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    Fabrication of Pupil Masks for a New Infrared Exoplanet Imager at Keck Observatory

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    Author
    Li, J.
    Skemer, A.J.
    van Kooten, M.
    Kupke, R.
    MacDonald, N.
    Affiliation
    Department of Astronomy, University of Arizona
    Issue Date
    2022-08-29
    Keywords
    adaptive optics
    instrumentation
    integral field spectroscopy
    thermal infrared
    
    Metadata
    Show full item record
    Publisher
    SPIE
    Citation
    Jialin Li, Andrew Skemer, Maaike A. M. van Kooten, Renate Kupke, Nicholas MacDonald, "Fabrication of pupil masks for a new infrared exoplanet imager at Keck Observatory," Proc. SPIE 12185, Adaptive Optics Systems VIII, 121858N (29 August 2022); https://doi.org/10.1117/12.2630622
    Journal
    Proceedings of SPIE - The International Society for Optical Engineering
    Rights
    © 2022 SPIE. (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES) is an instrument being designed to perform direct imaging of exoplanets in the mid-infrared (2-5 µm) with the Adaptive Optics System of W.M. Keck Observatory. To eliminate unwanted thermal infrared radiation, SCALES utilizes both a cold stop for excluding background radiation and a vector vortex coronagraph with Lyot stops for starlight suppression. Optimal geometric masks have been designed. We simulate the propagation of light through the Lyot plane and analyze the on-axis images of stars in the K, L, and M band for the performance of the Lyot stops. Additionally, finalized cold stop and Lyot stop designs are presented along with evaluations on the effects of manufacturing tolerances and tilt in pupil planes caused by off-axis parabolic mirror relays. © 2022 SPIE.
    Note
    Immediate access
    ISSN
    0277-786X
    ISBN
    978-151065351-1
    DOI
    10.1117/12.2630622
    Version
    Final Published Version
    ae974a485f413a2113503eed53cd6c53
    10.1117/12.2630622
    Scopus Count
    Collections
    UA Faculty Publications

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