Creating high density nanoantenna arrays via plasmon enhanced particle-cavity (PEP-C) architectures.
We propose a new solution for high hot-spot density creation by coupling a particle and a cavity in a structure dubbed a plasmonic enhanced particle-cavity (PEP-C) antenna. In comparison to analogous particle-based dimer antenna structures, the PEP-C allows both a higher maximum field and an order-of-magnitude higher hot-spot density. In addition, the hot-spots of the PEP-C antenna can be precisely controlled, resulting in increased reliability. We elucidate the photonic characteristics of the PEP-C antenna and show tuning and optimization through choice of geometric parameters. These properties make the PEP-C antenna an excellent candidate for plasmonic-based biomolecular sensors.
Ross
Benjamin M
BM
Biomolecular Nanotechnology Center, Department of Bioengineering, University of California-Berkeley, Berkeley, CA 94720, USA.
Lee
Luke P
LP
D015374:Biosensing Techniques / Q000295:instrumentation*; D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D020349:Surface Plasmon Resonance / Q000295:instrumentation*