种偏振分束器也有很好的工艺容差。当覆盖层厚度D1与底层介质厚度D3的变化范围分别为1~1.2 m和2.8~3 m时，T0TM大于96.9%，R0TE大于98.7%。Tc和Rc分别大于31 dB和33.4 dB。结果显示，设计的偏振分束器在2 THz的带宽10的大角度范围内，衍射效率高于90%，消光比大于20 dB。因此文中设计对于太赫兹调制器件的研究，以及太赫兹通信系统的集成都有很大的参考价值。
- 偏振分束器 /
- 太赫兹器件 /
- 亚波长光栅
Abstract: A broadband terahertz (THz) polarization beam splitter (PBS) was proposed. The PBS was based on subwavelength grating sandwiched between silica layers, which could split an arbitrarily polarized optical beam into two orthogonal, linearly polarized components, and then reflected the TE mode and transmit the TM mode. It was shown that THz PBS could efficiently operate from 3.5 THz to 5.5 THz, with high diffraction efficiencies and extinction ratios. In the process of PBS manufacture, there would be unavoidable deviations of the geometric parameters, which may affect its properties, i.e. the diffraction efficiencies and extinction ratios. Therefore, some structure parameters were calculated. Those values suggested that the designed PBS allows sufficient manufacture tolerances. When D1 ranged from 1 m to 1.2 m and thickness D3 ranged from 2.8 m to 3 m, the values of T0TM are always more than 96.9% and those of R0TE are more than 98.7%. And the values of Tc and Rc were respectively kept higher than 31 dB and 33.4 dB. These results show the PBS with a frequency bandwidth of 2 THz, a large angle range of 10, an extinction ratios over 20 dB and a diffraction efficiencies over 90%, is obtained. This work may inspire related studies and achieve some potential applications in THz manipulation system.
- polarization beam splitter /
- terahertz device /
- subwavelength grating

[1]	Yardimci N T, Cakmakyapan S, Hemmati S, et al. A high-power broadband terahertz source enabled by three-dimensional light confinement in a plasmonic nanocavity[J]. Scientific Reports, 2017, 7(1):4166.
[2]	Seifert T, Jaiswal S, Sajadi M, et al. Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kVcm-1 from a metallic spintronic emitter[J]. Applied Physics Letters, 2017, 110(25):355-362.
[3]	Lin Xufin, Zhou Fen, Zhang Jianbin, et al. High power wideband terahertz sources based on femtosecond facility[J]. Infrared and Laser Engineering, 2012, 41(1):116-118. (in Chinese)
[4]	Zhang X, Tian Z, Yue W, et al. Broadband terahertz wave deflection based on C-shape complex metamaterials with phase discontinuities[J]. Advanced Materials, 2013, 25(33):4567-4572.
[5]	Fan R H, Zhou Y, Ren X P, et al. Freely tunable broadband polarization rotator for terahertz waves[J]. Advanced Materials, 2015, 27(7):1201-1206.
[6]	Neu J, Krolla B, Paul O, et al. Metamaterial-based gradient index lens with strong focusing in the THz frequency range[J]. Optics Express, 2010, 19(5):27748-27757.
[7]	Scherger B, Jrdens C, Koch M. Variable-focus terahertz lens[J]. Optics Express, 2011, 19(5):4528-4535.
[8]	Fattinger C, Grischkowsky D, Exter M V, et al. Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors[J]. Journal of the Optical Society of America B, 1990, 7(10):2006-2015.
[9]	Luo Zhiwei, Gu Xinan, Zhu Weichen, et al. Optical properties of GaSe:S crystals in terahertz frequency range[J]. Optics and Precision Engineering, 2011, 19(2):354-359. (in Chinese)
[10]	Rutz F, Hasek T, Koch M, et al. Terahertz birefringence of liquid crystal polymers[J]. Applied Physics Letters, 2006, 89(22):221911.
[11]	Mo G Q, Li J S. Compact terahertz wave polarization beam splitter using photonic crystal[J]. Applied Optics, 2016, 55(25):7093-7097.
[12]	Hou Yu, Yang Huijing. Broadband terahertz polarization splitter based on orthogonal dual hollow core[J]. Infrared and Laser Engineering, 2016, 45(12):1225005. (in Chinese)
[13]	Wang W L, Rong X H. Design of terahertz wave polarizer based on thin film structure with micrometer[J]. Journal of Nanoengineering and Nanosystems, 2014, 230(2):81-84.
[14]	Berry C W, Jarrahi M. Broadband terahertz polarizing beam splitter on a polymer substrate[J]. Journal of Infrared and Millimeter Terahertz Waves, 2012, 33(2):127-130.
[15]	Du Mingdi, Jia Yaqiong, He Shuzhen. Impact of groove depth of subwavelength metal grating on THz spoof SPPs[J]. Infrared and Laser Engineering, 2017, 46(8):0825003. (in Chinese)
[16]	Okamoto K, Tsuruda K, Diebold S, et al. Terahertz sensor using photonic crystal cavity and resonant tunneling diodes[J]. Journal of Infrared and Millimeter Terahertz Waves, 2017, 38(9):1085-1097.
[17]	Pan Wu, Zeng Wei, Zhang Jun, et al. Design of multilayer stacked terahertz communication lens antenna[J]. Optics and Precision Engineering, 2017, 25(1):65-72. (in Chinese)
[18]	Arnold M, Hehl K. Embedded grating in a multilayer system[J]. J Mod Opt, 2007, 40(12):2423-2432.
[19]	Awasthi S K, Srivastava A, Malaviya U, et al. Wide-angle, broadband plate polarizer in terahertz frequency region[J]. Solid State Commun, 2008, 146(11):506-509.
[20]	Knop K. Rigorous diffraction theory for transmission phase gratings with deep rectangular grooves[J]. J Opt Soc Am, 1978, 68(9):1206-1210.
[21]	Hartke B. Global geometry optimization of clusters using genetic algorithms[J]. Iran J Public Health, 1993, 97(39):9973-9976.
[22]	Zhou L b, Liu W. Broadband polarizing beam splitter with an embedded metal-wire nanograting[J]. Opt Express, 2005, 30(12):1434-1436.

