Mr. Ron Eng Profile

Ron Eng

SPIE Involvement:

Author | Science Fair Judge

Publications (31)

Proceedings Article | 1 October 2024 Presentation

Characterizing gravity sag at cryogenic temperatures

Tomasz Lis, Ron Eng, H. Phil Stahl

Proceedings Volume PC13134, PC1313401 (2024) https://doi.org/10.1117/12.3033230

KEYWORDS: Cryogenics, Aluminum mirrors

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Proceedings Article | 1 October 2024 Presentation

Adaptive whole-field LDV for real-time sub-nanometer characterization of LAM spatial dynamics

Vladimir Markov, Ron Eng, Stephen Kupiec

Proceedings Volume PC13134, PC1313403 (2024) https://doi.org/10.1117/12.3027890

KEYWORDS: Laser Doppler velocimetry, Mirrors, Vibration, Equipment, Design

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Proceedings Article | 5 October 2023 Presentation

Optical performance of additive manufactured aluminum, aluminum metal matrix composite, and lightweighted aluminum alloy mirrors at cryogenic temperature

Ron Eng, John Casstevens, Alex Few, Christopher Hopkins, Tomasz Lis, Jaganathan Ranganathan, H. Stahl

Proceedings Volume PC12677, PC126770B (2023) https://doi.org/10.1117/12.2676844

KEYWORDS: Aluminum, Optics manufacturing, Cryogenics, Metals, Matrices, Composites, Aluminum mirrors, Alloys, Additive manufacturing, Mirror structures

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Proceedings Article | 4 October 2023 Presentation + Paper

Whole-field real-time LDV for sub-nanometer characterization of LAM dynamic

Vladimir Markov, Ron Eng, Stephen Kupiec, Juan Abejar

Proceedings Volume PC12677, PC126770E (2023) https://doi.org/10.1117/12.2676176

KEYWORDS: Doppler effect, Astronomical imaging, Laser optics, Mirrors, Design and modelling, Vibration, Equipment

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Proceedings Article | 3 October 2022 Presentation + Paper

Picometer-range characterization of LAM dynamics with whole-field LDV

Vladimir Markov, Ron Eng, Stephen Kupiec, Juan Abejar, Stefan Forschner

Proceedings Volume 12221, 122210S (2022) https://doi.org/10.1117/12.2634242

KEYWORDS: Mirrors, Sensors, Inspection, Doppler effect, Signal processing, Phase shift keying, Modulators, Laser Doppler velocimetry, Data acquisition, Signal detection

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Proceedings Article | 28 September 2021 Presentation + Paper

Assembly of the IXPE mirror modules

Stephen Bongiorno, Jeffery Kolodziejczak, Kiranmayee Kilaru, Ron Eng, Mark Stahl, Wayne Baumgartner, Nicholas Thomas, Jaganathan Ranganathan, Brian Ramsey, John Tucker

Proceedings Volume 11822, 118220Y (2021) https://doi.org/10.1117/12.2594316

KEYWORDS: Distortion, X-rays, Mirrors, Epoxies, Sensors, X-ray optics, Point spread functions, Calibration, X-ray imaging, Space operations

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Proceedings Article | 24 August 2021 Presentation + Paper

Predictive Thermal Control (PTC) technology to enable thermally stable telescopes: year four status

H. Philip Stahl, Thomas Brooks, Ron Eng, Tomasz Lis, Mark Stahl, Roy Young

Proceedings Volume 11820, 118200A (2021) https://doi.org/10.1117/12.2593733

KEYWORDS: Mirrors, Control systems, Telescopes, Thermal modeling, Wavefronts, Control systems design, Performance modeling, Objectives, 3D modeling, Temperature metrology

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Proceedings Article | 20 August 2020 Presentation + Paper

Predictive Thermal Control (PTC) technology to enable thermally stable telescopes: year three status

H. Philip Stahl, Thomas Brooks, Michael Effinger, Ron Eng, Roy Young

Proceedings Volume 11487, 114870T (2020) https://doi.org/10.1117/12.2568792

KEYWORDS: Mirrors, Control systems, Telescopes, Thermal modeling, Control systems design

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Proceedings Article | 17 September 2018 Presentation + Paper

