Diamond turned high precision PIAA optics and four mirror PIAA system for high contrast imaging of exo-planets

Kunjithapatham Balasubramanian, Eric Cady, Laurent Pueyo, Xin An, Stuart Shaklan, Olivier Guyon, Ruslan Belikov

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

2 Scopus citations

Abstract

Off-axis, high-sag PIAA optics for high contrast imaging present challenges in manufacturing and testing. With smaller form factors and consequently smaller surface deformations (< 80 microns), diamond turned fabrication of these mirrors becomes feasible. Though such a design reduces the system throughput, it still provides 2λ/D inner working angle. We report on the design, fabrication, measurements, and initial assessment of the novel PIAA optics in a coronagraph testbed. We also describe, for the first time, a four mirror PIAA coronagraph that relaxes apodizer requirements and significantly improves throughput while preserving the low-cost benefits.

Original languageEnglish (US)
Title of host publicationTechniques and Instrumentation for Detection of Exoplanets V
DOIs
StatePublished - Oct 11 2011
EventTechniques and Instrumentation for Detection of Exoplanets V - San Diego, CA, United States
Duration: Aug 23 2011Aug 24 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8151
ISSN (Print)0277-786X

Other

OtherTechniques and Instrumentation for Detection of Exoplanets V
CountryUnited States
CitySan Diego, CA
Period8/23/118/24/11

Keywords

  • Coronagraphy
  • PIAA
  • diamond-turning
  • phase-induced amplitude apodization

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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    Balasubramanian, K., Cady, E., Pueyo, L., An, X., Shaklan, S., Guyon, O., & Belikov, R. (2011). Diamond turned high precision PIAA optics and four mirror PIAA system for high contrast imaging of exo-planets. In Techniques and Instrumentation for Detection of Exoplanets V [815105] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8151). https://doi.org/10.1117/12.892849