Nonlinear optics, nanophotonics and plasmonics - 1Virtual room: CMC - 1
|Tuesday, May 26|
NL-1-26-1 / Spectral and spatiotemporal-resolved near-field properties of coupled plasmonic nanostructures
* Quan Sun, Hokkaido University, Japan
Hiroaki Misawa, Hokkaido University
The near field and dynamics of surface plasmons are probed by photoemission electron microscopy (PEEM). In particular, we reveal plasmon interaction in strong coupling region and observe ultrafast dynamics of plasmons in the coupled plasmonic systems.
NL-1-26-2 / Optical beam steering for LIDAR via tunable plasmonic metasurfaces
* Antonino Cala' Lesina, University of Ottawa, Canada
Dominic Goodwill, Huawei Technologies Canada
Eric Bernier, Huawei Technologies Canada
Lora Ramunno, University of Ottawa
Pierre Berini, University of Ottawa
Optical phased arrays can steer a beam without mechanical rotation, thus achieving a very rapid scanning rate. We discuss a novel plasmonic nanostructure and demonstrate its use in a reflectarray for beam steering via electro-optical simulations.
NL-1-26-3 / Structured Light-Matter Interactions for Ultra-Precise Particle Localization
* Peter Banzer, Max Planck Isntitute for the Science of Light, Germany
We utilize highly confined and structured landscapes of the electromagnetic field to selectively excite individual nanoparticles. The position of the nanoparticle with respect to the excitation field is encoded in the asymmetry of the emission pattern measured in the far-field. We show that the particle can be localized with ultra-high precision by simply measuring the directivity of the signal. The scheme paves the way for the development of novel nano-metrology schemes, precise and fast stabilization of positioning stages, nano-scale light-routing and more.
NL-1-26-4 / Nonlinear antennas with tunable radiation patterns
* Lin Cheng, Department of Physics, University of Ottawa, Canada
Rasoul Alaee, Department of Physics, University of Ottawa
Akbar Safari, Department of Physics, University of Ottawa
Mohammad Karimi, Department of Physics, University of Ottawa
Robert W. Boyd, Department of Physics, University of Ottawa
We study the optical response of nonlinear antennas made of indium tin oxide (ITO). In particular, we show that the radiation pattern of the antennas can be modified using the extremely large nonlinear response of ITO.