Portal de Periódicos da CAPES

Enhanced resolution beyond the Abbe diffraction limit with wavelength-scale solid immersion lenses

2010; Optica Publishing Group; Volume: 35; Issue: 12 Linguagem: Inglês

10.1364/ol.35.002007

1539-4794

Daniel R. Mason, M. V. Jouravlev, Kwang S. Kim,

Optical Coatings and Gratings

The solid immersion lens (SIL) is a well-developed near-field optical device for imaging and data storage. Recent experiments have demonstrated high-quality imaging beyond the diffraction limit by nanoscale lenses in an SIL-type implementation [Nature 460, 498 (2009)]; we call these nSIL. A question arises as to what resolution is obtainable with an nSIL. From full three-dimensional, finite-difference time-domain calculations, we demonstrate that the FWHM of the focal spot of an objective-lens-nSIL system can be reduced by greater than 25% compared to a regular macroscopic SIL.