Tongbiao Wang

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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(More)
Connecting inner and surface propagation field in photonic crystal waveguides (PCWs) with an efficient method is critical to achieve flexible designs and applications in photonic integrated circuits. This letter realizes highly efficient coupling between inner and surface PCWs by modifying the structures of waveguides and interface. The aim of the(More)
We report the properties of dual phononic-photonic band gaps and localized modes of eightfold lithium niobate (LiNbO<sub>3</sub>) phoxonic quasicrystals (PhXQCs). Complete and large phoxonic band gaps are easily achieved despite the low refractive index of LiNbO<sub>3</sub> substrate. Point defect intentionally introduced can form localized modes within(More)
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