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 µrad (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 µrad (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.
Original language | English (US) |
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Pages (from-to) | 18152-18164 |
Number of pages | 13 |
Journal | Optics Express |
Volume | 25 |
Issue number | 15 |
DOIs | |
State | Published - Jul 24 2017 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Dive into the research topics of 'Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis'. Together they form a unique fingerprint.Datasets
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Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis
Choi, H. (Contributor), Trumper, I. (Creator), Dubin, M. (Creator), Zhao, W. (Contributor), Kim, D. W. (Creator) & Wenchuan, Z. (Contributor), figshare, 2017
DOI: 10.6084/m9.figshare.c.3824155, https://figshare.com/collections/Simultaneous_multi-segmented_mirror_orientation_test_system_using_a_digital_aperture_based_on_sheared_Fourier_analysis/3824155
Dataset
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2829091.avi
Choi, H. (Creator), Trumper, I. (Creator), Dubin, M. (Creator), Zhao, W. (Creator) & Kim, D. W. (Contributor), figshare, 2017
DOI: 10.6084/m9.figshare.5197138, https://opticapublishing.figshare.com/articles/media/2829091_avi/5197138
Dataset
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2829090.avi
Choi, H. (Creator), Trumper, I. (Creator), Dubin, M. (Creator), Zhao, W. (Creator) & Kim, D. W. (Contributor), Optica Publishing Group, 2017
DOI: 10.6084/m9.figshare.5197135.v1, https://opticapublishing.figshare.com/articles/media/2829090_avi/5197135/1
Dataset