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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 5, Iss. 12 — Dec. 1, 1988
  • pp: 2552–2559

Surface electromagnetic modes in prolate spheroids of gold, aluminum, and copper

M. J. Bloemer, M. C. Buncick, R. J. Warmack, and T. L. Ferrell  »View Author Affiliations

JOSA B, Vol. 5, Issue 12, pp. 2552-2559 (1988)

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Optical absorbance measurements are presented for discontinuous films of gold, aluminum, and copper as a function of wavelength, polarization, and angle. Anomolous peaks in the absorbance spectra are observed for all three metals. Two peaks are detected for gold, and one peak is detected for both aluminum and copper. Comparison with electromagnetic theory is made on the basis that the microstructures can be modeled as prolate spheroids. The theoretical model is tested experimentally for various minor-to-major-axis ratios of the spheroid.

© 1988 Optical Society of America

Original Manuscript: December 22, 1987
Manuscript Accepted: August 3, 1988
Published: December 1, 1988

M. J. Bloemer, M. C. Buncick, R. J. Warmack, and T. L. Ferrell, "Surface electromagnetic modes in prolate spheroids of gold, aluminum, and copper," J. Opt. Soc. Am. B 5, 2552-2559 (1988)

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