Abstract
Optical vortices with an annular spatial form and helical wavefront due to phase singularity have been applied in a variety of fields, for instance, optical tweezers, super-resolution microscopes, and optical telecommunications. To date, we have demonstrated the fabrication of metal nanoneedles and chiral metal nanostructures by irradiating optical vortices (optical vortex materials processing) [1-4].
© 2015 IEEE
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