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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 14 — Jul. 7, 2008
  • pp: 10200–10207

Astronomical demonstration of an optical vortex coronagraph

Grover A. Swartzlander, Jr., Erin L. Ford, Rukiah S. Abdul-Malik, Laird M. Close, Mary Anne Peters, David M. Palacios, and Daniel W. Wilson  »View Author Affiliations

Optics Express, Vol. 16, Issue 14, pp. 10200-10207 (2008)

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Using an optical vortex coronagraph and simple adaptive optics techniques, we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. We suppressed by 97% the primary star of a resolvable binary system, Cor Caroli. The stars had an angular separation of 1.9λ/D at our imaging camera. The secondary star suffered no suppression from the vortex lens.

© 2008 Optical Society of America

OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(110.6770) Imaging systems : Telescopes
(120.1880) Instrumentation, measurement, and metrology : Detection
(350.1260) Other areas of optics : Astronomical optics
(080.4865) Geometric optics : Optical vortices
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Imaging Systems

Original Manuscript: May 14, 2008
Revised Manuscript: June 10, 2008
Manuscript Accepted: June 16, 2008
Published: June 24, 2008

Grover A. Swartzlander, Erin L. Ford, Rukiah S. Abdul-Malik, Laird M. Close, Mary Anne Peters, David M. Palacios, and Daniel W. Wilson, "Astronomical demonstration of an optical vortex coronagraph," Opt. Express 16, 10200-10207 (2008)

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  28. We acknowledge G. E. Foo, E. Christensen, G. A. Swartzlander, Jr., for this measurement using the 60”telescope on Mt. Lemmon, Arizona, Dec. 2002. Similar results were later reported in F. Tamburini, G. Anzolin, G. Umbriaco, A. Bianchini, C. Barbieri, “Optical Vortices with Starlight,” arXiv:0706.2675v2.
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