Furthermore, it is found out that negative refractive index, permeability and permittivity are dependent upon the width of the wire and the gap between resonators at near-infrared range. This work will be helpful for the fabrication and design of double negative metamaterials structure having negative permeability, permittivity and...
Spectroscopic characterization of highly doped ZnO films grown by atomic-layer deposition for three-dimensional infrared metamaterials. Opt. Mater. Express 1, 883–889 (2011). Article Google Scholar Pradhan, A. K. et al. Extreme tunability in aluminum doped zinc oxide plasmonic materials for near...
Metasurfaces have given wavefront sorting functionality on CCDs. OAM has been sorted depending on the number of topological charges by metasurface-integrated CCDs113,114. Doublet TiO2metasurfaces have been designed for the metasurface-integrated CCDs for OAM sorters, which sort incident OAM light ...
The schematic diagram of the proposed dual-band near-infrared plasmonic absorber is illustrated in Fig. 3. The difference between this structure and the single-band plasmonic absorber in Fig. 1 is that a new rectangle nanoresonator is introduced to be side-coupled with the air groove. The groo...
Double-network hydrogel enhanced by SS31-loaded mesoporous polydopamine nanoparticles: Symphonic collaboration of near-infrared photothermal antibacterial effect and mitochondrial maintenance for full-thickness wound healing in diabetes mellitus Author links open overlay panelQing-Song Deng a b c 1, Yuan ...
The topic of active metamaterials and metafilm has recently attracted significant attention20,21,22,23,24,25,26 and active absorption tuning in the mid-infrared has been accomplished with graphene-based metasurface devices21,22,23,24. Up to now the changes in the magnitude of the absorption per...
In order to avoid this inconvenience when using the negative aperture, other methods have been investigated and most of them were inspired by the work done at optical and near-infrared wavelength on Apertureless Near-field Scanning Optical Microscopy abbreviated to ANSOM. ...
forwardandbackwardpropagatinglinearlypolarizedwavebynumericalsimulationinnear-infraredband.Diferencein transmissionefficiencyoftheoptimizedstructurebetweenthesamepolarizedwavesincidentfromoppositedirectionscan reachamaximumatthecommunicationwavelength(1.55 m).Moreover,thesimulationresultsofthisstructurealso exhibitstrongopticalact...
Abstract All-dielectric nanostructures have recently opened exciting opportunities for functional nanophotonics, owing to their strong optical resonances along with low material loss in the near-infrared range. Pushing these concepts to the visible range is hindered by their larger absorption coefficient, ...
It may be found naturally at infrared and visible frequencies, such as noble metals, some semiconductors, and polar dielectrics near their plasma frequency23. Alternatively, it can be fabricated artificially at the desired frequency by embedding suitable inclusions in a host medium24. In the ...