期刊
OPTICS COMMUNICATIONS
卷 283, 期 13, 页码 2647-2650出版社
ELSEVIER
DOI: 10.1016/j.optcom.2010.02.046
关键词
Terahertz wave; Bandpass filter; Photonic crystals
类别
资金
- National Natural Science Foundation of China [60971027]
- National Basic Research Program of China [2007CB310403]
- China Postdoctoral Science Foundation
We designed a narrow bandpass terahertz wave filter using photonic crystals with a line defect. An inserted linear defect in one-dimensional photonic crystal structures for a channeled filtering in the terahertz range are studied and designed theoretically. By using transfer matrix method, we examined the transmittance spectra for the proposed terahertz wave filter has a 3 dB transmission loss bandwidth of 20 MHz ranging from 0.29998 THz to 0.30001 THz. The simulated results show that a very narrow transmission band and high transmission (higher than 99.99%) centered at lambda(0), and very sharp edges can be achieved. (C) 2010 Elsevier B.V. All rights reserved.
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