263 research outputs found
Transparent conducting oxides for active hybrid metamaterial devices
We present here a study of the combined nonlinear response of plasmonic antennaâtransparent conducting oxide hybrids for activation of metamaterial devices. Nanoantenna layers consisting of randomly positioned gold nanodisk dimers are fabricated using hole-mask lithography. The nanoantenna layers are covered with a 20 nm thin layer of transparent conducting oxide (TCO). We investigate the response of atomic layer deposited aluminum-doped zinc oxide (AZO) next to indiumâtin oxide (ITO) produced using sputter coating. We show that our results are in agreement with the hypothesis of fast electron-mediated cooling, facilitated by the Ohmic interface between the gold nanodisks and the TCO substrate, which appears a universal mechanism for providing a new hybrid functionality to active metamaterial device
Pseudo-classical theory for fidelity of nearly resonant quantum rotors
Using a semiclassical ansatz we analytically predict for the fidelity of
delta-kicked rotors the occurrence of revivals and the disappearance of
intermediate revival peaks arising from the breaking of a symmetry in the
initial conditions. A numerical verification of the predicted effects is given
and experimental ramifications are discussed.Comment: Shortened and improved versio
Surface-enhanced infrared spectroscopy using ultra-compact indium tin oxide (ITO) sensor arrays
Reduced cross section and strong plasmon confinement allows ITO antennas to be integrated at extremely high densities with no loss in performance due to long-range transverse interactions and to hold promise for extremely sub-wavelength SEIRS
Ultrafast Plasmonic Nanoantenna-ITO Hybrid Switches
We present here a new type of device using nonlinear hybrid antenna-semiconductor (ITO) interaction. We observe a picosecond transient response from the antenna that cannot be explained
by either pure ITO or antenna nonlinearities independently. We study the dependence of the hybrid interaction on several experimental parameters, including the polarization of excitation and
detection
Ultrafast plasmonics using transparent conductive oxide hybrids in the epsilon-near-zero regime
Decreasing Global Transcript Levels over Time Suggest that Phytoplasma Cells Enter Stationary Phase during Plant and Insect Colonization
Spatial Modulation Microscopy for Real-Time Imaging of Plasmonic Nanoparticles and Cells
Spatial modulation microscopy is a technique originally developed for
quantitative spectroscopy of individual nano-objects. Here, a parallel
implementation of the spatial modulation microscopy technique is demonstrated
based on a line detector capable of demodulation at kHz frequencies. The
capabilities of the imaging system are shown using an array of plasmonic
nanoantennas and dendritic cells incubated with gold nanoparticles.Comment: 3 pages, 4 figure
OmZnT1 and OmFET, two metal transporters from the metal-tolerant strain Zn of the ericoid mycorrhizal fungus Oidiodendron maius, confer zinc tolerance in yeast
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