Sub-wavelength imaging with a left-handed material flat lens
arXiv:physics/0403111 · doi:10.1016/j.physleta.2004.11.031
Abstract
We study numerically, by means of the pseudospectral time-domain method, the unique features of imaging by a flat lens made of a left-handed metamaterial that possesses the property of negative refraction. We confirm the earlier finding that a left-handed flat lens can provide near-perfect imaging of a point source and a pair of point sources with clear evidence of the sub-wavelength resolution. We illustrate the limitation of the resolution in the time-integrated image due to the presence of surface waves.
4 pages, RevTeX, 6 figures; added references and some discussion
References in corpus (4)
- Limitations on Sub-Diffraction Imaging with a Negative Refractive Index Slab
- Finite-size effects of a left-handed material slab on the image quality
- Subwavelength imaging by a left-handed material superlens
- Finite-Difference and Pseudospectral Time-Domain Methods Applied to Backwards-Wave Metamaterials
Cited by in corpus (7)
- Subwavelength imaging with opaque left-handed nonlinear lens
- Sub-wavelength imaging: Resolution enhancement using metal wire gratings
- Accurate Modelling of Left-Handed Metamaterials Using Finite-Difference Time-Domain Method with Spatial Averaging at the Boundaries
- Wave scattering by metamaterial wedges and interfaces
- Green's function for metamaterial superlens: Evanescent wave in the image
- Calculation of dispersion equations for uniaxial dielectric-magnetic mediums
- Finite-difference frequency-domain study of subwavelength lensing in left-handed materials