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Proceedings Paper

Calculation of evanescent field interaction with metallic nanoparticles immobilized on the air holes of solid-core photonic crystal fiber
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Paper Abstract

We report the calculation of the attenuation coefficient of a probing optical mode due to interaction with metallic nanoparticles randomly distributed in the air holes of a solid core photonic crystal fiber (PCF) for SERS-based sensing and detection. The approach employed is an approximation of the solid core PCF with conventional curricular fiber considering a similar total internal reflection mechanism for mode propagation and almost complete concentration of the mode flux in the core of PCF. Losses due to the absorption and radiative scattering of electromagnetic energy by nanoparticles are examined. The analysis demonstrates a critical dependence of the absorption losses approaching the resonant localized surface plasmon's excitation and very fast rise of radiative losses with the increase of nanoparticle size. The physics of proper integral Raman spectroscopy is also discussed.

Paper Details

Date Published: 10 November 2005
PDF: 10 pages
Proc. SPIE 6005, Photonic Crystals and Photonic Crystal Fibers for Sensing Applications, 60050F (10 November 2005); doi: 10.1117/12.630192
Show Author Affiliations
Alexander Raspopin, Stevens Institute of Technology (United States)
Hong-Liang Cui, Stevens Institute of Technology (United States)
Henry Du, Stevens Institute of Technology (United States)


Published in SPIE Proceedings Vol. 6005:
Photonic Crystals and Photonic Crystal Fibers for Sensing Applications
Henry H. Du, Editor(s)

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