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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/36552

Title: Photonic band gaps induced by submicron acoustic plate waves in dielectric slab waveguides
Authors: J. C. Hsu;C. H. Lin;Y. C. Ku;T. R. Lin
林資榕
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
國立臺灣海洋大學:機械與機電工程學系
Date: 2013-10
Issue Date: 2015-05-19T06:29:42Z
Publisher: Optics Letters
Abstract: We generate photonic bandgaps (PBGs) in dielectric slab waveguides by exciting their acoustic plate eigenmodes of submicron wavelength. We investigate the optical forbidden bands below the light line where the slab interfaces and index of refraction are periodically modulated by the acoustic fields. Results show that multiple scattering through the enhanced periodic acousto-optic (AO) interaction opens Bragg PBGs. A tunable bandgap width and transmittance are achieved. Transmitted optical waves are found to incur strong nonlinear modulation through AO interaction by a multiphonon exchange mechanism. The applications include tunable optomechanical and AO devices.
Relation: 38(20), pp.4050-4053
URI: http://ntour.ntou.edu.tw/handle/987654321/36552
Appears in Collections:[機械與機電工程學系] 期刊論文

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