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Coupled-mode theory analysis of optical forces between longitudinally shifted periodic waveguides

Sun, Yue; White, Thomas P.; Sukhorukov, Andrey


We develop a coupled-mode theory that describes the dependence of optical gradient forces between side-coupled periodic waveguides on the longitudinal shift between the waveguides. Our approach is fully applicable to waveguides with a strong refractive-index modulation and in the regime of slow-light enhancement of optical forces, associated with the group-velocity reduction at the photonic band edge. Our method enables fast calculation of both the transverse and longitudinal forces for all...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Journal of the Optical Society of America B
DOI: 10.1364/JOSAB.30.000736


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