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Optical Materials Express focus issue: Nanoplasmonics and metamaterials
Date:9/22/2011

/ome/abstract.cfm?URI=ome-1-6-1090

  • Dopant concentration dependence of aluminum-doped zinc oxide (ZnO) performance as a metal alternative is studied by Frlich and Wegener. This group from the Karlsruhe Institute of Technology demonstrates applicability of the atomic layer deposition technique for 3-D design of metamaterials. Paper: "Spectroscopic characterization of highly doped ZnO films grown by atomic-layer deposition for three-dimensional infrared metamaterials," Optical Materials Express, Vol. 1, Issue 5, pp. 883-889. http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-1-5-883

  • Kehr et al. develop lenses with sub-diffraction resolution (superlenses) for terahertz spectral range based on phonon resonances of perovskite-type oxides. This collaborative team from the U.K., U.S., and Germany uses a unique near-field microscopy tool with a free-electron tunable laser for their research. Paper: "Microspectroscopy on perovskite-based superlenses." Optical Materials Express, Vol. 1, Issue 5, pp. 1051-1060. http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-1-5-1051

  • Alternatively, Campione, Albani, and Capolino study another approach in which the metal losses are compensated by the introduction of a gain material. The authors predict the possibility of designing loss-compensated metamaterials, made of a 3-D lattice of nanoshells, that exhibit permittivity near zero with moderate losses at optical frequencies by using optically pumped fluorescent dye molecules in the cores of the metamaterial constituent nanoshells. Paper: "Complex modes and near-zero permittivity in 3D arrays of plasmonic nanoshells: loss compensation using gain," Optical Materials Express, Vol. 1, Issue 6, pp. 1077-1089.

  • Contact: Angela Stark
    astark@osa.org
    202-416-1443
    Optical Society of America
    Source:Eurekalert

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