Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/5960
Title: Slow-light regime and critical coupling in highly multimode corrugated waveguides
Authors: Kurt, Hamza
Benisty, H.
Melo, T.
Knayam, O.
Cambournae, C.
Issue Date: 2008
Publisher: Optical Society of America (OSA)
Abstract: Large and periodically corrugated optical waveguide structures are shown to possess specific modal regimes of slow-light propagation that are easily attainable. The very multimode nature of the coupling is studied by employing coupled-mode theory and the plane-wave expansion method. Given a large enough light cone, associated with a surrounding medium with low enough refractive index, we notably identify a critical slowdown regime with an interesting bandwidth-slowdown product. Essential features of these original systems are further explored: the nature of the coupled modes, the role of gain, symmetry effects, polarization, and relation with photonic-crystal systems. Practical systems are introduced using finite-difference time-domain methods, which provides first-order rules for the use of the above phenomena and their implementation in devices. © 2008 Optical Society of America.
URI: https://doi.org/10.1364/JOSAB.25.0000C1
https://hdl.handle.net/20.500.11851/5960
ISSN: 0740-3224
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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