Articles with "doughnut shaped" as a keyword



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Direct generation of continuous-wave and passively Q-switched visible vortex beams from a doughnut-shaped diode-pumped Pr: YLF laser.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.457732

Abstract: We demonstrate the direct generation of visible vortex beams (LG01 mode) from a doughnut-shaped diode-pumped Pr:YLF laser. In continuous-wave mode, the maximum vortex output power was 36 mW at 523 nm, 354 mW at 607… read more here.

Keywords: direct generation; doughnut shaped; vortex; vortex beams ... See more keywords
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Doughnut-shaped emission from vertical organic nanowire coupled to thin plasmonic film.

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Published in 2018 at "Optics letters"

DOI: 10.1364/ol.43.000923

Abstract: Vertical nanowires facilitate an innovative mechanism to channel the optical field in the orthogonal direction and act as a nanoscale light source. Subwavelength, vertically oriented nanowire platforms, both of plasmonic and semiconducting variety, can facilitate… read more here.

Keywords: vertical organic; organic nanowire; nanowire; film ... See more keywords