Developing achromatic coronagraphic optics for LMIRCam and the LBT

Matthew A. Kenworthy, Philip M. Hinz, Johanan L. Codona, John C. Wilson, Michael F. Skrutskie, Elliott Solheid

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

5 Scopus citations


The Apodizing Phase Plate (APP) is a simple optic that provides coronagraphic suppression of diffraction without the need for any focal plane occulters. We present the design of a broadband APP (the BAPP) for LMIRCam that is optimised for the direct imaging of cool extrasolar giant planets around nearby stars at thermal infrared wavelengths. These optics have a high throughput and require no precision alignment. We cover earlier results using a chromatic APP, the basic principle and manufacture of the optic.

Original languageEnglish (US)
Title of host publicationOptical and Infrared Interferometry II
StatePublished - Dec 1 2010
Externally publishedYes
EventOptical and Infrared Interferometry II - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Publication series

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


OtherOptical and Infrared Interferometry II
Country/TerritoryUnited States
CitySan Diego, CA


  • Apodizing
  • Apodizing phase plate
  • Coronagraph
  • Extrasolar planets
  • LMIRcam
  • Thermal imaging

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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