Parametric Mid-Spatial Frequency Surface Error Synthesis

Standard mid-spatial frequency tooling mark errors were parameterized into a series of characteristic features and systematically investigated. Diffraction encircled and ensquared energy radii at the 90% levels from an unpowered optical surface were determined as a function of the root-mean-square s...

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Main Authors: Timothy Hefferan, Logan Graves, Isaac Trumper, Soojong Pak, Daewook Kim
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/8/12/584
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author Timothy Hefferan
Logan Graves
Isaac Trumper
Soojong Pak
Daewook Kim
author_facet Timothy Hefferan
Logan Graves
Isaac Trumper
Soojong Pak
Daewook Kim
author_sort Timothy Hefferan
collection DOAJ
description Standard mid-spatial frequency tooling mark errors were parameterized into a series of characteristic features and systematically investigated. Diffraction encircled and ensquared energy radii at the 90% levels from an unpowered optical surface were determined as a function of the root-mean-square surface irregularity, characteristic tooling mark parameters, fold mirror rotation angle, and incident beam f-number. Tooling mark frequencies on the order of 20 cycles per aperture or less were considered. This subset encompasses small footprints on single-point diamond turned optics or large footprints on sub-aperture tool polished optics. Of the characteristic features, off-axis fabrication distance held the highest impact to encircled and ensquared energy radii. The transverse oscillation of a tooling path was found to be the second highest contributor. Both impacts increased with radial tooling mark frequency.
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spelling doaj.art-5a52a28a91274f31afe08e201a365b352023-11-23T10:09:12ZengMDPI AGPhotonics2304-67322021-12-0181258410.3390/photonics8120584Parametric Mid-Spatial Frequency Surface Error SynthesisTimothy Hefferan0Logan Graves1Isaac Trumper2Soojong Pak3Daewook Kim4Wyant College of Optical Sciences, University of Arizona, 1630 East University Blvd., Tucson, AZ 85721, USAELE Optics Inc., 405 East Wetmore, #117-260, Tucson, AZ 85705, USAELE Optics Inc., 405 East Wetmore, #117-260, Tucson, AZ 85705, USASchool of Space Research, Kyung Hee University, 1732 Deogyeong-daero, Yongin 17104, KoreaWyant College of Optical Sciences, University of Arizona, 1630 East University Blvd., Tucson, AZ 85721, USAStandard mid-spatial frequency tooling mark errors were parameterized into a series of characteristic features and systematically investigated. Diffraction encircled and ensquared energy radii at the 90% levels from an unpowered optical surface were determined as a function of the root-mean-square surface irregularity, characteristic tooling mark parameters, fold mirror rotation angle, and incident beam f-number. Tooling mark frequencies on the order of 20 cycles per aperture or less were considered. This subset encompasses small footprints on single-point diamond turned optics or large footprints on sub-aperture tool polished optics. Of the characteristic features, off-axis fabrication distance held the highest impact to encircled and ensquared energy radii. The transverse oscillation of a tooling path was found to be the second highest contributor. Both impacts increased with radial tooling mark frequency.https://www.mdpi.com/2304-6732/8/12/584fabricationmetrologytooling marksencircled energyperiodic structure
spellingShingle Timothy Hefferan
Logan Graves
Isaac Trumper
Soojong Pak
Daewook Kim
Parametric Mid-Spatial Frequency Surface Error Synthesis
Photonics
fabrication
metrology
tooling marks
encircled energy
periodic structure
title Parametric Mid-Spatial Frequency Surface Error Synthesis
title_full Parametric Mid-Spatial Frequency Surface Error Synthesis
title_fullStr Parametric Mid-Spatial Frequency Surface Error Synthesis
title_full_unstemmed Parametric Mid-Spatial Frequency Surface Error Synthesis
title_short Parametric Mid-Spatial Frequency Surface Error Synthesis
title_sort parametric mid spatial frequency surface error synthesis
topic fabrication
metrology
tooling marks
encircled energy
periodic structure
url https://www.mdpi.com/2304-6732/8/12/584
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AT daewookkim parametricmidspatialfrequencysurfaceerrorsynthesis