THz Regulation Characteristics of U-shaped Open Resonators with Huge Aspect Ratio

ZHENG Yun-bao; SHEN Di; LIU Hai-ying; CHEN Xi; LIAO Jian-hong; ZENG Qun

doi:10.3788/fgxb20194010.1288

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THz Regulation Characteristics of U-shaped Open Resonators with Huge Aspect Ratio

Device Fabrication and Physics | 更新时间：2020-08-12

- THz Regulation Characteristics of U-shaped Open Resonators with Huge Aspect Ratio
- Chinese Journal of Luminescence Vol. 40, Issue 10, Pages: 1288-1294(2019)
- 作者机构：
  
  华南师范大学信息光电子科技学院广东省微纳光子功能材料与器件重点实验室,广东广州,510006
- 作者简介：
- 基金信息：
  
  Supported by Natural Science Foundation of Guangdong Province(2018A030313854)
- DOI：10.3788/fgxb20194010.1288
  CLC： O43
- Received：15 April 2019，
  
  Revised：17 May 2019，
  
  Published Online：20 May 2019，
  
  Published：05 October 2019
- 稿件说明：
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郑允宝, 申迪, 刘海英等. 超大长宽比U型开口谐振器的太赫兹调控特性[J]. 发光学报, 2019,40(10): 1288-1294

ZHENG Yun-bao, SHEN Di, LIU Hai-ying etc. THz Regulation Characteristics of U-shaped Open Resonators with Huge Aspect Ratio[J]. Chinese Journal of Luminescence, 2019,40(10): 1288-1294
郑允宝, 申迪, 刘海英等. 超大长宽比U型开口谐振器的太赫兹调控特性[J]. 发光学报, 2019,40(10): 1288-1294 DOI： 10.3788/fgxb20194010.1288.

ZHENG Yun-bao, SHEN Di, LIU Hai-ying etc. THz Regulation Characteristics of U-shaped Open Resonators with Huge Aspect Ratio[J]. Chinese Journal of Luminescence, 2019,40(10): 1288-1294 DOI： 10.3788/fgxb20194010.1288.

摘要

近年来，金属亚波长结构由于在负折射材料方面存在巨大应用价值，及可作为太赫兹波段的光学限制器等器件应用，引起了研究者们的广泛关注。本文采用电子束曝光离子束刻蚀的方法在金膜上制备了亚波长的超大长宽比U型开口矩形谐振器阵列结构，利用时域有限差分方法（FDTD）和太赫兹时域光谱技术（THz-TDS）对U型阵列结构的太赫兹波透射光谱响应进行了测量和分析，讨论了透过率对结构几何参数的依赖特性和异常透射的物理机制。通过这种U型开口谐振器能够实现太赫兹波的强局域和场增强，可将太赫兹波局域在波长千分之一的尺寸上，从而实现了太赫兹的异常透射现象，这种超大长宽比的U型开口谐振器可在太赫兹探测、太赫兹成像及其他光学器件的设计上得以应用。

Abstract

Metal sub-wavelength periodic array structures have attracted great interest due to their potential applications in the construction of meta-material

and the investigation of the metal sub-wavelength periodic array structures is essential for the development of optoelectronic devices

such as optical filters

ultrafast optical switches and optical limiters

etc.

operating in the microwave and THz spectral region. In this thesis

we investigated numerically and experimentally the transmission properties of the metal sub-wavelength periodic array structures in the THz spectral region based on the finite-difference time-domain method and the terahertz time domain spectroscopy technique. The U-shaped open resonators with huge aspect ratio were designed. We employed the electron beam exposure and ion beam lithography technology to construct the samples and measured its transmission spectrum. At the same time

we explored the dependence of the transmission on the structure parameters and tried to find out the physical mechanism for the abnormal transmission. After a series of studies

it was found that the localization of THz wave and electric field enhancement could be achieved by the U-shaped open resonator. The incident THz wave could be localized in a region whose dimension is only one-thousand of the central wavelength of the THz wave. We believe that the U-shaped open resonators with huge aspect ratio could be applied in the fabrication of sensors and other optical devices in the future.

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references

陈泽章. 太赫兹波段液晶分子极化率的理论研究[J]. 物理学报, 2016,65(14):143101-1-6. CHEN Z Z. Theoretical study on the polarizability properties of liquid crystal in the THz range[J]. Acta Phys. Sinica, 2016,65(14):143101-1-6. (in Chinese)

LEE M,WANKE M C. Applied physics. Searching for a solid-state terahertz technology[J]. Science, 2007,316(5821):64-65.

ZHAO W Y,JU D Q,JIANG Y Y. Efficient localization of terahertz waves within a gradient dielectric-filled metallic grating[J]. Appl. Phys. Express, 2014,7(12):124301.

