Polarization-sensitive optical properties of metallic and semiconducting nanowires Report as inadecuate




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Alexander Shik ;Superficies y vacío 2006, 19 (3)

Author: Harry E. Ruda

Source: http://www.redalyc.org/


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Superficies y vacío ISSN: 1665-3521 alex@fis.cinvestav.mx Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. México Ruda, Harry E.; Shik, Alexander Polarization-sensitive optical properties of metallic and semiconducting nanowires Superficies y vacío, vol.
19, núm.
3, septiembre, 2006, pp.
1-11 Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Distrito Federal, México Available in: http:--www.redalyc.org-articulo.oa?id=94219301 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative ©Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales Superficies y Vacío 19(3), 1-11, septiembre de 2006 Polarization-sensitive optical properties of metallic and semiconducting nanowires Harry E.
Ruda, Alexander Shik Centre for Advanced Nanotechnology, University of Toronto Toronto M5S 3E4, Canada (Recibido: 10 de febrero de 2006; Aceptado: 25 de agosto de 2006) Polarization phenomena in the optical absorption and emission of metallic, semiconducting or composite nanowires and nanorods are considered theoretically.
Most nanowire-based structures are characterized by a dramatic difference in dielectric constant ε between their material and environment.
Due to image forces caused by such ε mismatch, coefficients of optical absorption and emission become essentially different for light polarized parallel or perpendicular to the nanowire axis.
As a result, the intensity and spectra of absorption, luminescence, luminescence excitation, and photoconductivity in single nanowires or arrays of parallel nanowires are strongly polarization-sensitive.
In light-emitting nanowire core-shell structures, the re-distribution of a.c.
electric field caused by the image forces may result in essent...





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