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Cavity mode control in side-coupled periodic waveguides: Theory and experiment

Ha, Sangwoo ; Sukhorukov, Andrey A. ; Lavrinenko, Andrei V. ; Kivshar, Yuri S.

Photonics and nanostructures, 2010-09, Vol.8 (4), p.310-317

Tokyo: Elsevier B.V

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Título:
Cavity mode control in side-coupled periodic waveguides: Theory and experiment
Autor: Ha, Sangwoo ; Sukhorukov, Andrey A. ; Lavrinenko, Andrei V. ; Kivshar, Yuri S.
Assuntos: Arrays ; Band theory ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; Holes ; Nanocomposites ; Nanostructure ; Optical elements, devices, and systems ; Optical materials ; Optical waveguides and coupleurs ; Optics ; Photonic bandgap materials ; Photonic crystal ; Photonics ; Physics ; Side-coupled cavities ; Slow-light ; Tuning ; Waveguides
É parte de: Photonics and nanostructures, 2010-09, Vol.8 (4), p.310-317
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: We demonstrate that the modes of coupled cavities created in periodic waveguides can depend critically on the longitudinal shift between the cavities. In the absence of such shift, the modes feature symmetric or antisymmetric profiles, and their frequency splitting generally increases as the cavities are brought closer. We show that the longitudinal shift enables flexible control over the fundamental modes, whose frequency detuning can be reduced down to zero. Our coupled-mode theory analysis reveals an intrinsic link between the mode tuning and the transformation of slow-light dispersion at the photonic band-edge. We illustrate our approach through numerical modeling of cavities created in arrays of dielectric rods, and confirm our predictions with experimental observations.
Editor: Tokyo: Elsevier B.V
Idioma: Inglês

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Cavity mode control in side-coupled periodic waveguides: Theory and experiment

Ha, Sangwoo ; Sukhorukov, Andrey A. ; Lavrinenko, Andrei V. ; Kivshar, Yuri S.

Tokyo: Elsevier B.V

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