Architecture for space-based exoplanet spectroscopy in the mid-infrared

Joseph J. Green; Samuel Case Bradford; Thomas Gautier; Michael Rodgers; Erkin Sidick; Gautam Vasisht

doi:10.1117/12.2314338

6 July 2018 Architecture for space-based exoplanet spectroscopy in the mid-infrared

Joseph J. Green, Samuel Case Bradford, Thomas Gautier, Michael Rodgers, Erkin Sidick, Gautam Vasisht

Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 106981C (2018) https://doi.org/10.1117/12.2314338
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Characterizing exoearths at wavelength about 10 micron offers many benefits over visible coronagraphy. Apart from providing direct access to a number of significant bio-signatures, direct-imaging in the mid-infrared can provide 1000 times or more relaxation to contrast requirements while greatly shortening the time-scales over which the system must be stable. This in turn enables tremendous relief to optical manufacturing, control and stability tolerances bringing them inline with current technology state of the art. In this paper, we explore a reference design that co-optimizes a large, segmented, linearized aperture telescope using one-dimensional phase-induced aperture apodization to provide highcontrast imaging for spectroscopic analysis. By rotating about a parent star, the chemical signatures of its planets are characterized while affording additional means for background suppression.

Conference Presentation

Citation Download Citation

Joseph J. Green, Samuel Case Bradford, Thomas Gautier, Michael Rodgers, Erkin Sidick, and Gautam Vasisht "Architecture for space-based exoplanet spectroscopy in the mid-infrared", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106981C (6 July 2018); https://doi.org/10.1117/12.2314338

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