ANNULAR FOCUSING THROUGH A DIELECTRIC INTERFACE - SCANNING AND CONFINING THE INTENSITY

Authors
WIERSMA SH VISSER TD TOROK P
Citation
Sh. Wiersma et al., ANNULAR FOCUSING THROUGH A DIELECTRIC INTERFACE - SCANNING AND CONFINING THE INTENSITY, Pure and applied optics, 7(5), 1998, pp. 1237-1248
Citations number
18
Categorie Soggetti
Optics
Journal title
Pure and applied optics → ACNP
ISSN journal
09639659
Volume
7
Issue
5
Year of publication
1998
Pages
1237 - 1248
Database
ISI
SICI code
0963-9659(1998)7:5<1237:AFTADI>2.0.ZU;2-X
Abstract
We study the problem of light focusing by a high-aperture lens through a planar interface between two media with different refractive indice s. It is demonstrated how, by using annular illumination, the intensit y distribution can be significantly confined. A new scanning mechanism is proposed to continuously probe the intensity peak through the seco nd medium. This mechanism may be applied in, for example, lithography and three-dimensional imaging.