Optothermal stability of large ULE and Zerodur mirrors

Thomas Brooks, Ron Eng, H. Phillip Stahl

Proceedings Volume 10743, 107430A (2018) https://doi.org/10.1117/12.2321275

KEYWORDS: Mirrors, Temperature metrology, Zerodur, Data modeling, Thermal effects, Mirror mounts, Lamps, Diodes, Finite element methods, Interferometry

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Proceedings Article | 17 September 2018 Presentation

Cryogenic optical and mechanical test result of a 1.5-meter lightweighted ULE mirror assembly (Conference Presentation)

Ron Eng

Proceedings Volume 10742, 1074202 (2018) https://doi.org/10.1117/12.2322736

KEYWORDS: Mirrors, Optical fabrication, Cryogenics, Optical testing, Optics manufacturing, Space mirrors, Computed tomography, Design for manufacturability, Lightweight mirrors, X-rays

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Proceedings Article | 6 September 2017 Presentation + Paper

Modeling the Extremely Lightweight Zerodur Mirror (ELZM) thermal soak test

Thomas Brooks, Ron Eng, Tony Hull, H. Philip Stahl

Proceedings Volume 10374, 103740E (2017) https://doi.org/10.1117/12.2274084

KEYWORDS: Mirrors, Zerodur, Thermal modeling, Temperature metrology, Lightweight mirrors, Thermal effects, Cryogenics, Space mirrors, Interferometry

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Proceedings Article | 27 August 2015 Paper

Status of the Advanced Mirror Technology Development (AMTD) phase 2 1.5m ULE mirror

Robert Egerman, Gary Matthews, Matthew Johnson, Albert Ferland, H. Stahl, Ron Eng, Michael Effinger

Proceedings Volume 9575, 95750L (2015) https://doi.org/10.1117/12.2188566

KEYWORDS: Mirrors, Space mirrors, Glasses, Ultraviolet radiation, Plano, Lightweight mirrors, Polishing, Finite element methods, Computer aided design, Hubble Space Telescope

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Proceedings Article | 28 August 2014 Paper

The development of stacked core technology for the fabrication of deep lightweight UV-quality space mirrors

Gary Matthews, Robert Egerman, Steven Maffett, H. Philip Stahl, Ron Eng, Michael Effinger

Proceedings Volume 9143, 91431U (2014) https://doi.org/10.1117/12.2055284

KEYWORDS: Mirrors, Space mirrors, Ions, Ultraviolet radiation, Space telescopes, Optical testing, Lightweight mirrors, Hubble Space Telescope, Glasses, Spatial frequencies

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Proceedings Article | 22 October 2013 Paper

Overview and recent accomplishments of the advanced mirror technology development (AMTD) for large aperture UVOIR space telescopes project

H. Philip Stahl, Marc Postman, Laura Abplanalp, William Arnold, Ron Eng, Anand Sivaramakrishnan

Proceedings Volume 8860, 88600Q (2013) https://doi.org/10.1117/12.2022362

KEYWORDS: Mirrors, Space telescopes, Systems modeling, Astrophysics, Exoplanets, Magnetism, Image segmentation, Interfaces, Point spread functions, Thermal modeling

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Proceedings Article | 30 September 2013 Paper

Processing of a stacked core mirror for UV applications

Gary Matthews, Charles Kirk, Steven Maffett, H. Philip Stahl, Calvin Abplanalp, Ron Eng, William Arnold

Proceedings Volume 8837, 88370A (2013) https://doi.org/10.1117/12.2024644

KEYWORDS: Mirrors, Ions, Ultraviolet radiation, Space mirrors, Space telescopes, Spatial frequencies, UV optics, Glasses, Lightweight mirrors, Hubble Space Telescope

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Proceedings Article | 30 September 2013 Paper

Cryogenic optical performance of a lightweighted mirror assembly for future space astronomical telescopes: correlating optical test results and thermal optical model

Ron Eng, William Arnold, Markus Baker, Ryan Bevan, Gregory Burdick, Michael Effinger, Darrell Gaddy, Brian Goode, Craig Hanson, William Hogue, Jeffrey Kegley, Charlie Kirk, Steven Maffett, Gary Matthews, Richard Siler, W. Scott Smith, H. Philip Stahl, John Tucker, Ernest Wright

