Limitations on subdiffraction imaging with a negative refractive index slab

By David R. Smith, David Schurig, M. Rosenbluth, S. Schultz, S. Anantha Ramakrishna, John B. Pendry. 2002

484 citations recorded by the source corpus.

A planar slab of material, for which both the permittivity and permeability have the values of −1, can bring not only the propagating fields associated with a source to a focus, but can also refocus the nonpropagating near fields, thereby achieving resolution beyond the diffraction limit. We study the sensitivity of this subwavelength focus to the slab material properties and periodicity, and note the connection to slab surface plasmon modes. We conclude that significant subwavelength resolution is achievable with a single negative index slab, but only over a restrictive range of parameters.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/9c657b2bea71028b240d9888f0f204405d28de01

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In Atomic and Molecular Physics, and Optics

In Biomedical Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Realization of optical superlens imaging below the diffraction limit (2005, background): “The surface quality of the film has to be controlled in order to maximize the image quality [ 15 ].”
Superlenses to overcome the diffraction limit. (2008, background): “Another consequence of the material loss and imperfections is that the distance between the slab and both the object and its image, as well as the slab's thickness, must all be small compared with the wavelength if we are to obtain meaningful resonant enhancement of the evanescent wave”
Flat Luneburg Lens via Transformation Optics for Directive Antenna Applications (2014, background): “, man-made materials consisting of many sub-wavelength resonators; however, metamaterials are inherently narrowband, lossy and dispersive [28], [29] and”
Plasmonics for near-field nano-imaging and superlensing (2009, background): “For example, the perfect lens or superlens proposed by Pendry also images a sample in nanoscopic resolution by exciting SPP at its resonance frequenc”