OREGON STATE UNIVERSITY

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Enhanced localized surface plasmonic resonance in dielectric photonic band gap structures: Fabry-Perot nanocavity and photonic crystal slot waveguides

TitleEnhanced localized surface plasmonic resonance in dielectric photonic band gap structures: Fabry-Perot nanocavity and photonic crystal slot waveguides
Publication TypeConference Paper
Year of Publication2013
AuthorsHasan, D., and A. X. Wang
Secondary AuthorsAdibi, A., and S-Y. Lin
Conference NameSPIE OPTOPhotonic and Phononic Properties of Engineered Nanostructures III
Pagination863203 - 863203-10
Date Published02/2013
PublisherSPIE
Conference LocationSan Francisco, California
Abstract

We describe approaches to enhance localized surface plasmons by placing metallic nanoparticles into two different structures: (i) Fabry-Perot (F-P) resonant cavities, and (ii) Photonic crystal slot waveguides. Through synchronization of the plasmonic and resonant modes, electric field at the surface of the nanoparticles is enhanced by a factor of 4~20 compared with the nanoparticles in free space, depending on the device structure and coupling mechanism. We report key differences between the F-P enhancement and the slow-light enhancement to the plasmonic effect in details. This theoretical investigation reveals a new method to strengthen plasmonic resonances and suggests that the sensitivity of existing plasmonic sensors can be further improved if they are integrated with dielectric resonant photonic devices.

DOI10.1117/12.2005549