Optical attenuation coefficient in individual ZnO nanowires
Haegel, Nancy M.
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Attenuation coefficient measurements for the propagation of bandedge luminescence are made on individual ZnO nanowires by combining the localized excitation capability of a scanning electron microscope (SEM) with near-field scanning optical microscopy (NSOM) to record the distribution and intensity of wave-guided emission. Measurements were made for individual nanostructures with triangular cross-sections ranging in diameter from 680 to 2300 nm. The effective attenuation coefficient shows an inverse dependence on nanowire diameter (dÃ Ã Â¢ 1), indicating scattering losses due to non-ideal waveguiding behavior.
Optics Express, Volume 21, No. 5, pp. 6321-6326 (11 March 2013)
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