Simultaneous large band gaps and localization of electromagnetic and elastic waves in defect-free quasicrystals.
Simultaneous large band gaps and localization of electromagnetic and elastic waves in defect-free quasicrystals.
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DOI：
10.1364/oe.24.007951
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发表时间：
2016-04
期刊：
影响因子：
3.8
通讯作者：
Tianbao Yu;Zhong Wang;Wenxing Liu;Tongbiao Wang;N. Liu;Q. Liao
中科院分区：
文献类型：
--
作者：
Tianbao Yu;Zhong Wang;Wenxing Liu;Tongbiao Wang;N. Liu;Q. Liao
We report numerically large and complete photonic and phononic band gaps that simultaneously exist in eight-fold phoxonic quasicrystals (PhXQCs). PhXQCs can possess simultaneous photonic and phononic band gaps over a wide range of geometric parameters. Abundant localized modes can be achieved in defect-free PhXQCs for all photonic and phononic polarizations. These defect-free localized modes exhibit multiform spatial distributions and can confine simultaneously electromagnetic and elastic waves in a large area, thereby providing rich selectivity and enlarging the interaction space of optical and elastic waves. The simulated results based on finite element method show that quasiperiodic structures formed of both solid rods in air and holes in solid materials can simultaneously confine and tailor electromagnetic and elastic waves; these structures showed advantages over the periodic counterparts.
