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Integration of short gold nanoparticles chain on SOI waveguide

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arxiv 1112.0175 v1 pith:UHRVDZ7K submitted 2011-12-01 physics.optics

Integration of short gold nanoparticles chain on SOI waveguide

classification physics.optics
keywords waveguidenanoparticlechainsintegrationnanoparticlesshorttransmissionalmost
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this letter, we demonstrate the integration of short metal nanoparticle chains (L \approx 700nm) supporting localized surface plasmons in Silicon On Insulator (SOI) waveguides at telecom wavelengths. Nanoparticles are deposited on the waveguide top and excited through the evanescent field of the TE waveguide modes. Finite difference time domain calculations and waveguide transmission measurements reveal that almost all the TE mode energy can be transferred to nanoparticle chains at resonance. It is also shown that the transmission level is very sensitive to the nanoparticle environment, thus opening the way towards ultra-compact sensors in guided optics on SOI.

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