Subtraction imaging by the combination of higher-order vector beams for enhanced spatial resolution

Mio Yoshida, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We demonstrate that the spatial resolution in confocal laser scanning microscopy is remarkably improved by simple image subtraction between images acquired by higher-order transverse modes of a cylindrical vector beam, referred to as radially and azimuthally polarized Laguerre–Gaussian mode beams. Two types of combinations of vector mode beams suitable for subtraction imaging are derived by a systematical study based on numerical calculations. The spatial resolution of about 100 nm is experimentally achieved without the degradation of image quality.

Original languageEnglish
Pages (from-to)883-886
Number of pages4
JournalOptics Letters
Volume44
Issue number4
DOIs
Publication statusPublished - 2019 Feb 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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