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Applied Nanophotonics, Liquid Crystals and Biomedical Optics

Prof. Ibrahim Abdulhalim Research Group

Metal grating on a substrate nanostructure for sensor applications

A. Karabchevsky, O. Krasnykov, I. Abdulhalim, B. Hadad, A. Goldner, M. Auslender,S. Hava

Extraordinary optical transmission via periodic array of sub-wavelength slits in a metal layer on a dielectric substrate is revisited for sensing applications. Numerical case studies using an in-house software tool showed two peaks of enhanced transmission, one being very sensitive to the ambient index and another to the substrate index. Based on this, we designed and realized an optical sensor with sensitivity of the order of 400 nm/RIU.

Publication language English
Pages 170-175
Volume 7
Issue number 4
Publication status Published - 01.12.2009

Keywords

Diffraction gratings
Extraordinary optical transmission
Optical sensors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Hardware and Architecture
Electrical and Electronic Engineering