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Laser Process Allows Precision Design of Nanospheres

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A laser-based technique for creating light-scattering silicon nanospheres could have applications in medicine and sensor technology. Molten silicon forms nanoparticles which, due to surface tension, fly onto a receiver substrate. Images courtesy of Laser Zentrum Hannover. The Nanophotonics Group of the Laser Zentrum Hannover (LZH) used femtosecond laser pulses to irradiate thin layers of silicon. The surface tension of the molten silicon created perfectly round, 165-nm particles, which were then captured on a substrate. Silicon nanoparticles are particularly interesting, the...Read full article

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    Published: April 2014
    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.
    scattering
    Change of the spatial distribution of a beam of radiation when it interacts with a surface or a heterogeneous medium, in which process there is no change of wavelength of the radiation.
    BiophotonicsEuro NewsEuropeGermanyindustrialLaser Zentrum HannoverMaterialsmetamaterialsnanonanoantennasnanolasersnanospheresOpticsResearch & TechnologyscatteringSensors & DetectorssiliconspectroscopyTech PulseBoris ChichkovLasers

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