| Multiband Terahertz Photonic Band Gaps of Subwavelength Planar Fractals |
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| 引用本文： | 赵国忠 田艳 孙红起 张存林 杨国桢. Multiband Terahertz Photonic Band Gaps of Subwavelength Planar Fractals[J]. 中国物理快报, 2006, 23(6): 1456-1458 |
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| 作者姓名： | 赵国忠 田艳 孙红起 张存林 杨国桢 |
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| 作者单位： | [1]Department of Physics, Capital Normal University, Beijing 100037 [2]Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10474067 and 10390160, and the Science and Technology Development Foundation of the Education Commission of Beijing under Grant No KM200510028003. |
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| 摘 要： | Optical transmission properties of subwavelength planar fractals in terahertz （THz） frequency regime are studied by means of time-domain spectroscopy. The transmission spectra with multiple pass bands and stop bands are observed. The tunable photonic band gaps are realized by changing the angle between the principle axis of planar fractal and the polarization of THz wave. The possible application of the subwavelength optical component is discussed. We attribute the detected transmittance from subwavelength fractals to localized resonances.
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| 关 键 词： | 多频带太赫 光子带 次波长 平面分形 光电应用 |
| 收稿时间： | 2006-03-04 |
| 修稿时间： | 2006-03-04 |
Multiband Terahertz Photonic Band Gaps of Subwavelength Planar Fractals |
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| ZHAO Guo-Zhong,TIAN Yan,SUN Hong-Qi,ZHANG Cun-Lin,YANG Guo-Zhen. Multiband Terahertz Photonic Band Gaps of Subwavelength Planar Fractals[J]. Chinese Physics Letters, 2006, 23(6): 1456-1458 |
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| Authors: | ZHAO Guo-Zhong TIAN Yan SUN Hong-Qi ZHANG Cun-Lin YANG Guo-Zhen |
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| Affiliation: | Department of Physics, Capital Normal University, Beijing 100037Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | Optical transmission properties of subwavelength planar fractals in terahertz (THz) frequency regime are studied by means of time-domain spectroscopy. The transmission spectra with multiple pass bands and stop bands are observed. The tunable photonic band gaps are realized by changing the angle between the principle axis of planar fractal and the polarization of THz wave. The possible application of the subwavelength optical component is discussed. We attribute the detected transmittance from subwavelength fractals to localized resonances. |
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| Keywords: | 42.25.Bs 42.70.Qs 81.40.Tv |
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