An apodizing phase plate coronagraph for VLT/NACO

Matthew A. Kenworthy, Sascha P. Quanz, Michael R. Meyer, Markus E. Kasper, Rainer Lenzen, Johanan L. Codona, Julien H. Girard, Philip M. Hinz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations


We describe a coronagraphic optic for use with CONICA at the VLT that provides suppression of diffraction from 1.8 to 7 λ/D at 4.05 microns, an optimal wavelength for direct imaging of cool extrasolar planets. The optic is designed to provide 10 magnitudes of contrast at 0.2 arcseconds, over a "D" shaped region in the image plane, without the need for any focal plane occulting mask.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy III
EditionPART 1
StatePublished - Nov 12 2010
EventGround-Based and Airborne Instrumentation for Astronomy III - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
NumberPART 1
ISSN (Print)0277-786X


OtherGround-Based and Airborne Instrumentation for Astronomy III
Country/TerritoryUnited States
CitySan Diego, CA


  • adaptive optics
  • coronagraph
  • high contrast
  • thermal infrared

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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