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

Heejoo Choi, Isaac Trumper, Matthew B Dubin, Wenchuan Zhao, Dae Wook Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)18152-18164
Number of pages13
JournalOptics Express
Volume25
Issue number15
DOIs
StatePublished - Jul 24 2017

Fingerprint

segmented mirrors
Fourier analysis
apertures
mirrors
CMOS
cameras
time measurement

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis. / Choi, Heejoo; Trumper, Isaac; Dubin, Matthew B; Zhao, Wenchuan; Kim, Dae Wook.

In: Optics Express, Vol. 25, No. 15, 24.07.2017, p. 18152-18164.

Research output: Contribution to journalArticle

Choi, Heejoo ; Trumper, Isaac ; Dubin, Matthew B ; Zhao, Wenchuan ; Kim, Dae Wook. / Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis. In: Optics Express. 2017 ; Vol. 25, No. 15. pp. 18152-18164.
@article{8a71ee612bca4d91abdbabd90c5e72b9,
title = "Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis",
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.",
author = "Heejoo Choi and Isaac Trumper and Dubin, {Matthew B} and Wenchuan Zhao and Kim, {Dae Wook}",
year = "2017",
month = "7",
day = "24",
doi = "10.1364/OE.25.018152",
language = "English (US)",
volume = "25",
pages = "18152--18164",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "15",

}

TY - JOUR

T1 - Simultaneous multi-segmented mirror orientation test system using a digital aperture based on sheared Fourier analysis

AU - Choi, Heejoo

AU - Trumper, Isaac

AU - Dubin, Matthew B

AU - Zhao, Wenchuan

AU - Kim, Dae Wook

PY - 2017/7/24

Y1 - 2017/7/24

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85025808412&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85025808412&partnerID=8YFLogxK

U2 - 10.1364/OE.25.018152

DO - 10.1364/OE.25.018152

M3 - Article

AN - SCOPUS:85025808412

VL - 25

SP - 18152

EP - 18164

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 15

ER -