Measuring the topological charge of light beams generated by four-wave mixing in Rb vapours
conference on lasers and electro optics(2018)
摘要
Collimated light generated via four wave mixing in atomic rubidium vapours excited by light carrying orbital angular momentum is analyzed, particularly the case of doughnut-shaped intensity profiles with zero topological charge.
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关键词
050.4865 Optical vortices,(190.4223)Nonlinear wave mixing
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