Efficient slow-light coupling in a photonic crystal waveguide without transition region

T. P. White; L. C. Botten; C. Martijn de Sterke; K. B. Dossou; R. C. McPhedran

doi:10.1364/OL.33.002644

Efficient slow-light coupling in a photonic crystal waveguide without transition region

T. P. White, L. C. Botten, C. Martijn de Sterke, K. B. Dossou, R. C. McPhedran

Research output: Contribution to journal › Article › peer-review

Abstract

We consider the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide. Remarkably, the coupling into this slow mode, which has a group index n(g) > 1000, can be essentially perfect without any transition region. We show that this efficient coupling occurs thanks to an evanescent mode in the slow medium, which has appreciable amplitude and helps satisfy the boundary conditions but does not transport any energy. (C) 2008 Optical Society of America

Original language	English
Pages (from-to)	2644-2646
Number of pages	3
Journal	Optics Letters
Volume	33
Issue number	22
DOIs	https://doi.org/10.1364/OL.33.002644
Publication status	Published - 15 Nov 2008

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10.1364/OL.33.002644

White2008OpticsLettersEfficientSlowLight
(c) 2008 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at http://www.opticsinfobase.org
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abstract = "We consider the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide. Remarkably, the coupling into this slow mode, which has a group index n(g) > 1000, can be essentially perfect without any transition region. We show that this efficient coupling occurs thanks to an evanescent mode in the slow medium, which has appreciable amplitude and helps satisfy the boundary conditions but does not transport any energy. (C) 2008 Optical Society of America",

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AU - Botten, L. C.

AU - de Sterke, C. Martijn

AU - Dossou, K. B.

AU - McPhedran, R. C.

PY - 2008/11/15

Y1 - 2008/11/15

N2 - We consider the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide. Remarkably, the coupling into this slow mode, which has a group index n(g) > 1000, can be essentially perfect without any transition region. We show that this efficient coupling occurs thanks to an evanescent mode in the slow medium, which has appreciable amplitude and helps satisfy the boundary conditions but does not transport any energy. (C) 2008 Optical Society of America

AB - We consider the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide. Remarkably, the coupling into this slow mode, which has a group index n(g) > 1000, can be essentially perfect without any transition region. We show that this efficient coupling occurs thanks to an evanescent mode in the slow medium, which has appreciable amplitude and helps satisfy the boundary conditions but does not transport any energy. (C) 2008 Optical Society of America

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DO - 10.1364/OL.33.002644

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VL - 33

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JO - Optics Letters

JF - Optics Letters

IS - 22

ER -

Efficient slow-light coupling in a photonic crystal waveguide without transition region

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