科研之友
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摘要
A three-dimensional complete bandgap (CBG) in the visible range is achieved by a self-similar spherical photonic crystal (PC) fabricated using the materials with low refractive index. A novel holographic technique is developed to fabricate such a structure. A CBG with a width of 120 urn is obtained experimentally. Even though the light not passing through the center of the sphere incidents on the PC with an incident angle of 49 degrees, a 30-nm-wide CBG can still be kept. Theoretical analysis is also given in which experimental results can be well explained.
- 出版日期2008-6
- 单位北京师范大学
