Magnetically Tunable Terahertz Switch and Band-Pass Filter |
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| Authors: | ZHANG Hui GUO Peng CHANG Sheng-Jiang YUAN Jing-He |
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| Affiliation: | Institute of Modern Optics, Nankai University, Tianjin 300071Institute of Science and Technology for Opto-Electron Information, Yantai University, Yantai 264005 |
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| Abstract: | A novel design of a tunable terahertz switch and band-pass filter using liquid-crystal-filled photonic crystal waveguide is demonstrated. The effects of magnetic field on the photonic bandgaps and transmitting properties of a THz wave are investigated by using the plane wave expansion method and finite difference time domain method. The efficient photonic bandgap tuning is predicted such that the two-dimensional liquid-crystal-filled photonic crystal waveguide can serve as a switch and continuously tunable band-pass filter with controlling of the magnetic field. |
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| Keywords: | 07 57 Hm 42 70 Qs 42 79 Ci |
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