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arXiv · 0908.4532

Multiscale analysis of subwavelength imaging with metal-dielectric multilayers

Rafal Kotynski·Tomasz Stefaniuk
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Abstract

Imaging with a layered superlens is a spatial filtering operation characterized by the point spread function (PSF). We show that in the same optical system the image of a narrow sub-wavelength Gaussian incident field may be surprisingly dissimilar to the PSF, and the width of PSF is not a straightforward measure of resolution. FWHM or std. dev. of PSF give ambiguous information about the actual resolution, and imaging of objects smaller than the FWHM of PSF is possible. A multiscale analysis of imaging gives good insight into the peculiar scale-dependent properties of sub-wavelength imaging.

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Rafal Kotynski, Tomasz Stefaniuk. 2010-01-26. Multiscale analysis of subwavelength imaging with metal-dielectric multilayers. https://doi.org/10.1364/ol.35.001133

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