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Tiny Transmission Lines Nanofocus IR Light

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USURBIL, Spain, April 6, 2011 — Experiments conducted at nanoGUNE, a new nanoscience and nanotechnology center, show that infrared light can be transported and nanofocused with miniature transmission lines consisting of two closely spaced metal nanowires. This innovation could have implications in spectroscopy and sensing applications. In conventional optical instruments, light cannot be focused to spot sizes smaller than half its wavelength because of diffraction effects. An important approach to overcoming the diffraction limit is based on optical antennas, which can concentrate light in nanoscale-size spots, which...Read full article

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    Published: April 2011
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    EuropeImaginginfrared lightlensesLight SourcesMartin Schnellmetal nanowiresMicroscopynanoNanoFocusnanoGUNEnear-field optical microscopyoptical antennasoptical detectorsoptical instrumentsOpticsRainer HillenbrandResearch & Technologysemiconductor nanoparticlesSensors & DetectorsSpainspectroscopytransmission lines

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