Giant positive and negative Goos-Hänchen shift on dielectric gratings caused by guided mode resonance | Zendy

Rui Yang | Zendy; Wenkan Zhu | Zendy; Jingjing Li | Zendy

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Giant positive and negative Goos-Hänchen shift on dielectric gratings caused by guided mode resonance

Author(s) -

Rui Yang,

Wenkan Zhu,

Jingjing Li

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.002043

Subject(s) - optics , guided mode resonance , resonance (particle physics) , dielectric , materials science , metamaterial , grating , optoelectronics , ohmic contact , wavelength , diffraction grating , physics , atomic physics , nanotechnology , layer (electronics)

Giant positive and negative Goos-Hänchen shift more than 5000 times of the operating wavelength is observed when a beam is totally reflected from a substrate decorated by a dielectric grating. Different to the former studies where Goos-Hänchen shift is related to metamaterials or plasmonic materials with ohmic loss, here the giant shift is realized with unity reflectance without the loss. This is extremely advantageous for sensor applications. The Goos-Hänchen shift exhibits a strong resonant feature at the frequency of guided mode resonance, and is associated to the energy flow carried by the guided mode.

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