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 language | English |
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Pages (from-to) | 1101-1104 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 39 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2014 Feb 15 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics