15 October 2015 Negative refraction super-resolution imaging by utilizing surface plasmon polaritons
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The resolution of imaging is limited by the missing of high-frequencies information. However, these information can be amplified by the metamaterial or surface plasmon polaritons. A silver film having sub-wavelength slit sandwiched between a front grating similar to Fresnel zone plate and back grating, are proposed to realize super-resolution imaging. We choose a wavelength in which the surface plasmon polaritons can be excited and negative refraction imaging can be implemented synchronously. By the numerical simulations, a fine image can be actualized within several wavelengths distance from the silver film.
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Guowei Cao, Guowei Cao, Peng Shi, Peng Shi, } "Negative refraction super-resolution imaging by utilizing surface plasmon polaritons", Proc. SPIE 9672, AOPC 2015: Advanced Display Technology; and Micro/Nano Optical Imaging Technologies and Applications, 96720A (15 October 2015); doi: 10.1117/12.2196985; https://doi.org/10.1117/12.2196985

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