Hybrid nanoparticle–microcavity-based plasmonic nanosensors with improved detection resolution and extended remote-sensing ability

Markus A. Schmidt, Dang Yuan Lei, Lothar Wondraczek, Virginie Nazabal & Stefan A. Maier

 http://www.nature.com/ncomms/journal/v3/n10/full/ncomms2109.html

Broad plasmon resonance of gold nanoparticles is coupled to narrow resonance of optical microcavity, resulting in fine structure of plasmon resonance.  This would enhance the sensing ability of nanoparticles.