17 October 2013 Near-field Moiré effect with dielectric–metal–dielectric sandwich structure
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Abstract
The visibility of Moiré fringes is a major feature for their application in optical metrology. With the help of surface plasmon polariton (SPP) waves excited for a metal layer whose permittivity match with that of its dielectric partner, the visibility of Moiré fringes is improved. For a dielectric-metal-dielectric sandwich structure between two subwavelength gratings with the optimum thicknesses of the layers but not appropriately matched permittivity, we found that it is easy to achieve a remarkable enhancement (visibility up to 0.88) of the Moiré fringes facilitated by the excitation of SPP waves.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Shuxia Zhang, Shuxia Zhang, Shuai Liu, Shuai Liu, Xuefeng Yang, Xuefeng Yang, Changtao Wang, Changtao Wang, Xiangang Luo, Xiangang Luo, } "Near-field Moiré effect with dielectric–metal–dielectric sandwich structure," Journal of Nanophotonics 7(1), 073080 (17 October 2013). https://doi.org/10.1117/1.JNP.7.073080 . Submission:
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