Demonstration of subtraction imaging in confocal microscopy with vector beams

Susumu Segawa, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


The subtraction imaging in confocal microscopy is demonstrated by using two vector beams with radial and azimuthal polarizations. The longitudinal electric component, which appears near the focus of a radially polarized beam under the tight focusing condition and produces a smaller focal spot, is effectively extracted by the subtraction using an azimuthally polarized beam. This subtraction imaging with vector beams provides the improvement of the lateral resolution in confocal microscopy without the degradation due to the excess subtraction.

Original languageEnglish
Pages (from-to)4529-4532
Number of pages4
JournalOptics Letters
Issue number15
Publication statusPublished - 2014 Aug 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Demonstration of subtraction imaging in confocal microscopy with vector beams'. Together they form a unique fingerprint.

Cite this