A spectral element method calculation of extraordinary light transmission through periodic subwavelength slits
Abstract
A spectral element method together with a surface integral equation as the radiation
boundary condition is used to simulate the scattering properties of periodic subwavelength
slits. The surface integral equation utilizes the periodic Green's function in the
wave number space and is solved by the method of moments, while the interior inhomogeneous
medium is modeled by the spectral element method. The solution convergence is found
to be exponential; i.e., the error decreases exponentially with the order of basis
functions. To our knowledge, such a fast solver with spectral accuracy is new in the
scattering problem of periodic structures. Scattering properties of a gold slit grid
within the whole wavelength-incidence angle parameter space are investigated, with
the confirmation that strong transmission of light through subwavelength slits is
achievable. © 2010 Optical Society of America.
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Journal articlePermalink
https://hdl.handle.net/10161/4232Published Version (Please cite this version)
10.1364/JOSAB.27.000560Publication Info
Luo, M; Liu, QH; & Guo, J (2010). A spectral element method calculation of extraordinary light transmission through
periodic subwavelength slits. Journal of the Optical Society of America B: Optical Physics, 27(3). pp. 560-566. 10.1364/JOSAB.27.000560. Retrieved from https://hdl.handle.net/10161/4232.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
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Show full item recordScholars@Duke
Qing Huo Liu
Professor of Electrical and Computer Engineering
Qing H. Liu received the Ph.D. degree in electrical engineering from the University
of Illinois at Urbana-Champaign in 1989. His research interests have been in computational
electromagnetics and acoustics, inverse problems, and their application in geophysics,
nanophotonics, and biomedical imaging. He has published more than 300 refereed journal
papers in these areas. He was a Research Assistant (September 1986 to December 1988)
and then a Postdoctoral Research Associate (January 1989 to Feb
This author no longer has a Scholars@Duke profile, so the information shown here reflects
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