標題: Direct generation of red and orange optical vortex beams from an off-axis diode-pumped Pr3+:YLF laser
作者: Ma, Yuanyuan
Valles, Adam
Tung, Jung-Chen
Chen, Yung-Fu
Miyamoto, Katsuhiko
Omatsu, Takashige
電子物理學系
Department of Electrophysics
公開日期: 24-Jun-2019
摘要: We demonstrate the direct generation of visible vortex beams at 640 nm and 607 nm by employing an off-axis pumping scheme in a diode end-pumped Pr3+:YLF laser. A detailed numerical analysis, based on the coherent superposition of Hermite-Gaussian modes with different amplitudes and phases, is perfectly consistent with the experimentally observed lasing modes. The maximum vortex output powers have been measured to be 808 mW and 211 mW at a pump power of 3.16 W, for the wavelengths of 640 nm and 607 nm, respectively. We also demonstrate the handedness control of the generated vortex beam. Such a visible vortex laser can potentially be applied in super-resolution fluorescent microscopes and micro-fabrication research. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URI: http://dx.doi.org/10.1364/OE.27.018190
http://hdl.handle.net/11536/152204
ISSN: 1094-4087
DOI: 10.1364/OE.27.018190
期刊: OPTICS EXPRESS
Volume: 27
Issue: 13
起始頁: 18190
結束頁: 18200
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