A bottom-up approach towards metamaterials and plasmonics V
14:00 Invited talk : Multiscale conformal patterns transfer for nano-, meta-, micro- and beyond
Kristof Lodewijks, Vladimir Miljkovic, Ines Massiot, Addis Mekonnen, Ruggero Verre, Eva Olsson, Alexandre Dmitriev
Chalmers University of Technology (Sweden) Here we establish the method for seamless transfer of principally any lithographic top-down or bottom-up pattern of potentially high complexity from a parent flat substrate onto essentially any kind of surface. We will demonstrate how nano- or microscale patterns, occupying macroscopic surface areas, can be transferred with extremely high conformity onto a large variety of surfaces: commercial and research-grade glass, polymers, plastic, paper or polycrystalline silicon.
14:20 Invited talk : Plasmonics enabled by DNA Nanotechnology
Anton Kuzyk (1),Robert Schreiber (2),Tim Liedl (3),Alexander Govorov (4),Na Liu (5)
(1)MPI for Intelligent Systems (Germany) , (2)Clarendon Laboratory-University of Oxford (United Kingdom) , (3)Ludwig Maximilians Universitat (Germany) , (4)Ohio University (USA) , (5)Max Planck Institute for Intelligent Systems (Germany) With the invention of the DNA origami technique in 2006 DNA Nanotechnology has reached a new level of sophistication. DNA can now be used to arrange molecules and other nanoscale components, e.g., protein and nanoparticles, with nanometer precision into almost arbitrary geometries. Moreover, dynamic DNA Nanotechnology allows making such assemblies reconfigurable and dynamically controlled in time. Here we demonstrate how DNA nanotechnology can be used for self-assembly of plasmonic nanostructures with chemically or light regulated optical responses.
14:40 Invited talk : Nonmetallic Metamaterial: Gyroidal Titanium Nitride
Srujana Prayakarao (1),S. Robbins (2),N. Kinsey (3),A. Boltasseva (3),V. M. Shalaev (3),U. B. Wiesner (2),C. E. Bonner (1),R. Hussain (1),N. Noginova (1),M. A. Noginov (1)
(1)Norfolk State University (USA) , (2)Cornell University (USA) , (3)Purdue University (USA) We have synthesized gyroidal TiN metamaterials, studied their optical properties, compared them with the optical properties of the TiN thin films. The plasma frequency, w p, and the corresponding free carrier concentration, N, in the gyroid samples were found to be much lower than those in thin films. This makes the studied TiN gyroid a poor plasmonic material. Nevertheless, TiN gyroidal samples have demonstrated bright rainbow pattern in the optical microscopy reflectance, attributed to different orientations of the gyroid domains.
15:00 Invited talk : 3D Optical Metamaterials by Microfluidic Evaporation
Alexandre Baron (1),Antonio Iazzolino (2),Kevin Ehrhardt (2),Jean-Baptiste Salmon (2),Ashod Aradian (2),Vasyl Kravets (3),Alexander Grigorenko (3),Jacques Leng (2),Aurelie Le Beulze (2),Mona Treguer-Delapierre (2),Miguel Correa-Duarte (4),Philippe Barois (2)
(1)Duke University (USA) , (2)University of Bordeaux (France) , (3)University of Manchester (United Kingdom) , (4)Universidad de Vigo (Spain) We present homogeneous optical metamaterials assembled via a microfluidic evaporation technique which enables a high degree of bulkiness with a depth-to-particle-size ratio that exceeds 600, thus surpassing state-of-the-art realizations by one order of magnitude.
15:20 Invited talk : Photovoltaic applications of optical haze and perfect absorbers made by self-aggregated nanowire structures
Kyuyoung Bae, Gumin Kang, Kyoungsik Kim
Yonsei University (Korea) We fabricated the nanostructured film which is composed of self-aggregated nanowires. Since the film has high transmission haze and transparency, it was applied to photovoltaic device for controlling the light-propagation in the active layer. Overall efficiency of the device with the haze film was improved by 5 percent compared to the bare device. We also fabricated the perfect absorbers by depositing Au on self-aggregated nanowires. The perfect absorbers exhibit a reflectivity of 1 percent over a visible range.
15:40 Invited talk : Cage template synthesis and cage directed assembly of gold nanoparticles
Wei Zhang, Won Park
University of Colorado (USA) We present template synthesis of gold nanoparticles (AuNPs) using cage molecules and also the directed assembly of AuNPs by cage molecules. Shape persistent cage molecules with internal functional groups serve as effective template for highly monodispersed AuNP synthesis. Cage molecules further functionalized on the outside are then used to direct the assembly of AuNPs into predetermined geometry. Cage-AuNP complex offers an excellent platform for programmable self-assembly.