[1]	苏英蔚, 田震. 基于相位梯度光栅介电超表面的高效太赫兹波异常反射器 . 红外与激光工程, 2023, 52(2): 20220304-1-20220304-7. doi: 10.3788/IRLA20220304
[2]	封春节, 朱晓波, 吴杨慧, 傅晨, 常惠玉, 岳玉涛, 顾文华. 静电喷印技术在太赫兹超表面制备中的应用 . 红外与激光工程, 2022, 51(2): 20210878-1-20210878-6. doi: 10.3788/IRLA20210878
[3]	邓人隽, 史坦, 李向平, 邓子岚. 基于全局拓扑优化深度学习模型的超构光栅分束器 . 红外与激光工程, 2021, 50(5): 20211028-1-20211028-4. doi: 10.3788/IRLA20211028
[4]	张鹏, 曹乾涛, 董航荣, 赵鑫, 孙佳文, 吴斌, 刘红元. 大面元太赫兹热释电探测器 . 红外与激光工程, 2020, 49(5): 20190338-20190338-6. doi: 10.3788/IRLA20190338
[5]	贺敬文, 董涛, 张岩. 太赫兹波前调制超表面器件研究进展 . 红外与激光工程, 2020, 49(9): 20201033-1-20201033-11. doi: 10.3788/IRLA20201033
[6]	杨双月, 谷一英, 胡晶晶, 李晓洲, 赵明山, 韩秀友, 武震林. 基于亚波长超窄带滤波器设计 . 红外与激光工程, 2020, 49(S1): 20200134-20200134. doi: 10.3788/IRLA20200134
[7]	陈瑞, 柳夏, 王虹, 石伟怡, 刘伟男, 江绍基, 董建文. 从亚波长光栅到超构光栅：原理、设计及应用 . 红外与激光工程, 2020, 49(9): 20201039-1-20201039-22. doi: 10.3788/IRLA20201039
[8]	周国尊, 田维坚. 使用亚波长光栅器件产生圆柱型矢量光束 . 红外与激光工程, 2019, 48(3): 320004-0302004(9). doi: 10.3788/IRLA201948.0302004
[9]	邓学松, 方明, 吴博, 黄志祥. 倒梯形双层金属光栅式偏振分束器 . 红外与激光工程, 2019, 48(3): 320002-0320002(7). doi: 10.3788/IRLA201948.0320002
[10]	杜鸣笛, 贾雅琼, 何淑珍. 亚波长金属光栅的凹槽深度对太赫兹伪表面等离子体影响 . 红外与激光工程, 2017, 46(8): 825003-0825003(5). doi: 10.3788/IRLA201746.0825003
[11]	严世博, 娄淑琴, 赵彤彤, 张俊楠. 金属修饰的微结构光纤偏振分束器 . 红外与激光工程, 2017, 46(5): 522001-0522001(5). doi: 10.3788/IRLA201746.0522001
[12]	季淑英, 孔伟金, 李娜, 车卫康, 司维, 徐志恒. 800 nm亚波长夹层式金属偏振分束光栅 . 红外与激光工程, 2017, 46(8): 820002-0820002(6). doi: 10.3788/IRLA201746.0820002
[13]	侯宇, 杨会静. 垂直双空芯宽带太赫兹偏振分离器 . 红外与激光工程, 2016, 45(12): 1225005-1225005(5). doi: 10.3788/IRLA201645.1225005
[14]	武阿妮, 李晨毓, 周庆莉, 刘建丰, 孙会娟, 杨舟, 张存林. 温度对太赫兹亚波长金属结构共振特性的影响 . 红外与激光工程, 2015, 44(6): 1832-1835.
[15]	冷雁冰, 董连和, 孙艳军. 1×11亚波长结构Dammann光栅的研制 . 红外与激光工程, 2014, 43(3): 812-817.
[16]	李晨龙, 冯丽爽, 周震, 隋佳伟, 殷博昊. 基于亚波长金属孔阵列的光控太赫兹强度调制器 . 红外与激光工程, 2014, 43(12): 4013-4016.
[17]	崔海林, 焦磊, 李丽娟, 何敬锁. 基于太赫兹亚波长超材料的偏振不敏感调制器的理论研究 . 红外与激光工程, 2014, 43(11): 3849-3853.
[18]	杨亮, 李艳秋, 马旭, 盛乃. 嵌入式光栅多层结构锥形衍射的严格耦合波理论研究 . 红外与激光工程, 2014, 43(6): 1899-1904.
[19]	冯睿娟, 娄淑琴, 鹿文亮, 王鑫. 超短双芯光子晶体光纤偏光分束器 . 红外与激光工程, 2014, 43(2): 506-510.
[20]	郭士亮, 黄惠, 童凯, 王志斌, 胡春海, 李志全. 高双折射双芯光子晶体光纤偏振分束器 . 红外与激光工程, 2014, 43(6): 1863-1868.

