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Multiple slow light bands in photonic crystal coupled resonator optical waveguides constructed with a portion of photonic quasicrystals |
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| Authors: | Yun Shen Guoping WangGuoping Yu Jiwu FuLin Chen |
| Affiliation: | a Department of Physics, Nanchang University, Nanchang 330031, China b Key Laboratory of Acoustic and Photonic Materials and Devices, Ministry of Education and Department of Physics, Wuhan University, Wuhan 430072, China c Wuhan National Laboratory for Optoelectronics, Huazhong University of Science & Technology, Wuhan 430074, China |
| Abstract: | Coupled resonator optical waveguides (CROWs) in complex two-dimensional (2D) photonic crystals (PCs) constructed with a portion of 12-fold photonic quasicrystals (PQs) are proposed. We show that enhanced transmission and slow light can be simultaneously achieved in such waveguides as well as general CROWs. Moreover, due to higher degree of flexibility and tunability of PQs for defect mode properties compared to conventional periodic PCs, multiple slow light bands can be flexibly obtained in CROWs constructed with complex 2D PCs. Our results may lead to the development of a variety of novel ultracompact devices for photonic integrated circuits. |
| Keywords: | Multiple slow light bands Complex photonic crystals Photonic quasicrystal Coupled resonator optical waveguides |
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