Precise measurement of trapping and manipulation properties of focused fractional vortex beams.
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DOI: 10.1039/d1nr06163a
Abstract: Fractional vortex beams (FVBs) were believed to be hard to rotate microparticles at a half-integer topological charge due to the unique radial opening (low-intensity gap) in their intensity ring. However, recent research discovered more symmetric… read more here.
Keywords: fvbs; manipulation; intensity; fractional vortex ... See more keywords
Partially coherent fractional vortex beam.
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DOI: 10.1364/oe.26.026830
Abstract: We introduce a new kind of partially coherent vortex (PCV) beam with fractional topological charge named partially coherent fractional vortex (PCFV) beam and derive the propagation formula for such beam passing through a stigmatic ABCD… read more here.
Keywords: pcfv beam; fractional vortex; beam; partially coherent ... See more keywords
Spiral fractional vortex beams.
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DOI: 10.1364/oe.482361
Abstract: A new type of spatially structured light field carrying orbital angular momentum (OAM) mode with any non-integer topological order, referred to as the spiral fractional vortex beam, is demonstrated using the spiral transformation. Such beams… read more here.
Keywords: spiral fractional; non integer; phase; fractional vortex ... See more keywords