Generation of radially polarized Bessel-Gaussian beams from c-cut Nd:YVO4 laser

Sunil Vyas, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

We experimentally demonstrate the generation of radially polarized Bessel-Gaussian beams from a c-cut Nd:YVO4 laser with a hemispherical cavity configuration by proper mode control. The output beam has an annular-shaped intensity distribution with radial polarization. When the beam is focused, the intensity pattern changes to a multiring, which is a typical characteristic of the lowest transverse mode of vector Bessel-Gaussian beam. Higher-order modes of vector Bessel-Gaussian beam are also observed from the same cavity by slightly changing the cavity alignment. The experimental results show a good agreement with the simulation results for both focal and far fields. The present method is a simple and direct way for generating vector Bessel-Gaussian beams.

Original languageEnglish
Pages (from-to)1101-1104
Number of pages4
JournalOptics Letters
Volume39
Issue number4
DOIs
Publication statusPublished - 2014 Feb 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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