Experimental verification of two-dimensional spatial harmonic analysis at oblique light incidence

Zhengtong Liu; Kuo Ping Chen; Xingjie Ni; Vladimir P. Drachev; Vladimir M. Shalaev; Alexander V. Kildishev

doi:10.1364/JOSAB.27.002465

Experimental verification of two-dimensional spatial harmonic analysis at oblique light incidence

Zhengtong Liu, Kuo Ping Chen, Xingjie Ni, Vladimir P. Drachev, Vladimir M. Shalaev, Alexander V. Kildishev

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13 Scopus citations

Abstract

We use a nanofabricated gold grating to validate two-dimensional spatial harmonic analysis (2D SHA) method, also known as Fourier modal method or rigorous coupled-wave analysis under oblique incidence. The transmittance spectra of the metal grating for incident angles of 0°-30° are obtained in both experiments and simulations at the zero diffraction order. The simulations are performed with our custom software, a fully functional web-based 2D SHA tool, which has been staged at nanoHUB.org and is free to use. The simulation results are compared to experimentally measured values, and a good fit is achieved for all incident angles. Possible reasons for experiment-simulation mismatch in actual nano-plasmonic structures are also discussed.

Original language	English (US)
Pages (from-to)	2465-2470
Number of pages	6
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	27
Issue number	12
DOIs	https://doi.org/10.1364/JOSAB.27.002465
State	Published - Dec 2010

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Atomic and Molecular Physics, and Optics

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title = "Experimental verification of two-dimensional spatial harmonic analysis at oblique light incidence",

abstract = "We use a nanofabricated gold grating to validate two-dimensional spatial harmonic analysis (2D SHA) method, also known as Fourier modal method or rigorous coupled-wave analysis under oblique incidence. The transmittance spectra of the metal grating for incident angles of 0°-30° are obtained in both experiments and simulations at the zero diffraction order. The simulations are performed with our custom software, a fully functional web-based 2D SHA tool, which has been staged at nanoHUB.org and is free to use. The simulation results are compared to experimentally measured values, and a good fit is achieved for all incident angles. Possible reasons for experiment-simulation mismatch in actual nano-plasmonic structures are also discussed.",

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T1 - Experimental verification of two-dimensional spatial harmonic analysis at oblique light incidence

AU - Liu, Zhengtong

AU - Chen, Kuo Ping

AU - Ni, Xingjie

AU - Drachev, Vladimir P.

AU - Shalaev, Vladimir M.

AU - Kildishev, Alexander V.

PY - 2010/12

Y1 - 2010/12

N2 - We use a nanofabricated gold grating to validate two-dimensional spatial harmonic analysis (2D SHA) method, also known as Fourier modal method or rigorous coupled-wave analysis under oblique incidence. The transmittance spectra of the metal grating for incident angles of 0°-30° are obtained in both experiments and simulations at the zero diffraction order. The simulations are performed with our custom software, a fully functional web-based 2D SHA tool, which has been staged at nanoHUB.org and is free to use. The simulation results are compared to experimentally measured values, and a good fit is achieved for all incident angles. Possible reasons for experiment-simulation mismatch in actual nano-plasmonic structures are also discussed.

AB - We use a nanofabricated gold grating to validate two-dimensional spatial harmonic analysis (2D SHA) method, also known as Fourier modal method or rigorous coupled-wave analysis under oblique incidence. The transmittance spectra of the metal grating for incident angles of 0°-30° are obtained in both experiments and simulations at the zero diffraction order. The simulations are performed with our custom software, a fully functional web-based 2D SHA tool, which has been staged at nanoHUB.org and is free to use. The simulation results are compared to experimentally measured values, and a good fit is achieved for all incident angles. Possible reasons for experiment-simulation mismatch in actual nano-plasmonic structures are also discussed.

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Experimental verification of two-dimensional spatial harmonic analysis at oblique light incidence

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