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Photo-Doped Active Electrically Controlled Terahertz Modulator

Photo-Doped Active Electrically Controlled Terahertz Modulator
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摘要 We demonstrate an electric-controlled terahertz（THz） modulator which can be used to realize amplitude modulation of terahertz waves with slight photo-doping. The THz pulse transmission was efficiently modulated by electrically controlling the monolayer silicon-based device. The modulation depth reached 100% almost when the applied voltage was 7V at an external laser intensity of 0.6W/cm2. The saturation voltage reduced with the increase of the photo-excited intensity. In a THz continuous wave（CW）system, a significant fall in both THz transmission and reflection was also observed with the increase of applied voltage. This reduction in the THz transmission and reflection was induced by the absorption for electron injection. The results show that a high-efficiency and high modulation depth broadband electric-controlled terahertz modulator in a pure Si structure has been realized. We demonstrate an electric-controlled terahertz（THz） modulator which can be used to realize amplitude modulation of terahertz waves with slight photo-doping. The THz pulse transmission was efficiently modulated by electrically controlling the monolayer silicon-based device. The modulation depth reached 100% almost when the applied voltage was 7V at an external laser intensity of 0.6W/cm2. The saturation voltage reduced with the increase of the photo-excited intensity. In a THz continuous wave（CW）system, a significant fall in both THz transmission and reflection was also observed with the increase of applied voltage. This reduction in the THz transmission and reflection was induced by the absorption for electron injection. The results show that a high-efficiency and high modulation depth broadband electric-controlled terahertz modulator in a pure Si structure has been realized.
作者 Bo Zhang Liang Zhong Ting He Jing-Ling Shen
机构地区 Department of Physics
出处 《Journal of Electronic Science and Technology》 CAS CSCD 2015年第2期113-116,共4页 电子科技学刊（英文版）
基金 supported by the Natural Science Foundation of Beijing under Grant No.4144069 the Science and Technology Project of Beijing Municipal Education Commission under Grant No.KM201410028004
关键词 modulator terahertz saturation electrically doping modulated Controlled excited monolayer tunable modulator terahertz saturation electrically doping modulated Controlled excited monolayer tunable
分类号 TN761 [电子电信—电路与系统] TN104.3 [电子电信—物理电子学]
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参考文献17

  • 1B. Ferguson and X. C. Zhang, “Materials for terahertz science and technology,” Nature Materials, vol. 1, no. 1, pp.26-33, 2002.
  • 2M. Tonouchi, “Cutting-edge terahertz technology,” Nature Photonics, vol. 1, no. 2, pp. 97-105, 2007.
  • 3H.-T. Chen, W. J. Padilla, M. J. Cich, A. K.. Azad, R. D. Averitt, and A. J. Taylor, “A metamaterial solid-state terahertz phase modulator,” Nature Photonics, vol. 3, no. 3, pp. 148-151,2009.
  • 4H.-T. Chen, W. J. Padilla, J. M. O. Zide, A. C. Gossard, A. J. Taylor, and R. D. Averitt, “Active terahertz metamaterial devices,” Nature, vol. 444, no. 7119, pp. 597-600, 2006.
  • 5E. Hendry, F. J. Garcia-Vidal, L. Martin-Moreno, J. Gomez Rivas, M. Bonn, A. P. Hibbins, and M. J. Lockyear, “Optical control over surface-plasmon-polariton-assisted THz transmission through a slit aperture,” Physical Review Letters, vol. 100, no. 12, pp. 123901, 2008.
  • 6P. Weis, J. Garcia-Pomar, M. HoDh, B. Reinhard, A. Brodyanski, and M. Rahm, “Spectrally wide-band terahertz wave modulator based on optically tuned grapheme,” ACS Nano, vol.6, no. 10, pp. 9118-9124, 2012.
  • 7Y. G Jeong, H. Bemien, J. S. Kyoung, H. R. Park, H. S. Kim, J. W. Choi, B. J. Kim, H. T. Kim, K. J. Ahn, and D. S. Kim, “Electrical control of terahertz nano antennas on V02 thin film,” Optics Express, vol. 19, no. 22, pp. 21211-21215,2011.
  • 8S. H. Lee, M. H. Choi, T. T. Kim, S. W. Lee, M. Liu, X. Yin, H. K. Choi, S. S. Lee, C. G. Choi, S. Y. Choi, X. Zhang, and B. K. Min, "Switching terahertz waves with gate-controlled active graphene metamaterials," Nature Materials, vol. 11, no. 11, pp. 936-941, 2012.
  • 9H. K. Yoo, C. Kang, Y. Yoon, H. Lee, J. W. Lee, K. Lee, andC. S. Kee, “Organic conjugated material-based broadband terahertz wave modulators,” Applied Physics Letters, vol. 99, no. 6, pp. 061108, 2011.
  • 10H. K. Yoo, S. G Lee, C. Kang, C. S. Kee, and J. W. Lee, “Terahertz modulation on angle-dependent photoexcitation in organic-inorganic hybrid structures,” Applied Physics Letters, vol. 103, no. 15, pp. 151116,2013.
Journal of Electronic Science and Technology
2015年 第2期

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