Confocal microscopy with a radially polarized focused beam

Peiwen Meng*, Silvania Pereira, Paul Urbach

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)
132 Downloads (Pure)


Rigorous vectorial focusing theory is used to study the imaging of small adjacent particles with a confocal laser scanning system. We consider radially polarized illumination with an optimized amplitude distribution and an annular lens to obtain a narrower distribution of the longitudinal component of the field in focus. A polarization convertor at the detector side is added to transform radial polarization to linear polarization in order to make the signal detectable with a single mode fiber.

Original languageEnglish
Pages (from-to)29600-29613
JournalOptics Express
Issue number23
Publication statusPublished - 2018


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