- Nanofocusing of radially polarized light with dielectric-metal-dielectric probeTomasz J Antosiewicz
Faculty of Physics, University of Warsaw, Pasteura 7, 02 093 Warszawa, Poland
Opt Express 17:9191-6. 2009..In body-of-revolution finite-difference time-domain simulations we find that with an increase of the refractive index of nanocladdings the maximum enhancement occurs for increasingly longer wavelengths...
- Magnetic field concentrator for probing optical magnetic metamaterialsTomasz J Antosiewicz
Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, Pawi nskiego 5a, 02 106 Warsaw, Poland
Opt Express 18:25906-11. 2010..The active probe may be used in a future scanning near-field magnetic microscope for studies of magnetic responses of subwavelength elementary cells of metamaterials...
- Three filters for visualization of phase objects with large variations of phase gradientsArkadiusz Sagan
Faculty of Physics, University of Warsaw, Warsaw Poland
Appl Opt 48:1143-52. 2009..Their advantage over other known amplitude frequency-domain filters, such as linear or square-root graded ones, is that they allow high-contrast visualization of objects with large variations of phase gradients...
- Focusing radially polarized light by a concentrically corrugated silver film without a holePiotr Wróbel
Faculty of Physics, University of Warsaw, Pasteura 7, 02 093 Warsaw, Poland
Phys Rev Lett 102:183902. 2009..16lambda2 and lambda, respectively. This Ag lens focuses without contribution of evanescent waves a far-field source into a far-field spot. The nanolens acts like a refractive optical system of high numerical aperture close to unity...