GENERATION OF VORTEX LIGHT USING COMPLEX GRATING STRUCTURES
Research and applications of vortex light are at the forefront and hot topics in the field of optics.In this paper,we introduce a convenient and practical method for preparing vortex light.Initially,we utilize the interference between vortex light and Gaussian light to generate a cross-shaped grating structure.Subsequently,employing inkjet printing technolo-gy,we print this cross-shaped grating pattern onto laser printing film.Finally,by illuminat-ing the cross-shaped grating with a plane beam,we utilize the light absorption effect of the black areas on the film to achieve diffraction of light through the grating gaps,thus success-fully preparing vortex light with different topological charges.Compared to traditional meth-ods,this method does not require complex optical equipment or expensive materials,signifi-cantly reducing the technical barriers and economic costs of experiments,thus making vortex light generation more popular and feasible.Additionally,the simplicity and low-cost nature of this technique give it a broad application prospect in optical experimental teaching and basic scientific research,especially suitable for experimental environments with limited resources.
interference and diffractioncross-shaped gratingvortex light,laser printing film
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