激光与光电子学进展, 2013, 50 (6): 062301, 网络出版: 2013-05-15   

基于自准直效应和法布里珀罗腔的太赫兹波调制器

Terahertz-Wave Modulator Based on Self-Collimation Effect and Fabry-Pérot Cavity
作者单位
上海理工大学光电信息与计算机工程学院, 上海 200092
摘要
光子晶体技术和太赫兹波技术相结合为设计太赫兹波调制器提供了新的思路。提出并设计了一种基于自准直效应和法布里珀罗(F-P)腔的太赫兹波调制器,该调制器通过在特殊结构设计的硅基空气孔型光子晶体中填充5CB液晶制成。应用时域有限差分法(FDTD),研究了太赫兹波在该调制器中的传输特性,包括时域响应、频域响应和稳态能量场分布等。该调制器调制速率约为10 kHz,插入损耗约为0.308 dB,调谐范围为0.308~34.32 dB,体积小易于集成,可根据工作波长需要设计调制器的尺寸。该调制器最大优点在于其工作波长范围宽,是很理想的太赫兹波调制器件。
Abstract
The combination of photonic crystal technology and terahertz technology has provided a new idea to design the terahertz-wave modulator. A terahertz-wave modulator based on self-collimation effect and Fabry-Pérot (F-P) cavity is presented. It is made by filling 5CB liquid crystal into the air holes of the photonic crystal which is designed with special structures. The transmission characteristics of the THz wave, including time-domain response, frequency-domain response and energy distributions of the steady state, are studied with the finite-difference time-domain method (FDTD). The modulator, with a modulation rate of about 10 kHz, an insertion loss of about 0.308 dB, and a tuning range of 0.308~34.32 dB, has a small size. It can be designed according to the demand of the working wavelength and can be easily integrated. Wide operating wavelength range is the greatest advantage of this modulator. It is an ideal terahertz-wave modulator.
参考文献

[1] E. Yabonovitch. Inhibited spontaneous emission in solid state physics and electronics[J]. Phys. Rev. Lett., 1987, 58(20): 2059~2062

[2] H. Kosaka, T. Kawashima, A. Tomita et al.. Self-collimating phenomena in photonic crystals[J]. Appl. Phys. Lett., 1999, 74(9): 1212~1215

[3] T. Kleine-Ostmann, K. Pierz, G. Hein et al.. Audio signal transmission over THz communication channel using semiconductor modulator[J]. Electron. Lett., 2004, 40(2): 124~126

[4] L. Fekete, F. Kadlec, H. Nemec et al.. Fast one-dimensional photonic crystal modulators for the terahertz range[J]. Opt. Express, 2007, 15(14): 8898~8912

[5] Li Jiusheng. Terahertz modulator using photonic crystals[J]. Opt. Commun., 2007, 269(1): 98~101

[6] Li Jiusheng, He Jinlong, Hong Zhi. Terahertz wave switch based on silicon photonic crystals[J]. Appl. Opt., 2007, 46(22): 5034~5037

[7] Li Jiusheng, Qiu Haibo, Zheng Ying et al.. Novel terahertz wave switch[C]. SPIE, 2007, 6840: 684019

[8] Z. Ghattan, T. Hasek, R. Wilk et al.. Sub-terahertz on-off switch based on a two-dimensional photonic crystal infiltrated by liquid crystals[J]. Opt. Commun., 2008, 281(18): 4623~4625

[9] 苏坚, 陈鹤鸣. 基于液晶光子晶体的太赫兹波调制器[J]. 光学学报, 2010, 30(9): 2710~2713

    Su Jian, Chen Heming. Terahertz wave modulator based on liquid-crystal-filled photonic crystal[J]. Acta Optica Sinica, 2010, 30(9): 2710~2713

[10] Chen Heming, Su Jian, Wang Jingli et al.. Optically-controlled high-speed terahertz wave modulator based on nonlinear photonic crystals[J]. Opt. Express, 2011, 19(4): 3599~3603

[11] 许景周, 张希成. 太赫兹科学技术和应用[M]. 北京: 北京大学出版社, 2007. 32~36

    Xu Jingzhou, Zhang Xicheng. Terahertz Science Technology and Applications[M]. Beijing:Peking University Press, 2007. 32~36

[12] Lai Guozhong, Chen Xiyao, Wang Yufei et al.. Photonic crystal Fabry-Perot self-collimation interferometer by liquid crystal infiltration[J]. Key Engineering Materials, 2010, 428-429: 573~578

[13] Tsai Tsong-Ru, Chen ChaoYuan, Pan Ciling et al.. Terahertz time-domain spectroscopy studies of the optical constants of the nematic liquid crystal 5CB[J]. Appl. Opt., 2003, 42(13): 2372~2376

[14] Rafal Wilk, Nico Vieweg, Olaf Kopschinski et al.. THz spectroscopy of liquid crystals from the CB family[J]. J. Infrared Millim. Terahertz Waves, 2009, 30(11): 1139~1147

[15] Pan Rupin, Hsieh Chofan, Pan Ciling et al.. Temperature-dependent optical constants and birefringence of nematic liquid crystal 5CB in the terahertz frequency range[J]. J. Appl. Phys., 2008, 103(9): 093523

[16] Dennis W. Prather, Lin Chunchen. Terahertz integrated photonic crystal devices[C]. 3rd IEEE International Conference on Group IV Photonics, 2006, 3: 240~242

[17] 童凯, 崔卫卫, 汪梅婷. 一维缺陷光子晶体温度的测量[J]. 物理学报, 2008, 57(2):762~766

    Tong Kai, Cui Weiwei, Wang Meiting. Temperature measurement with one dimensional defect photonic crystal[J]. Acta Physica Sinica, 2008, 57(2): 762~766

蒋强, 梁斌明, 胡艾青, 陈家璧, 庄松林. 基于自准直效应和法布里珀罗腔的太赫兹波调制器[J]. 激光与光电子学进展, 2013, 50(6): 062301. Jiang Qiang, Liang Binming, Hu Aiqing, Chen Jiabi, Zhuang Songlin. Terahertz-Wave Modulator Based on Self-Collimation Effect and Fabry-Pérot Cavity[J]. Laser & Optoelectronics Progress, 2013, 50(6): 062301.

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