ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Design of tunable surface mode waveguide based on photonic crystal composite structure using organic liquid |
Lan-Lan Zhang(张兰兰)1, Wei Liu(刘伟)1, Ping Li(李萍)1, Xi Yang(杨曦)1, Xu Cao(曹旭)2 |
1 School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China; 2 Basic Teaching and Research Section, People's Liberation Army Rocket Force 96520, Luoyang 471000, China |
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Abstract With the method of replacing the surface layer of photonic crystal with tubes, a novel photonic crystal composite structure used as a tunable surface mode waveguide is designed. The tubes support tunable surface states. The tunable propagation capabilities of the structure are investigated by using the finite-difference time-domain. Simulation results show that the beam transmission distributions of the composite structure are sensitive to the frequency range of incident light and the surface morphology which can be modified by filling the tubes with different organic liquids. By adjusting the filler in tubes, the T-shaped, Y-shaped, and L-shaped propagations can be realized. The property can be applied to the tunable surface mode waveguide. Compared with a traditional single function photonic crystal waveguide, our designed structure not only has a small size, but also is a tunable device.
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Received: 18 November 2016
Revised: 20 January 2017
Accepted manuscript online:
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PACS:
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42.70.Qs
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(Photonic bandgap materials)
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42.82.Et
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(Waveguides, couplers, and arrays)
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73.20.At
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(Surface states, band structure, electron density of states)
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78.30.cb
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(Organic liquids)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 31401136) and the School Youth Fund of Henan University of Science and Technology, China (Grant No. 2014QN045). |
Corresponding Authors:
Lan-Lan Zhang
E-mail: zhanglan80515@163.com
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Cite this article:
Lan-Lan Zhang(张兰兰), Wei Liu(刘伟), Ping Li(李萍), Xi Yang(杨曦), Xu Cao(曹旭) Design of tunable surface mode waveguide based on photonic crystal composite structure using organic liquid 2017 Chin. Phys. B 26 064209
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