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  • Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing
  • OSA Technical Digest Series (Optica Publishing Group, 2004),
  • paper FWT1
  • https://doi.org/10.1364/FIO.2004.FWT1

Optical vortex coronagraphs

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Abstract

Starlight transmitted through an optical vortex spatial filter was observed to form a dark core in the image of the star despite atmospheric turbulence. This affords opportunities to use optical vortices in the hunt for extra-solar planets and zodiacal dust. Observations of astronomical bodies such Betelgeuse and Saturn using a 60-inch f/16 telescope will be reported.

© 2004 Optical Society of America

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