Capabilities and limitations of pupil-plane filters for superresolution and image enhancement

Brynmor J. Davis*, William C. Karl, Anna K. Swan, M. Selim Ünlü, Bennett B. Goldberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The use of pupil-plane filters in microscopes has been proposed as a method of producing superresolution. Here it is shown that pupil-plane filters cannot increase the support of the transfer function for a large class of optical systems, implying that resolution cannot be improved solely by adding pupil-plane filters to an instrument. However, pupil filters can improve signal-to-noise performance and modify transfer-function zero crossing positions, as demonstrated through a confocal fluorescence example.

Original languageEnglish (US)
Pages (from-to)4150-4156
Number of pages7
JournalOptics Express
Volume12
Issue number17
DOIs
StatePublished - Aug 2004

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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