Holographic formation of optical-vortex filaments

  title={Holographic formation of optical-vortex filaments},
  author={Zachary S Sacks and David Rozas and Grover A. Swartzlander},
An optical-vortex filament is characterized by a dark core of vanishing size and fluidlike propagation dynamics in the near-field region. This type of phase singularity does not naturally occur as an eigenmode of a cylindrically symmetric system, but it can be easily formed by computer-generated holography. The size of the core is an important attribute affecting vortex–vortex interactions within a laser beam. Here we demonstrate a means to minimize the core size, and we experimentally show… CONTINUE READING
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