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Observation of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides

Ha, Sangwoo; Sukhorukov, Andrey A.; Lavrinenko, Andrei V.; Shadrivov, Ilya V.; Powell, David A.; Kivshar, Yuri S.

Description

We report the experimental observation of tunneling of slow and fast electromagnetic modes in coupled periodic waveguides shifted longitudinally by half of modulation period. According to the symmetry analysis, such a coupler supports two electromagnetic modes with exactly matched slow or fast group velocities but different phase velocities for frequencies close to the edge of the photonic band. We confirm the predicted properties of the modes by directly extracting their dispersion and group...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/15504
Source: Applied Physics Letters
DOI: 10.1063/1.3553785

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