Hyperbolic metamaterials (HMMs) are artificial nanocomposite structures with unique electromagnetic responses, which originated from their dispersion relationship featured opposite signs of dielectric permittivity in orthogonal directions. During the last several years, they are the central subjects of the intensive, competitive research. Metamaterials with hyperbolic dispersion relationship, which experimentally can be realized in two configurations: alternated metal/dielectric multi-nanolayers an array of silver/gold nanowires embedded into the porous alumina membrane, show the number of unusual properties.They possess broad-band singularity in the density of photonic states and enable imaging with deep sub-wavelength resolution, control of spontaneous emission, and dramatic reduction of reflectance. Particularly intriguing are activeMMs withhyperbolicdispersion, which physical analogies extend to cosmological Big Bang and unusual time-space relations.Although all these HMMs properties were theoretically predicted and partially experimentally observed, the implication of the surface states of HMMs remains largely unexplored. With the further miniaturization of functional devices, such as MEMS/NEMS (micro-, nano-electromechanical systems), the problem of �stiction�, adhesion between moving parts become a significant one, calling for new ways to combat unwanted interactions. Thus, the ability to engineer the dispersion interactions will play a key role in surface and interfacial phenomena, such as wetting, adhesion, electrochemistry, sintering, catalysis, and surface sensing.In the talk, we will show our recent results on the studies of the wetting with gold films and hyperbolic metamaterials, their electrochemical properties and the direct AFM probing of the force and energy landscape (Force-Distance curve) in the system: AFM probe � specimen's surface.

Surface and interfacial phenomena of hyperbolic metamaterials and metallic films

247th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.