Now showing items 1-10 of 350
Multiple slow waves and relevant transverse transmission and confinement in chirped photonic crystals
(OSA Publishing, 2014-09-02)
The dispersion properties of rod-type chirped photonic crystals (PhCs) and non-channeled transmission in the direction of the variation of structural parameters from one cell of such a PhC to another are studied. Two types ...
Voltage contrast X-ray photoelectron spectroscopy reveals graphene-substrate interaction in graphene devices fabricated on the C-and Si-faces of SiC
(American Institute of Physics Inc., 2015)
We report on an X-ray photoelectron spectroscopy (XPS) study of two graphene based devices that were analyzed by imposing a significant current under +3 V bias. The devices were fabricated as graphene layers(s) on hexagonal ...
Guest editorial: Selected papers from the 2nd mediterranean conference on nanophotonics
[No abstract available]
Experimental verification of metamaterial loaded small patch antennas
(Emerald Group Publishing Limited, 2013)
Purpose - Metamaterial unit cells composed of deep subwavelength resonators brought up new aspects to the antenna miniaturization problem. The paper experimentally demonstrates a metamaterial-inspired miniaturization method ...
Optical properties and electronic band structure of topological insulators (on A5 2B6 3 compound based)
(Taylor & Francis, 2013-09-20)
We have performed a first principles study of structural, electronic, and optical properties of rhombohedral Sb2Te3 and Bi 2Te3 compounds using the density functional theory within the local density approximation. The ...
Fano resonances in THz metamaterials composed of continuous metallic wires and split ring resonators
(Optical Society of America, 2014)
We demonstrate theoretically and experimentally that Fano resonances can be obtained in terahertz metamaterials that are composed of periodic continuous metallic wires dressed with periodic split ring resonators. An ...
Nanofabrication and plasma polymerization assisted surface modification of a transducer based on localized surface plasmon resonance of gold nanostructure arrays for biosensor applications
(S P I E - International Society for Optical Engineering, 2012-07-31)
The nanofabrication and surface modification of a transducer based on localized surface plasmon resonance (LSPR) of gold nanostructure arrays for biosensing was studied. We used electron beam lithography for the nanopatterning ...
Electron beam lithography designed silver nano-disks used as label free nano-biosensors based on localized surface plasmon resonance
(Optical Society of America, 2012-01-20)
We present a label-free, optical nano-biosensor based on the Localized Surface Plasmon Resonance (LSPR) that is observed at the metaldielectric interface of silver nano-disk arrays located periodically on a sapphire substrate ...
E-Beam lithography designed substrates for surface enhanced Raman spectroscopy
(Elsevier BV, 2015-06)
Surface Enhanced Raman Spectroscopy (SERS) is a popular method that amplifies weak Raman signals from Raman-active analyte molecules making use of certain specially-prepared metallic surfaces. The main challenge in SERS ...
Experimental realization of a high-contrast grating based broadband quarter-wave plate
(Optical Society of America, 2012-12-03)
Fabrication and experimental characterization of a broadband quarter-wave plate, which is based on two-dimensional and binary silicon high-contrast gratings, are reported. The quarter-wave plate feature is achieved by the ...