Splitting of defect-mode in one-dimensional magnetic photonic crystal

✍ Scribed by Hong Wang; YSheng Luo; Yong-Tao Wang; Hong-Bing Zhang; Yun-Tuan Fang

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 691 KB
• Volume: 406
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2011.04.042

✦ Synopsis

Using the 4 Â 4 transfer matrix method, we investigate the splitting of defect-modes in onedimensional magnetic photonic crystal. Numerical results exhibit defect-mode splitting in the presence of external magnetic fields. The splitting condition has been examined. The results show that defectmode splitting critically depends on the magneto-optical gyrotropy factor and number of layers. We predict theoretically that magnetic photonic crystal consisting of gyrotropic material can be used as a tunable filter.