Browsing 02 Physical Sciences by Author "Anstis Geoffrey"

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Browsing 02 Physical Sciences by Author "Anstis Geoffrey"

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  • The 1s-State Analysis Applied to High-Angle, Annular Dark-Field Image Interpretation: When Can We Use It? 
    Anstis Geoffrey (Cambridge University Press, 2004)
    A small probe centered on an atomic column excites the bound and unbound states of the two-dimensional projected potential of the column. It has been argued that, even when several states are excited, only the 1s state ...
  • Calculation of phase changes of electron waves near excited nanoparticles 
    Anstis Geoffrey (Elsevier, 2010)
    When a metallic nanoparticle is illuminated by electromagnetic radiation of the appropriate frequency, strong electric and magnetic fields are generated close to the surface of the particle by the valence electrons of the ...
  • Light Splitting In Nanoporous Gold And Silver 
    Bosman Michel; Anstis Geoffrey; Keast Vicki; Clarke Jennifer; Cortie Michael (Amer Chemical Soc, 2012)
    Nanoporous gold and silver exhibit strong, omnidirectional broad-band absorption in the far-field. Even though they consist entirely of gold or silver atoms, these materials appear black and dull, in great contrast with ...
  • Plasmon resonances and electron phase shifts near Au nanospheres 
    Petersen T; Bosman Michel; Keast Vicki; Anstis Geoffrey (American Institute of Physics, 2008)
    Quantitative phase maps from Au and polystyrene nanospheres were obtained using the transport of intensity equation approach for phase retrieval in the electron microscope. These were compared to surface plasmon maps, as ...