Various evaluations of a diffractive transmitted field of light through a one-dimensional metallic grating with subwavelength slits

• Authors: Bin Hu , Ben-Yuan Gu , Bi-Zhen Dong , Yan Zhang , Ming Liu
• Languages of publication: EN

Abstracts

EN

We compare the Fresnel-Kirchhoff diffraction formula, the superposition of cylindrical waves, and the twodimensional (2D) Green’s function diffraction formula with a rigorous vector algorithm in calculating the near and intermediately transmitted field of light through a one-dimensional metallic grating with subwavelength slits. It is found that the results calculated by the 2D Green’s function diffraction formula coincide well with the precise result. The other evaluations deviate from the exact result by varying proportions. Our findings may provide a useful and precise way to analyze the transmitted field features of a metallic grating and subsequent possibility of achieving optimal designs for metallic optical elements with subwavelength scale.

Keywords

EN

evaluations of transmitted light; metallic grating; subwavelength slits; surface plasmon polaritons

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2010
• Volume: 8
• Issue: 3
• Pages: 448-454

Dates

published

1 - 6 - 2010

online

24 - 4 - 2010

Contributors

author

Bin Hu

• Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China

author

Ben-Yuan Gu

• Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing, 100190, China

author

Bi-Zhen Dong

• Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing, 100190, China

author

Yan Zhang

• Department of Physics, Capital Normal University, Beijing, 100037, China

author

Ming Liu

• Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China

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Identifiers

DOI

10.2478/s11534-009-0125-6