Optical attenuation coefficient in individual ZnO nanowires
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Authors
Little, Anree
Hoffman, Abigail
Haegel, Nancy M.
Subjects
Nanomaterials
Semiconductors
Near-field microscopy
Cathodoluminescence
Scattering
Semiconductors
Near-field microscopy
Cathodoluminescence
Scattering
Advisors
Date of Issue
2013-03
Date
2013-03
Publisher
Language
Abstract
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
(dà à ¢ 1), indicating scattering losses due to non-ideal waveguiding behavior.
Type
Description
Optics Express, Volume 21, No. 5, pp. 6321-6326 (11 March 2013)
Series/Report No
Department
Department of Physics
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NPS Report Number
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Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.