Proceedings Volume 8837, 88370B (2013) https://doi.org/10.1117/12.2025393

KEYWORDS: Mirrors, Thermography, Optical fabrication, Space telescopes, Optical testing, Thermal modeling, Cryogenics, Abrasives, Helium, Optics manufacturing

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Proceedings Article | 15 October 2012 Paper

Progress of multi-beam long trace-profiler development

Mikhail Gubarev, Daniel Merthe, Kiranmayee Kilaru, Thomas Kester, Ron Eng, Brian Ramsey, Wayne McKinney, Peter Takacs, Valeriy Yashchuk

Proceedings Volume 8501, 85010B (2012) https://doi.org/10.1117/12.930056

KEYWORDS: Beam splitters, Fabry–Perot interferometers, Metrology, Coating, X-ray optics, Sensors, Mirrors, Interferometers, Optical fabrication, Fourier transforms

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Proceedings Article | 3 August 2010 Paper

Survey of interferometric techniques used to test JWST optical components

H. Philip Stahl, Chris Alongi, Andrea Arneson, Rob Bernier, Bob Brown, Dave Chaney, Glen Cole, Jay Daniel, Lee Dettmann, Ron Eng, Ben Gallagher, Robert Garfield, James Hadaway, Patrick Johnson, Allen Lee, Doug Leviton, Adam Magruder, Michael Messerly, Ankit Patel, Pat Reardon, John Schwenker, Martin Seilonen, Koby Smith, W. Scott Smith

Proceedings Volume 7790, 779002 (2010) https://doi.org/10.1117/12.862234

KEYWORDS: Mirrors, Interferometers, Metrology, James Webb Space Telescope, Optical testing, Computer generated holography, Optical components, Cryogenics, Interferometry, Optical fabrication

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Proceedings Article | 16 June 2006 Paper

Improved cryogenic testing capability at Marshall Space Flight Center's X-ray Cryogenic Facility

Jeff Kegley, Mark Baker, Jay Carpenter, Ron Eng, Harlan Haight, William Hogue, Jeff McCracken, Kevin Russell, Richard Siler, Ernie Wright

Proceedings Volume 6265, 62654E (2006) https://doi.org/10.1117/12.672096

KEYWORDS: Cryogenics, X-rays, Mirrors, James Webb Space Telescope, Helium, Optical testing, Optical fabrication, Space telescopes, Calibration, X-ray optics

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Proceedings Article | 15 June 2006 Paper

Preliminary evaluation of the vibration environment within JSC Chamber A using a simultaneous phase-shifting interferometer

James Hadaway, Ron Eng, John Speed, Joe Marzouk

Proceedings Volume 6265, 62653G (2006) https://doi.org/10.1117/12.670544

KEYWORDS: Interferometers, Mirrors, James Webb Space Telescope, Interferometry, Fluctuations and noise, Space telescopes, Interfaces, Phase shifts, Optical testing, Collimation

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Proceedings Article | 30 August 2005 Paper

Cryogenic performance of a lightweight silicon carbide mirror

Ron Eng, James Carpenter, Colby Foss, James Hadaway, Harlan Haight, William Hogue, David Kane, Jeffrey Kegley, H. Philip Stahl, Ernest Wright

Proceedings Volume 5868, 58680Q (2005) https://doi.org/10.1117/12.624292

KEYWORDS: Mirrors, Silicon carbide, Cryogenics, Optical testing, Diodes, Space telescopes, Lightweight mirrors, Space mirrors, Beryllium, Temperature metrology

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Proceedings Article | 12 October 2004 Paper

Cryogenic performance of lightweight SiC and C/SiC mirrors

James Hadaway, Ron Eng, H. Philip Stahl, James Carpenter, Jeffrey Kegley, William Hogue

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.552409

KEYWORDS: Mirrors, Silicon carbide, Cryogenics, Monochromatic aberrations, Temperature metrology, Polishing, Manufacturing, Silicon, Optical testing, Carbon

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Proceedings Article | 12 October 2004 Paper

