Confocal microscopy with a radially polarized focused beam

Journal article (2018)

Authors

P. Meng ImPhys/Optics - AS
S.F. Pereira ImPhys/Optics - AS
Paul Urbach ImPhys/Optics - AS
Research Group
ImPhys/Optics (AS) (TU Delft)
Copyright: © 2018 P. Meng, S.F. Pereira, Paul Urbach
DOI: https://doi.org/10.1364/OE.26.029600
OA-Fund TU Delft
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Published Date

2018

Language

English

Reuse Rights

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Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

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.

Files

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