Piezoelectric-induced polariton coupling in a superlattice |
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Authors: | Huang Cheng-ping Zhu Yong-yuan |
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Affiliation: | National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China. |
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Abstract: | 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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