Piezoelectric-induced polariton coupling in a superlattice

被引:24
|
作者
Huang, CP [1 ]
Zhu, YY
机构
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ Technol, Dept Appl Phys, Nanjing 210009, Peoples R China
关键词
D O I
10.1103/PhysRevLett.94.117401
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Propagation of electromagnetic waves in a piezoelectric superlattice is studied. Because of the piezoelectric effect, a coupling between two orthogonally polarized electromagnetic waves is induced by the superlattice vibration. As a consequence of the strong coupling, two types of polariton modes are found: one is supported in the band gap while the other prohibited. This unusual coupling effect is not present in classical lattices.
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页数:4
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