Abstract By utilizing the electrorheological effect, three-dimensional colloidal crystals can be produced, whose lattice structure can be changed from the body-centered-tetragonal lattice to other lattices under the application of electric fields. This paper calculates photonic band structures of such crystals with lattice structure transformation, and demonstrates the existence of complete band gaps for some intermediate lattices. Thus, it becomes possible to use the electrorheological effect to achieve photonic crystals with desired photonic gap properties resulting from tunable structures.
Fund: Project supported by
the National Key Basic Research Special Fund (Grant No. 2006CB921706), and
the National Natural Science Foundation of China
(Grant Nos. 10604014 and 10874025).
Cite this article:
Zhang Li-Feng(张利锋) and Huang Ji-Ping(黄吉平) Photonic band structure of three-dimensional colloidal crystals with field-induced lattice structure transformation 2010 Chin. Phys. B 19 024213
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