董建奇,程文其,李梦阁,等. 含氰基混合液晶太赫兹波吸收模拟研究[J]. 液晶与显示, 2017,32(8):590-595. DONG J Q,CHENG W Q,LI M G,et al.. Simulation study on terahertz absorption of liquid crystal mixture with cyano radical[J]. Chin. J. Liq. Cryst. Disp., 2017,32(8):590-595. (in Chinese)

王雅昕,程雅青,王凯礼,等. 含氟炔基三苯液晶分子太赫兹吸收的计算模拟研究[J]. 液晶与显示, 2018,33(8):645-652. WANG Y X,CHENG Y Q,WANG K L,et al.. Simulation on terahertz absorption of fluorinated phenylacetylene biphenyl liquid crystal molecules[J]. Chin. J. Liq. Cryst. Disp., 2018,33(8):645-652. (in Chinese)

O'HARA J F,WITHAYACHUMNANKUL W,AL-NAIB I. A review on thin-film sensing with terahertz waves[J]. J. Infrared, Millim. Terahertz Waves, 2012,33(3):245-291.

史生才,李婧,张文,等. 超高灵敏度太赫兹超导探测器[J]. 物理学报, 2015,64(22):228501-1-10. SHI S C,LI J,ZHANG W,et al.. Terahertz high-sensitivity superconducting detectors[J]. Acta Phys. Sinica, 2015,64(22):228501-1-10. (in Chinese)

郑灵,赵青,刘述章,等. 太赫兹波在非磁化等离子体中的传输特性研究[J]. 物理学报, 2012,61(24):245202-1-7. ZHENG L,ZHAO Q,LIU S Z,et al.. Studies of terahertz wave propagation in non-magnetized plasma[J]. Acta Phys. Sinica, 2012,61(24):245202-1-7. (in Chinese).

陈伟,郭立新,李江挺,等. 时空非均匀等离子体鞘套中太赫兹波的传播特性[J]. 物理学报, 2017,66(8):084102-1-7. CHEN W,GUO L X,LI J T,et al.. Propagation characteristics of terahertz waves in temporally and spatially inhomogeneous plasma sheath[J]. Acta Phys. Sinica, 2017,66(8):084102-1-7. (in Chinese)

刘建丰,周庆莉,施宇蕾,等. 基底对亚波长金属双环结构太赫兹透射性质的影响[J]. 物理学报, 2012,61(4):048101-1-9. LIU J F,ZHOU Q L,SHI Y L,et al.. The effect of substrate on terahertz transmission properties through metal subwavelength dual-ring structure[J]. Acta Phys. Sinica, 2012,61(4):048101-1-9. (in Chinese)

EBBESEN T W,LEZEC H J,GHAEMI H F,et al.. Extraordinary optical transmission through sub-wavelength hole arrays[J]. Nature, 1998,391(6668):667-669.

GRUPP D E,LEZEC H J,EBBESEN T W,et al.. Crucial role of metal surface in enhanced transmission through subwavelength apertures[J]. Appl. Phys. Lett., 2000,77(11):1569-1571.

KIM T J,THIO T,EBBESEN T W,et al.. Control of optical transmission through metals perforated with subwavelength hole arrays[J]. Opt. Lett., 1999,24(4):256-258.

CAO Q,LALANNE P. Negative role of surface plasmons in the transmission of metallic gratings with very narrow slits[J]. Phys. Rev. Lett., 2002,88(5):057403-1-4.

MAIER S A,ANDREWS S R,MARTN-MORENO L,et al.. Terahertz surface plasmon-polariton propagation and focusing on periodically corrugated metal wires[J]. Phys. Rev. Lett., 2006,97(17):176805.

ZHAN H,MENDIS R,MITTLEMAN D M. Superfocusing terahertz waves below /250 using plasmonic parallel-plate waveguides[J]. Opt. Express, 2010,18(9):9643-9650.

SEOM A, PARK H R,KOO S M,et al.. Terahertz field enhancement by a metallic nano slit operating beyond the skin-depth limit[J]. Nat. Photon., 2009,3(3):152-156.

PADILLA W J,TAYLOR A J,HIGHSTRETE C,et al.. Dynamical electric and magnetic metamaterial response at terahertz frequencies[J]. Phys. Rev. Lett., 2006,96(10):107401-1-4.

SHALABY M,PECCIANTI M,OZTURK Y,et al.. Terahertz Faraday rotation in a magnetic liquid:high magneto-optical figure of merit and broadband operation in a ferrofluid[J]. Appl. Phys. Lett., 2012,100(24):241107-1-3.

AL-NAIB I,SINGH R,SHALABY M,et al.. Enhanced Q-factor in optimally coupled macrocell THz metamaterials:effect of spatial arrangement[J]. IEEE J. Sel. Top. Quant. Electrons, 2013,19(1):8400807-1-6.

LI Q,ZHANG X Q,CAO W,et al.. An approach for mechanically tunable,dynamic terahertz bandstop filters[J]. Appl. Phys. A, 2012,107(2):285-291.

LEE J W,SEO M A,JEOUNG S C,et al.. Multifunctional terahertz filters designed by shape resonance[C]. Proceedings of Passive Components and Fiber-based Devices Ⅲ,Gwangju,South Korea, 2006.

LEE J W,SEO M A,PARK D J,et al.. Terahertz transparency at Fabry-Perot resonances of periodic slit arrays in a metal plate:experiment and theory[J]. Opt. Express, 2006,14(26):12637-12643.

LIN R R,XU Y B,LIU H Y,et al.. Strong localization of terahertz wave and significant enhancement in electric field achieved in U-shaped resonators with a large aspect ratio[J]. Appl. Phys. Lett., 2013,103(12):123505-1-5.

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