Photonic band structure of fcc colloidal crystals.
Photonic band structure of fcc colloidal crystals.
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DOI：
10.1103/physrevlett.76.315
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发表时间：
1996-01
影响因子：
8.6
通讯作者：
R. Pradhan;J. A. Bloodgood;G. H. Watson
中科院分区：
文献类型：
--
作者：
R. Pradhan;J. A. Bloodgood;G. H. Watson
聚苯乙烯胶体晶体形成三维周期性介电结构，可用于可见光区光子带结构的测量。通过透射测量，得到了面心立方晶体在L点和W点之间沿着方向的光子带结构。Kossel线图案用于定位晶格的对称点，以精确定位和定向晶体。此外，这些图案以定性的方式揭示了晶体的基本光子带结构。
Polystyrene colloidal crystals form three dimensional periodic dielectric structures which can be used for photonic band structure measurements in the visible regime. From transmission measurements the photonic band structure of an fcc crystal has been obtained along the directions between the $L$ point and the $W$ point. Kossel line patterns were used for locating the symmetry points of the lattice for exact positioning and orientation of the crystals. In addition, these patterns reveal the underlying photonic band structure of the crystals in a qualitative way.