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Photonic Crystal Polarizing and Non-Polarizing Beam Splitters |
| GUAN Chun-Ying;SHI Jin-Hui;YUAN Li-Bo |
| Photonics Research Center, School of Science, Harbin Engineering University, Harbin 150001 |
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| Cite this article: |
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GUAN Chun-Ying, SHI Jin-Hui, YUAN Li-Bo 2008 Chin. Phys. Lett. 25 556-558 |
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Abstract A polarizing beam splitter (PBS) and a non-polarizing beam splitter (NPBS) based on a photonic crystal (PC) directional coupler are demonstrated. The photonic crystal directional coupler consists of a hexagonal lattice of dielectric
pillars in air and has a complete photonic band gap. The photonic band structure and the band gap map are calculated using the plane wave expansion (PWE) method. The splitting properties of the splitter are investigated numerically using the finite difference time domain (FDTD) method.
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| Keywords:
42.70.Qs
42.79.Gn
43.79.Fm
42.25.Ja
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Received: 25 August 2007
Published: 30 January 2008
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