Near-field lenses in two dimensions

By J. Pendry, Sajja V Ramakrishna. 2002

135 citations recorded by the source corpus.

It has been shown that a slab of materials with refractive index n = −1 behaves like a perfect lens focusing all light to an exact electromagnetic copy of an object. The original lens is limited to producing images the same size as the object, but here we generalize the concept so that images can be magnified. For two-dimensional systems, over distances much shorter than the free space wavelength, we apply conformal transformations to the original parallel-sided slab generating a variety of new lenses. Although the new lenses are not 'perfect' they are able to magnify two-dimensional objects. The results apply equally to imaging of electric or magnetic sub-wavelength objects in two dimensions. The concepts have potential applications ranging from microwave frequencies to the visible.

Subfields: Aerospace Engineering, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/ea3edfae21990661f0f30986f76f95b1bc980390

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In Aerospace Engineering

In Biomedical Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Superlenses to overcome the diffraction limit. (2008, methodology): “A similar cylindrical magnifying superlens was proposed by Pendry several years earlie”
A proof of superlensing in the quasistatic regime, and limitations of superlenses in this regime due to anomalous localized resonance (2005, background): “…work was subsequently generalized to cylindrical lenses, spherical lenses and other more complicated structures with mirror symmetries (Pendry 2003; Pendry & Ramakrishna 2003; Guenneau et al. 2005), which it was anticipated would function beyond the quasistatic regime, i.e. for wavelengths…”