High contrast internal and external coronagraph masks produced by various techniques

Kunjithapatham Balasubramanian, Daniel Wilson, Victor White, Richard Muller, Matthew Dickie, Karl Yee, Ronald Ruiz, Stuart Shaklan, Eric Cady, Brian Kern, Ruslan Belikov, Olivier Guyon, N. Jeremy Kasdin

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

17 Scopus citations

Abstract

High contrast internal and external coronagraphic imaging requires a variety of masks depending on different architectures to suppress star light. Various fabrication technologies are required to address a wide range of needs including gradient amplitude transmission, tunable phase profiles, ultra-low reflectivity, precise small scale features, and low-chromaticity. We present the approaches employed at JPL to produce pupil plane and image plane coronagraph masks, and lab-scale external occulter type masks by various techniques including electron beam, ion beam, deep reactive ion etching, and black silicon technologies with illustrative examples of each. Further development is in progress to produce circular masks of various kinds for obscured aperture telescopes.

Original languageEnglish (US)
Title of host publicationTechniques and Instrumentation for Detection of Exoplanets VI
DOIs
StatePublished - Dec 9 2013
EventTechniques and Instrumentation for Detection of Exoplanets VI - San Diego, CA, United States
Duration: Aug 26 2013Aug 29 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8864
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherTechniques and Instrumentation for Detection of Exoplanets VI
CountryUnited States
CitySan Diego, CA
Period8/26/138/29/13

All Science Journal Classification (ASJC) codes

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

Keywords

  • Coronagraph
  • Exoplanet
  • Mask
  • Occulter
  • PIAA
  • Shaped pupil

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