Journal
OPTICS EXPRESS
Volume 24, Issue 25, Pages 28337-28352Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.028337
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Funding
- National Science Foundation (NSF) [NSF-SNM-1449397]
- Directorate For Engineering [1449397] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys [1449397] Funding Source: National Science Foundation
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We investigate the feasibility of CMOS-compatible optical structures to develop novel integrated spectroscopy systems. We show that local field enhancement is achievable utilizing dimers of plasmonic nanospheres that can be assembled from colloidal solutions on top of a CMOS-compatible optical waveguide. The resonant dimer nanoantennas are excited by modes guided in the integrated silicon nitride waveguide. Simulations show that 100-fold electric field enhancement builds up in the dimer gap as compared to the waveguide evanescent field amplitude at the same location. We investigate how the field enhancement depends on dimer location, orientation, distance and excited waveguide mode. (C) 2016 Optical Society of America
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