Large-scale photonic crystals with inserted defects and their optical properties |
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Authors: | Li Chao-Rong Li Juan Yang Hu Zhao Yong-Qiang Wu Yan Dong Wen-Jun Chen Ben-Yong |
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Abstract: | Deliberately introducing defects into photonic crystals is an important way to functionalize the photonic crystals. We prepare a special large-scale three-dimensional(3D) photonic crystal(PC) with designed defects by an easy and low-cost method. The defect layer consists of photoresist strips or air-core strips. Field emission scanning electron microscopy(FESEM) shows that the 3D PC is of good quality and the defect layer is uniform. Different defect states shown in the ultraviolet-visible spectra are induced by the photoresist strip layer and air-core strip layer. The special large-scale 3D PC can be tested for integrated optical circuits, and the defects can act as optical waveguides. |
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Keywords: | photonic crystal designed defects photolithography defect state |
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