PIAA coronagraph for Origins Space telescope (OST) mid-infrared imager, spectrometer, coronagraph (MISC) instrument

N. Fujishiro, I. Sakon, K. Enyac, Olivier Guyon, J. Nishikawa, N. Murakami, T. Kotani, M. Tamura, A. Takahashi, T. L. Roelligg, K. Ennico-Smith

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

1 Scopus citations

Abstract

The Mid-infrared Imager, Spectrometer Coronagraph (MISC) instrument studied for the Origins Space Telescope (OST) Mission Concept 1 is designed to observe at mid-infrared (MIR) wavelengths ranging from 5 to 38 microns for OST. In the OST Mission Concept 1 study, MISC consists of three separate optical modules providing imaging, spectroscopy, and coronagraph capabilities. The MISC Coronagraph module (MISC COR) employs Phase-Induced Amplitude Apodization (PIAA) coronagraph (Guyon et al. 2014) in which pupil apodization is modified by reflection on mirrors and central starlight is blocked by focal plane mask and Lyot mask. The performance target of MISC COR is to achieve 10-7 contrast at 0.5" from the central star with covering wavelength of 6-38 microns using 2 optical channels. MISC COR will be a powerful tool to bring a revolutionary progress in exoplanet sciences. In this paper, we present detailed design of its optics and optomechanics, and discuss expected performances for a variety of combination of focal plane mask and Lyot mask.

Original languageEnglish (US)
Title of host publicationAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
EditorsRoland Geyl, Ramon Navarro
PublisherSPIE
Volume10706
ISBN (Print)9781510619654
DOIs
StatePublished - Jan 1 2018
Externally publishedYes
EventAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation III 2018 - Austin, United States
Duration: Jun 10 2018Jun 15 2018

Other

OtherAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation III 2018
CountryUnited States
CityAustin
Period6/10/186/15/18

Keywords

  • Coronography
  • Exoplanet
  • Ost
  • Planets and satellites: detection
  • Techniques: high angular resolution
  • Telescopes

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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  • Cite this

    Fujishiro, N., Sakon, I., Enyac, K., Guyon, O., Nishikawa, J., Murakami, N., Kotani, T., Tamura, M., Takahashi, A., Roelligg, T. L., & Ennico-Smith, K. (2018). PIAA coronagraph for Origins Space telescope (OST) mid-infrared imager, spectrometer, coronagraph (MISC) instrument. In R. Geyl, & R. Navarro (Eds.), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III (Vol. 10706). [107065N] SPIE. https://doi.org/10.1117/12.2313066