Magnetically Tunable Terahertz Switch and Band-Pass Filter
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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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Cite this article:
ZHANG Hui, GUO Peng, CHANG Sheng-Jiang, YUAN Jing-He. Magnetically Tunable Terahertz Switch and Band-Pass Filter[J]. Chin. Phys. Lett., 2008, 25(11): 3898-3900.
ZHANG Hui, GUO Peng, CHANG Sheng-Jiang, YUAN Jing-He. Magnetically Tunable Terahertz Switch and Band-Pass Filter[J]. Chin. Phys. Lett., 2008, 25(11): 3898-3900.
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ZHANG Hui, GUO Peng, CHANG Sheng-Jiang, YUAN Jing-He. Magnetically Tunable Terahertz Switch and Band-Pass Filter[J]. Chin. Phys. Lett., 2008, 25(11): 3898-3900.
ZHANG Hui, GUO Peng, CHANG Sheng-Jiang, YUAN Jing-He. Magnetically Tunable Terahertz Switch and Band-Pass Filter[J]. Chin. Phys. Lett., 2008, 25(11): 3898-3900.
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