Plasmonics and nanophotonics VII
15:35 : Lasing in plasmonic periodic, aperiod and disordered systems
Aaltje Schokker, Femius Koenderink
FOM institute AMOLF (Netherlands) We show lasing in lattices of silver particles in a dye-doped waveguide. Due to the strong scattering strength of silver particles, the band diagram shows an unconventionally large stop gap. We use these large stop-gap systems to investigate a basic question: how much order do we need to obtain lasing?
15:50 : Thermo-Optically Tunable Flat-Lenses at Near Infrared Wavelengths
Jonathan Pugh (1),Jamie Stokes (1),Martin Lopez-Garcia (1),Choon-How Gan (2),Geoff Nash (2),John Rarity (1),Martin Cryan (1)
(1)University of Bristol (United Kingdom) , (2)University of Exeter (United Kingdom) We present a slot-grating flat lens fabricated in thin layers of amorphous silicon-on-aluminum. The structures are designed to collimate the light propagating through the slot at lambda=833nm and 1550nm. The high dependency of refractive index on temperature for amorphous silicon has the potential to enable thermo-optic focusing and steering.
16:05 : 3D manipulation with plasmonic nanotweezers
Johann Berthelot (1),Srdjan Acimovic (2),Mathieu Juan (3),Mark Kreuzer (1),Jan Renger (1),Romain Quidant (1)
(1)ICFO (Spain) , (2)Chalmers University (Spain) , (3)Macquarie University (Australia) We demonstrate in this paper stable optical trapping and accurate 3D manipulation of a single dielectric nanoparticle with a scanning optical near field probe.