Metallodielectric eutectic composite for plasmonic applications

META'15, City College of New York, New York City, NY, USA August 4, 2015 – August 7, 2015; http://metaconferences.org/ocs/index.php/META15/META15Metallodielectric composites are very interesting from the point of view of metamaterials and plasmonics. For the fabrication of self-organized metallodielectric micro/nanostructures, one particularly promising approach is based on the directional solidification of eutectics. Here we demonstrate a bulk three-dimensional nanoplasmonic eutectic composite which was obtained by bottom-up approach. This material exhibits localized surface plasmon resonance (LSPR) at visible wavelengths.The authors thank the Maestro Project 2011/02/A/ST5/00471 and the Preludium Project 2012/07/N/ST5/02428 from the National Science Centre, the Project operated within the Foundation for Polish Science Team Programme cofinanced by the EU European Regional Development Fund and the U.S. Air Force Office of Scientific Research under Grant FA9550-14-1-0061 for support of this work. Additional information: The authors have applied for a patent regarding this work.Peer Reviewe

Interacting plasmon and phonon polaritons in aligned nano- and microwires

The availability of macroscopic, nearly periodic structures known as eutectics opens a new path for controlling light at wavelength scales determined by the geometrical parameters of these materials and the intrinsic properties of their component phases. Here, we analyze the optical waveguiding properties of eutectic mixtures of alkali halides, formed by close-packed arrangements of aligned cylindrical inclusions. The wavelengths of phonon polaritons in these constituents are conveniently situated in the infrared and are slightly larger than the diameter and separation of the inclusions, typically consisting on single-crystal wires down to submicrometer diameter. We first discuss the gap mode and the guiding properties of metallic cylindrical waveguides in the visible and near-infrared, and in particular we investigate the transition between cylinder touching and non-touching regimes. Then, we demonstrate that these properties can be extended to the mid infrared by means of phonon polaritons. Finally, we analyze the guiding properties of an actual eutectic. For typical eutectic dimensions, we conclude that crosstalk between neighboring cylindrical wires is small, thus providing a promising platform for signal propagation and image analysis in the mid infrared

Demonstration of the temporal matter-wave Talbot effect for trapped matter waves

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Plasma Wakefield Acceleration with a Modulated Proton Bunch

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