# High resonant reflection of a confined free space beam by a high contrast segmented waveguide

Bonnet 2003: A deeply corrugated, high-contrast slab waveguide reflects a focused beam resonantly under normal incidence, something a weak grating cannot do…

Canonical: https://mcgrating.com/publications/bonnet-2003-high-resonant-reflection-segmented-waveguide.html


E. Bonnet, X. Letartre, A. Cachard, A.V. Tishchenko, O. Parriaux

E. Bonnet, X. Letartre, A. Cachard, A.V. Tishchenko and O. Parriaux, “High resonant reflection of a confined free space beam by a high contrast segmented waveguide”, Optical and Quantum Electronics **35**, 1025-1036 (2003). [https://doi.org/10.1023/a:1026075614215](https://doi.org/10.1023/a:1026075614215)

A deeply corrugated, high-contrast slab waveguide reflects a *focused* beam resonantly under normal incidence, something a weak grating cannot do because the coupled wave would leave the beam before interfering with it. The paper explains the effect by a very strong intra-guide coupling that keeps the coupled wave localised under the beam, and relates the coupled-mode picture to the photonic-crystal description of the same structure.

**Implemented in**: [Modal Collinear](https://mcgrating.com/products.html#modal-collinear)

**Cited on**: [Modes interference in high-contrast gratings](https://mcgrating.com/modes-interference.html)

**Bibliography**: [Modes-interference reference [2]](https://mcgrating.com/modes-interference.html#mi-ref-2)

**Full text**: [High resonant reflection of a confined free space beam by a high contrast segmented waveguide](https://mcgrating.com/files/modesint/ref02.pdf) (PDF, 208 KB)

© 2003 Springer Science and Business Media LLC. This copy is hosted for the convenience of MC Grating users; the version of record is the publisher's, at the DOI above.

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