| Photonic band structure of three-dimensional colloidal crystals with field-induced lattice structure transformation |
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| 作者姓名： | 张利锋 黄吉平 |
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| 作者单位： | Department of Physics and Surface Physics Laboratory (National Key
Laboratory), Fudan University, Shanghai 200433, China;Department of Physics and Surface Physics Laboratory (National Key
Laboratory), Fudan University, Shanghai 200433, China |
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| 基金项目： | 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). |
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| 摘 要： | By utilizing the electrorheological effect, three-dimensional colloidal crystals can be produced, whose lattice struc-ture 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 electrorheo-logical effect to achieve photonic crystals with desired photonic gap properties resulting from tunable structures.
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| 关 键 词： | photonic crystals electrorheological effects band gaps |
| 收稿时间： | 2009-03-14 |
| 修稿时间： | 4/1/2009 12:00:00 AM |
Photonic band structure of three-dimensional colloidal crystals with field-induced lattice structure transformation |
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| Zhang Li-Feng and Huang Ji-Ping.Photonic band structure of three-dimensional colloidal crystals with field-induced lattice structure transformation[J].Chinese Physics B,2010,19(2):24213-024213. |
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| Authors: | Zhang Li-Feng and Huang Ji-Ping |
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| Affiliation: | Department of Physics and Surface Physics Laboratory (National Key
Laboratory), Fudan University, Shanghai 200433, China |
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| 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. |
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| Keywords: | photonic crystals electrorheological effects band
gaps |
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