Wang Qiong et al 2008 Chinese Phys. Lett. 25 1313 doi:10.1088/0256-307X/25/4/041
Independent Modulation of Omnidirectional Defect Modes in Single-Negative Materials Photonic Crystal with Multiple Defects
Wang Qiong1, Yan Chang-Chun1, Zhang Ling-Ling1 and Cui Yi-Ping1
Show affiliationsSingle-negative materials based on photonic crystal with multiple defect layers are designed and the free modulation of defect modes is studied. The results show that the multi-defect structure can avoid the interference between the defect states. Therefore, the designed double defect modes in the zero effective-phase gap can be adjusted independently by changing the thickness of different defect layers. In addition, the two tunable defect modes have the omnidirectional characteristics. This multi-defect structure with above-mentioned two advantages has potential applications in modern optical devices such as tunable omnidirectional filters.
- PACS
- Subjects
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Condensed matter: electrical, magnetic and optical
- Dates
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Issue 4 (April 2008)
Received 10 December 2007
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Independent Modulation of Omnidirectional Defect Modes in Single-Negative Materials Photonic Crystal with Multiple Defects
Wang Qiong et al 2008 Chinese Phys. Lett. 25 1313
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