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LI JIU-SHENG1,* , YU JIA-PEI1, ZHANG LE1, HU JIAN-RONG1, QIU GUO-HUA1
We proposed a tunable terahertz wave add-drop filter based on a rectangular defect rod, an elliptical defect rod, and two output line-defect waveguides in square lattice photonic crystal silicon rods. The coupled mode theory and finite-difference time-domain method are employed to analyze the transmission properties of the device. Through merely changing the refractive index of the defect rods, the add-drop operating frequency of the proposed filter can be easily varied from 0.2959 THz to 0.3005 THz. The adding and dropping efficiency of the proposed structure are close to 93.6% and 99.0%, respectively..
Terahertz wave, Terahertz add-drop filter, Photonic crystal.
LI JIU-SHENG, YU JIA-PEI, ZHANG LE, HU JIAN-RONG, QIU GUO-HUA, Tunable terahertz wave add drop filter, Optoelectronics and Advanced Materials - Rapid Communications, 12, 3-4, March-April 2018, pp.140-145 (2018).
Submitted at: June 6, 2017
Accepted at: April 5, 2018
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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