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Chip-size plasmonic spectropolarimeters for simultaneous polarization state and wavelength determination have been designed and experimentally demonstrated. The proof-of-concept 96-μm-diameter spectropolarimeter operating in the wavelength range of 750–950 nm exhibits expected polarization selectivity and high angular dispersion (0.0133 °/nm).
We present an approach to analyse near-field effects on nanostructured gold films by finite element simulations. The studied samples are formed by fabricating gold films near the percolation threshold and then applying laser damage. Resulting samples have complicated structures, which then was captured using scanning transmission electron microscopy (STEM) and the obtained dark field images are used...
Optical metasurfaces, being the two-dimensional analog of optical metamaterials, have in recent years gained considerable attention due to the possibility to control light on a subwavelength scale in unforeseen ways and the relative ease of fabrication, thus representing viable components for compact real-world applications. In this talk, we will discuss a certain type of plasmonic (i.e., metal-based)...
Surface plasmon-polaritons are a possible solution for on-chip transportation and manipulation of information. Although there are several possibilities for designing the plasmonic waveguides, the two major caveats for all of them are the coupling to/from external sources and the losses they exhibit.
Surface plasmon polaritons (SPPs) are quasi-two-dimensional electromagnetic excitations, propagating along a dielectric-metal interface and having the field components decaying exponentially into both neighboring media. The field of a plane SPP comprises a magnetic field component, which is parallel to the interface plane and perpendicular to the SPP propagation direction, and two electric...
Scattering of surface plasmon polaritons (SPPs) propagating along a metal film surface with random roughness is considered with the emphasis on the elastic (in-plane) SPP scattering driven by the resonantly excited SPP. The usage of scanning near-field optical microscopy (SNOM) for near-field imaging of SPP fields is discussed in detail, establishing a firm basis for the interpretation of experimentally...
We demonstrate the design, fabrication and experimental characterization of longrange dielectric-loaded surface plasmon-polariton waveguides (LR-DLSPPWs) that are compatible with complementary metal-oxide semiconductor (CMOS) technology. The demonstrated waveguides feature good mode confinement together with long propagation at telecom wavelengths.
We demonstrate the design, fabrication and experimental characterization of long-range dielectric-loaded surface plasmon-polariton waveguides (LR-DLSPPWs) that are compatible with complementary metal-oxide semiconductor (CMOS) technology. The demonstrated waveguides feature good mode confinement together with long propagation at telecom wavelengths.
Optical nano-antennae are one of the possible solutions for coupling free-space radiation into subwavelength waveguides. Other possibilities include, among others, grating couplers and end-fire end couplers. Our efforts were concentrated on nano-antennae used for coupling IR light in the telecom range from an optical fibre to a plasmonic slot waveguide. This type of coupling is still difficult to...
Plasmonic metasurfaces, i.e., nm-thin surface metal nanostructures with subwavelength-sized lattice units, that are composed of gap plasmon resonators and used for controlling reflected light are overviewed, emphasizing the unique possibility to simultaneously and independently control the reflection direction of orthogonal linear polarizations as well as to realize efficient unidirectional polarization-controlled...
Plasmonic waveguides supporting gap surface plasmons (GSPs) localized in a dielectric spacer between metal films are investigated numerically and the waveguiding properties at telecommunication wavelengths are presented. Especially, we emphasize that the mode confinement can advantageously be controlled by the waveguide width and the dielectric spacer thickness and thus allows for straightforward...
We report simulation, fabrication and, for the first time, full amplitude-phase near-field optical characterization in telecom range of the compact and efficient plasmonic nanoantenna based couplers. Near-field data allowed characterizing the subwavelength slot waveguide's propagation losses and effective mode index that correspond well to the simulated ones.
Power consumption and bandwidth of electronics appear as the main set of technology barriers in next-generation Data Center and High-Performance Computing (HPC) environments. The limited capacity and pitch lane of electrically wired interconnects require the development of new disruptive technologies to cope with the massive amount of data moving across all hierarchical communication levels, namely...
The field of data communications and short-range interconnects in computing and High Performance Data Centers (HPCs) and Computing Systems has been up to date almost exclusively dominated by electronics, which have formed the main technological solution for the interconnection of many core/board/rack modules. In FP7-PLATON project we are investigating novel hybrid Silicon-Plasmonics components/subsystems...
Main configurations of plasmonic waveguides are overviewed discussing fundamental challenges in trading between the lateral mode confinement and propagation losses. Recent developments and promising opportunities for practical applications of plasmonic waveguides are also outlined.
Variously shaped structures formed with a 100-nm-period square lattice of gold nanoparticles placed on a gold film are shown to possess an effective refractive index of about 1.08 for SPPs propagating through them.
We present a large-scale compatible fabrication method for channel and wedge plasmon polariton waveguides. Optical characterization of fabricated devices using SNOM shows sub-wavelength confinement and propagation lengths in the hundreds of microns.
Subwavelength waveguides, resonators and antennas utilizing surface plasmon polariton modes are considered, reviewing recent experimental investigations and demonstrating first examples of ultracompact plasmonic components.
Propagation of long-range surface plasmon polaritons in different waveguide components based on nm-thin and ??m-wide metal strips and symmetrical sub-wavelength metal nanowires embedded in a uniform dielectric is experimentally studied at telecom wavelengths.
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