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    Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis

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    Author
    Choi, Heejoo
    Trumper, Isaac
    Dubin, Matthew
    Zhao, Wenchuan
    Kim, Dae Wook
    Affiliation
    Univ Arizona, Coll Opt Sci
    Univ Arizona, Steward Observ
    Issue Date
    2017-07-19
    
    Metadata
    Show full item record
    Publisher
    OPTICAL SOC AMER
    Citation
    Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis 2017, 25 (15):18152 Optics Express
    Journal
    Optics Express
    Rights
    © 2017 Optical Society of America
    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
    This paper presents a simultaneous multi-segmented mirror orientation test system (SMOTS) using localized sheared images. A CMOS camera captures images of reflected 2D sinusoidal patterns from the test mirrors as their orientation changes. Surface orientation is measured to within 0.8 mu rad (0.16 arcseconds) for a flat mirror. In addition, we measure the variation of seven mirror segments simultaneously. Furthermore, SMOTS is applied to measure the orientation of two concave mirrors with an accuracy of 2.7 mu rad (0.56 arcseconds). The measurement time for seven segments is 0.07 s. This technique can monitor the mirror segment orientation in an open/closed-loop for various optical setups. (C) 2017 Optical Society of America
    Note
    Open access journal.
    ISSN
    1094-4087
    PubMed ID
    28789304
    DOI
    10.1364/OE.25.018152
    Version
    Final published version
    Sponsors
    Korea Basic Science Institute; Friends of Tucson Optics (FoTO) Endowed Scholarships in Optical Sciences
    Additional Links
    https://www.osapublishing.org/abstract.cfm?URI=oe-25-15-18152
    ae974a485f413a2113503eed53cd6c53
    10.1364/OE.25.018152
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