点击查看大图

计量

文章访问数: 464
HTML全文浏览量: 83
PDF下载量: 50
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

基于二氧化硅薄膜夹层式亚波长金属光栅的宽波段太赫兹偏振分束器

doi: 10.3788/IRLA201948.0520003

作者简介:
张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

计量

基于二氧化硅薄膜夹层式亚波长金属光栅的宽波段太赫兹偏振分束器

doi: 10.3788/IRLA201948.0520003

1. 青岛大学物理科学学院,山东青岛 266000;

2. 山东省光学工程学会,山东青岛 266000

作者简介:
张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

English Abstract

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

1. College of Physics Science,Qingdao University,Qingdao 266000,China;

2. Shandong Society for Optical Engineering,Qingdao 266000,China

全文HTML

目录

留言板

基于二氧化硅薄膜夹层式亚波长金属光栅的宽波段太赫兹偏振分束器

doi: 10.3788/IRLA201948.0520003

作者简介: 张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

计量

出版历程

基于二氧化硅薄膜夹层式亚波长金属光栅的宽波段太赫兹偏振分束器

doi: 10.3788/IRLA201948.0520003

1. 青岛大学 物理科学学院,山东 青岛 266000; 2. 山东省光学工程学会,山东 青岛 266000

作者简介: 张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

English Abstract

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

1. College of Physics Science,Qingdao University,Qingdao 266000,China; 2. Shandong Society for Optical Engineering,Qingdao 266000,China

全文HTML

目录

作者简介:
张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

1. 青岛大学物理科学学院,山东青岛 266000;

2. 山东省光学工程学会,山东青岛 266000

作者简介:
张晔岚(1992-),女,硕士生,主要从事太赫兹波段金属光栅方面的研究。Email:726487797@qq.com

1. College of Physics Science,Qingdao University,Qingdao 266000,China;

2. Shandong Society for Optical Engineering,Qingdao 266000,China