Tunable nonreciprocal terahertz transmission and enhancement based on metal/magneto-optic plasmonic lens

被引：70
作者：
Fan, Fei [1 ]
Chen, Sai [1 ]
Wang, Xiang-Hui [1 ]
Chang, Sheng-Jiang [1 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Key Lab Opt Informat Sci & Technol, Minist Educ, Tianjin 300071, Peoples R China
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 07期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
All Open Access; Gold;
D O I：
10.1364/OE.21.008614
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A tunable metal/magneto-optic plasmonic lens for terahertz isolator is demonstrated. Based on the magneto-optical effect of the semiconductor material and non-symmetrical structure, this plasmonic lens has not only the focusing feature but also nonreciprocal transmission property. Moreover, a transmission enhancement through this device greatly larger than that of the ordinary metallic slit arrays is contributed by the extraordinary optical transmission effect of the magneto surface plasmon polaritons. The results show that the proposed isolator has an isolation bandwidth of larger than 0.4THz and the maximum isolation of higher than 110dB, and its operating frequency also can be broadly tuned by changing the external magnetic field or temperature. This low-loss, high isolation, broadband tunable nonreciprocal terahertz transmission mechanism has a great potential for terahertz application systems. (C) 2013 Optical Society of America
引用
收藏
页码：8614 / 8621
页数：8
相关论文
共 18 条
  • [1] Intrinsic Terahertz Plasmons and Magnetoplasmons in Large Scale Monolayer Graphene
    Crassee, I.
    Orlita, M.
    Potemski, M.
    Walter, A. L.
    Ostler, M.
    Seyller, Th.
    Gaponenko, I.
    Chen, J.
    Kuzmenko, A. B.
    [J]. NANO LETTERS, 2012, 12 (05) : 2470 - 2474
  • [2] Thermally tunable and omnidirectional terahertz photonic bandgap in the one-dimensional photonic crystals containing semiconductor InSb
    Dai, Xiaoyu
    Xiang, Yuanjiang
    Wen, Shuangchun
    He, Hongying
    [J]. JOURNAL OF APPLIED PHYSICS, 2011, 109 (05)
  • [3] Magnetically Tunable Terahertz Isolator Based on Structured Semiconductor Magneto Plasmonics
    Fan, Fei
    Chang, Sheng-Jiang
    Gu, Wen-Hao
    Wang, Xiang-Hui
    Chen, Ai-Qi
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2012, 24 (22) : 2080 - 2083
  • [4] Magnetically tunable silicon-ferrite photonic crystals for terahertz circulator
    Fan, Fei
    Chang, Sheng-Jiang
    Niu, Chao
    Hou, Yu
    Wang, Xiang-Hui
    [J]. OPTICS COMMUNICATIONS, 2012, 285 (18) : 3763 - 3769
  • [5] Sub-diffraction-limited optical imaging with a silver superlens
    Fang, N
    Lee, H
    Sun, C
    Zhang, X
    [J]. SCIENCE, 2005, 308 (5721) : 534 - 537
  • [6] Possible realization of directional optical waveguides in photonic crystals with broken time-reversal symmetry
    Haldane, F. D. M.
    Raghu, S.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 100 (01)
  • [7] Active Focal Length Control of Terahertz Slitted Plane Lenses by Magnetoplasmons
    Hu, Bin
    Wang, Qi Jie
    Kok, Shaw Wei
    Zhang, Ying
    [J]. PLASMONICS, 2012, 7 (02) : 191 - 199
  • [8] Broadly tunable one-way terahertz plasmonic waveguide based on nonreciprocal surface magneto plasmons
    Hu, Bin
    Wang, Qi Jie
    Zhang, Ying
    [J]. OPTICS LETTERS, 2012, 37 (11) : 1895 - 1897
  • [9] Nonreciprocal microresonators for the miniaturization of optical waveguide isolators
    Kono, Naoya
    Kakihara, Kuniaki
    Saitoh, Kunimasa
    Koshiba, Masanori
    [J]. OPTICS EXPRESS, 2007, 15 (12): : 7737 - 7751
  • [10] Lee, 2009, PRINCIPLES TERAHERTZ, P168
12