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http://dx.doi.org/10.3807/KJOP.2013.24.2.053

Polarization Selective Blazed Grating Employing Metal-slit Arrays  

Jung, Young Jin (School of Electricity and Electronics, Ulsan College)
Publication Information
Korean Journal of Optics and Photonics / v.24, no.2, 2013 , pp. 53-57 More about this Journal
Abstract
A polarization selective blazed grating employing metal-slit arrays was proposed. Nano-scale metal-slits were applied to the micro-scale blazed grating to give the functionality of polarization selection. Case study was carried out for the proposed structure utilizing numerical FDTD (Finite Difference Time Domain method) simulation. Diffraction efficiency of 77.61% and polarization extinction ratio of 8.99 was achieved with arbitrary parameters and diffraction efficiency of 64.22% and polarization extinction ratio of 81.09 was achieved with other parameters to enhance extinction ratio.
Keywords
Metal slit array grating; Wire grid polarizer; Blazed grating; Surface plasmon;
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