Results of the beryllium AMSD mirror cryogenic optical testing

David Chaney, Robert Brown, Stephen Kendrick, Patrick Reardon, James Hadaway, Jay Carpenter, Ron Eng

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.549956

KEYWORDS: Mirrors, Cryogenics, Computer generated holography, Beryllium, James Webb Space Telescope, Temperature metrology, Actuators, Distortion, Polishing, Optical testing

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Proceedings Article | 22 December 2003 Paper

Interferometric measurement of the vibrational characteristics of light-weight mirrors

James Millerd, Mark Schmucker, John Hayes, Ron Eng, John Lassiter, H. Philip Stahl, Ted Rogers, James Hadaway, Joseph Geary

Proceedings Volume 5180, (2003) https://doi.org/10.1117/12.506305

KEYWORDS: Mirrors, Cameras, Interferometers, Phase measurement, Interferometry, Collimation, Modulation, Pulsed laser operation, Camera shutters, Acousto-optics

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Proceedings Article | 22 December 2003 Paper

Helium cryo testing of an SLMS (silicon lightweight mirrors) athermal optical assembly

Marc Jacoby, William Goodman, H. Philip Stahl, Andrew Keys, Jack Reily, Ron Eng, James Hadaway, William Hogue, Jeffrey Kegley, Richard Siler, Harlan Haight, John Tucker, Ernest Wright, James Carpenter, Jeff McCracken

Proceedings Volume 5180, (2003) https://doi.org/10.1117/12.508378

KEYWORDS: Spatial light modulators, Silicon, Cryogenics, Mirrors, Foam, Lightweight mirrors, Manufacturing, Helium, Optical fabrication, Prototyping

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Proceedings Article | 5 March 2003 Paper

New cryogenic optical test capability at Marshall Space Flight Center's Space Optics Manufacturing Technology Center

Jeff Kegley, Ron Eng, Robert Engberg, James Hadaway, William Hogue, J. Cary Reily, Kevin Russell, H. Philip Stahl, Ernest Wright

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461793

KEYWORDS: Helium, Cryogenics, Optical testing, Optics manufacturing, Mirrors, Aerospace engineering, Astronomical imaging, X-ray optics, Wavefronts, Diodes

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Proceedings Article | 5 March 2003 Paper

Advanced mirror system demonstrator cryogenic test error budget

Patrick Reardon, James Hadaway, Joseph Geary, Brian Robinson, H. Philip Stahl, Ron Eng

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461741

KEYWORDS: Mirrors, Sensors, Interferometers, Error analysis, Data storage, Cryogenics, Monochromatic aberrations, Data modeling, Computer generated holography, Wavefront sensors

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Proceedings Article | 20 June 2002 Paper

Interferometer for testing in vibration environments

Klaus Freischlad, Ron Eng, James Hadaway

Proceedings Volume 4777, (2002) https://doi.org/10.1117/12.472245

KEYWORDS: Interferometers, Mirrors, Optical testing, Cameras, Interferometry, Phase shifts, Data acquisition, Cryogenics, Wavefronts, Phase shifting

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Proceedings Article | 27 December 2001 Paper

Cryogenic optical testing results for the Subscale Beryllium Mirror Demonstrator (SBMD)

James Hadaway, Joseph Geary, Patrick Reardon, Bruce Peters, H. Philip Stahl, Ron Eng, John Keidel, Jeffrey Kegley, Timothy Reed, Donald Byrd

Proceedings Volume 4451, (2001) https://doi.org/10.1117/12.453625

KEYWORDS: Mirrors, Cryogenics, Photovoltaics, Optical testing, Monochromatic aberrations, Beryllium, Temperature metrology, Error analysis, Space telescopes, Wavefront sensors

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Proceedings Article | 27 December 2001 Paper

AMSD test error budget sensitivity analysis

Patrick Reardon, James Hadaway, Joseph Geary, Bruce Peters, H. Philip Stahl, Ron Eng, John Keidel, Jeffrey Kegley

Proceedings Volume 4451, (2001) https://doi.org/10.1117/12.453642

KEYWORDS: Mirrors, Interferometers, Monochromatic aberrations, Error analysis, Optics manufacturing, Geometrical optics, Sensors, Optical testing, Cryogenics, Optical alignment

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