Annular focusing through a dielectric interface: Scanning and confining the intensity

S. H. Wiersma, T. D. Visser*, P. Török

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We study the problem of light focusing by a high-aperture lens through a planar interface between two media with different refractive indices. It is demonstrated how, by using annular illumination, the intensity distribution can be significantly confined. A new scanning mechanism is proposed to continuously probe the intensity peak through the second medium. This mechanism may be applied in, for example, lithography and three-dimensional imaging.

Original languageEnglish
Pages (from-to)1237-1248
Number of pages12
JournalPure and Applied Optics
Volume7
Issue number5
DOIs
Publication statusPublished - Sept 1998
Externally publishedYes

ASJC Scopus Subject Areas

  • General Engineering
  • General Physics and Astronomy

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