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A Two-Dimensional Photonic Crystal Slab Mirror with Silicon on Insulator for Wavelength 1.3μm |
| TANG Hai-Xia;ZUO Yu-Hua;YU Jin-Zhong;WANG Qi-Ming |
| State Key Joint Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 |
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| Cite this article: |
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TANG Hai-Xia, ZUO Yu-Hua, YU Jin-Zhong et al 2006 Chin. Phys. Lett. 23 2790-2792 |
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Abstract A concrete two-dimensional photonic crystal slab with triangular lattice used as a mirror for the light at wavelength 1.3μm with a silicon-on-insulator (SOI) substrate is designed by the three-dimensional plane wave expansion method. For TE-like modes, the bandgap in the Γ-K direction is from 1087nm to 1559nm. The central wavelength in the bandgap is about 1.3μm, hence the incident light at wavelength 1.3μm will be strongly reflected. Experimentally, such a photonic crystal slab is fabricated on an SOI substrate by the combination of EBL and ICP etching. The measurement of its transmission characteristics shows the bandgap edge in a longer wavelength is about 1540nm. The little discrepancy between the experimental data and the theoretical values is mainly due to the size discrepancy of the fabricated air holes.
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| Keywords:
42.70.Qs
42.82.Et
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Published: 01 October 2006
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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42.82.Et
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(Waveguides, couplers, and arrays)
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