Group-index and resonant field enhancement in a symmetric double-sided grated waveguide

Alatas, Husin and Hoekstra, Hugo J.W.M. and Iskandar, Alexander A. and Tjia, May-On (2011) Group-index and resonant field enhancement in a symmetric double-sided grated waveguide. Journal of the Optical Society of America A: Optics and image science, 28 (6). pp. 1197-1203. ISSN 0740-3232

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Abstract:	A numerical study has been carried out by means of the Green’s function method to explore possible performance improvements of a simple grated waveguide (GWg) by the variations of its grated structure. It is shown that a GWg featuring symmetric two-sided grated structure of 16 teeth with a 60nm groove depth and having a symmetric refractive index profile with a relatively large contrast between the grated and ungrated layers is capable of delivering largely improved device performance compared to that achieved previously with a one-sided grating of 40nm groove depth and asymmetric index profile.
Item Type:	Article
Copyright:	© 2011 Optical Society of America
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Integrated Optical MicroSystems (IOMS)
Link to this item:	http://purl.utwente.nl/publications/79453
Official URL:	http://dx.doi.org/10.1364/JOSAA.28.001197
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