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In this paper we present a multi-flow transmitter developed within the EU project PANTHER and we evaluate its first proof-of-concept demonstration of up to two single- or dual-polarization optical flows with selectable wavelength, m-QAM modulation format, number of carriers and destination. Multiflow operation is realized by two polymer boards allowing optical carrier management and optional polarization...
Quantum transport theory is applied to obtain formula for the irreversible transfer of electronic excited state (exciton), or a charge carrier, between two quasi-zero-dimensional nanostructures. The electron-phonon interaction is included in a non-perturbative way. The formula is expected to be suitable for analysis of experimental data on exciton or charge transfer. We emphasize the use of the transfer...
In this paper, we present the optical properties such as absorption, luminescence and IR transmission spectra of 2-styrylquinoline containing polymers thin films. We notice that the extension of the polymer chain in these compounds causes the change their spectroscopic and physical properties.
In the past decade, rare-earth-doped and also transition-metal-doped dielectric waveguides have emerged as highly efficient laser devices. This paper reviews the results in Ti:Sapphire, polymer, sesquioxides, amorphous aluminium oxide, and potassium double tungstates that have recently been obtained in our research group, partly in collaboration with other research groups.
Polymer micro- and nanostructures with various geometries can be written onto a transparent substrate by the technique of two-photon polymerization by a Ti-sapphire femtosecond-laser, which is focused into a liquid acrylate based resin containing a photo-initiator. The microstructures can be employed either as three-dimensional tissue scaffold onto which adherent cells can be seeded or are used as...
In this work, we present recent advances in guided-wave VLC links enabling high-aggregate link capacities. In particular, the use of equalisation schemes, coarse wavelength division multiplexing (CWDM) and high-density waveguide arrays are discussed in the context of VLC systems and recent results are presented. It is shown that the use of simple electronic few-tap pre-equalisers can enable significant...
Nanoscale metasurfaces have become an area of growing interest in recent years with the promise of new functionalities. One area that has received a lot of attention is sub-diffraction limit printing. We demonstrate the fabrication of a novel hybrid Au-Ag metal nanoparticle array design on an ultra-thin film propylene polymer material. The design presented generates strong colours due to the plasmonic...
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