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The Theoretical Study of TM Transmittance and Contrast Ratio for Sub-Wavelength Metallic Gratings

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Abstract:

According to the requirement of the bionic navigation sensitive wave band of 380nm~520nm for sub-wavelength metallic gratings, in order to achieve performance indicators under the basic structural parameters. Analyzing TM transmittance and contrast ratio is carried out by employing finite-difference time-domain (FDTD) method. The result reveals that height, slit width and dielectric of grating impact TM transmittance and contrast ratio in various extents, and the greatest influence on the TM transmittance and contrast ratio is slit dielectric and slit width respectively.

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Info:

Periodical:

Applied Mechanics and Materials (Volume 575)

Pages:

138-141

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.575.138

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Online since:

June 2014

Authors:

Ren Cheng Jin*, Yang Rui, Jin Kui Chu, Ying Jie Zhang

Keywords:

Bionic Navigation Sensitive Wave Band, Contrast Ratio, Sub-Wavelength Metallic Gratings, TM Transmittance

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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