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Y-shaped beam splitter by graded structure design in a photonic crystal |
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| Authors: | Kun Ren XiaoBin Ren |
| Institution: | 1Key Laboratory of Opto-electronics Information Technology (Tianjin University), Ministry of Education; College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China; 2College of Science, Tianjin University of Science & Technology, Tianjin 300222, China |
| Abstract: | We propose a method to bend a self-collimated beam in a photonic crystal. The beam bending relies on the gradual variation of the constitutive parameters of the photonic crystal. A new Y-shaped beam splitter is designed with a composite structure constructed using two graded photonic crystals. We demonstrate that the incident beam is divided into two output beams by the designed splitter. The power ratio of the two beams can be adjusted easily by changing the location of the input beam. |
| Keywords: | beam splitter beam bending graded photonic crystal self-collimation |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ | |