Mr. Eric D. Schwartz Profile

Eric D. Schwartz

Program Manager at Harvard-Smithsonian Ctr for Astrophysics

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Publications (12)

Proceedings Article | 9 September 2019 Presentation + Paper

The Lynx X-ray Observatory: revealing the invisible universe

Daniel Schwartz, Alexey Vikhlinin, Harvey Tananbaum, Mark Freeman, Grant Tremblay, Eric Schwartz, Jessica Gaskin, Douglas Swartz, Karen Gelmis, Kevin McCarley, Alexandra Dominguez

Proceedings Volume 11118, 111180K (2019) https://doi.org/10.1117/12.2533637

KEYWORDS: X-rays, Mirrors, Observatories, Space operations, Calibration, Cameras, Optical benches, X-ray imaging, Stars, X-ray detectors

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SPIE Journal Paper | 29 May 2019 Open Access

Lynx X-Ray Observatory: an overview

Jessica Gaskin, Douglas Swartz, Alexey Vikhlinin, Feryal Özel, Karen E. Gelmis, Jonathan Arenberg, Simon Bandler, Mark Bautz, Marta Civitani, Alexandra Dominguez, Megan Eckart, Abraham Falcone, Enectali Figueroa-Feliciano, Mark Freeman, Hans Günther, Keith Havey, Ralf Heilmann, Kiranmayee Kilaru, Ralph Kraft, Kevin McCarley, Randall McEntaffer, Giovanni Pareschi, William Purcell, Paul Reid, Mark Schattenburg, Daniel Schwartz, Eric Schwartz, Harvey Tananbaum, Grant Tremblay, William Zhang, John Zuhone

JATIS, Vol. 5, Issue 02, 021001, (May 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.021001

KEYWORDS: X-rays, Mirrors, Observatories, Galactic astronomy, Spatial resolution, Sensors, Space operations, X-ray imaging, Spectroscopy, Image resolution

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SPIE Journal Paper | 23 March 2019 Open Access

Thickness distribution of sputtered films on curved substrates for adjustable x-ray optics

Nathan Bishop, Julian Walker, Casey DeRoo, Tianning Liu, Mohit Tendulkar, Vincenzo Cotroneo, Edward Hertz, Vladimir Kradinov, Eric Schwartz, Paul Reid, Thomas Jackson, Susan Trolier-McKinstry

JATIS, Vol. 5, Issue 02, 021005, (March 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.021005

KEYWORDS: Mirrors, X-ray optics, Sputter deposition, Finite element methods, Glasses, Ferroelectric materials, X-rays, Actuators, Prototyping, Mathematical modeling

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Piezoelectric adjustable x-ray optics use magnetron sputtered thin film coatings on both sides of a thin curved glass substrate. To produce an optic suitable for a mission requiring high-angular resolution like “Lynx,” the integrated stresses (stress×thickness) of films on both sides of the optic must be approximately equal. Thus, understanding how sputtered film thickness distributions change for convex and concave curved substrates is necessary. To address this, thickness distributions of piezoelectric Pb0.995(Zr0.52Ti0.48)0.99Nb0.01O3 films are studied on flat, convex, and concave cylindrical substrates with a 220-mm radius of curvature. A mathematical model of the film thickness distribution is derived based on the geometric properties of the sputter tool and the substrate, and film thicknesses deposited with a commercially available sputtering tool are measured with spectroscopic ellipsometry. Experiment and modeled results for flat and convex curved substrates demonstrate good agreement, with average relative thickness distribution difference of 0.19% and −0.10% respectively, and a higher average difference of 1.4% for concave substrates. The calculated relative thickness distributions are applied to the convex and concave sides of a finite-element analysis (FEA) model of an adjustable x-ray optic prototype. The FEA model shows that, left uncorrected, the relative film thickness variation will yield an optic with an optical performance of 2.6 arc sec half power diameter (HPD) at 1 keV. However, the mirror figure can be corrected to diffraction-limited performance (0.3 arc sec HPD) using the piezoelectric adjusters, suggesting that the tolerances for applying a balanced integrated stress on both sides of a mirror are alleviated for adjustable x-ray optics as compared to traditional static x-ray mirrors. Furthermore, the piezoelectric adjusters will also allow changes in mirror figure over the telescope lifetime due to drift in the stress states of the x-ray surfaces to be corrected on orbit.

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Proceedings Article | 26 October 2018 Presentation + Paper

Progress in development of adjustable optics for x-ray astronomy

Vincenzo Cotroneo, Casey DeRoo, Thomas Jackson, Vladimir Kradinov, Tianning Liu, Vanessa Marquez, Paul Reid, Daniel Schwartz, Eric Schwartz, Mohit Tendulkar, Susan Trolier-McKinstry, Julian Walker

Proceedings Volume 10761, 1076109 (2018) https://doi.org/10.1117/12.2323283

KEYWORDS: Mirrors, Optics manufacturing, Ferroelectric materials, X-ray optics, Glasses, Prototyping, X-ray telescopes, Actuators, Crystals, Electronics

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Proceedings Article | 28 August 2018 Paper

Progress in ion beam figuring of very thin slumped glass plates for lightweight x-ray telescope

M. Civitani, M. Ghigo, J. Holyszko, G. Vecchi, S. Basso, V. Cotroneo, C. De Roo, E. Schwartz, P. Reid

Proceedings Volume 10699, 106990T (2018) https://doi.org/10.1117/12.2313599

KEYWORDS: Glasses, Ion beam finishing, Error analysis, Ion beams, Mirrors, X-ray telescopes, X-ray optics, Data acquisition, Silicon, Rutherfordium

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SPIE Journal Paper | 19 March 2018

Deterministic figure correction of piezoelectrically adjustable slumped glass optics

Casey DeRoo, Ryan Allured, Vincenzo Cotroneo, Edward Hertz, Vanessa Marquez, Paul Reid, Eric Schwartz, Alexey Vikhlinin, Susan Trolier-McKinstry, Julian Walker, Thomas Jackson, Tianning Liu, Mohit Tendulkar

JATIS, Vol. 4, Issue 01, 019004, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.019004

KEYWORDS: Mirrors, Iterated function systems, X-ray optics, Metrology, Glasses, Composites, Optics manufacturing, Finite element methods, Ferroelectric materials, X-rays

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Proceedings Article | 5 October 2017 Presentation + Paper

Thermal forming of glass substrates for adjustable optics

Vincenzo Cotroneo, Ryan Allured, Casey DeRoo, Kenneth Gurski, Vanessa Marquez, Paul Reid, Eric Schwartz

Proceedings Volume 10399, 103990Y (2017) https://doi.org/10.1117/12.2275738

KEYWORDS: Glasses, X-ray telescopes, Thermography, X-ray optics, Telescopes, X-rays, Observatories, Spatial resolution, Actuators, Surface finishing

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Proceedings Article | 21 September 2017 Presentation + Paper

Advancements in ion beam figuring of very thin glass plates

M. Civitani, M. Ghigo, J. Hołyszko, G. Vecchi, S. Basso, V. Cotroneo, C. DeRoo, E. Schwartz, P. Reid

Proceedings Volume 10399, 103991E (2017) https://doi.org/10.1117/12.2275555

KEYWORDS: Glasses, Ion beams, Mirrors, X-ray optics, Spatial resolution, X-ray telescopes, Statistical analysis, Shape analysis, Telescopes

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Proceedings Article | 29 August 2017 Presentation + Paper

Design and fabrication of adjustable x-ray optics using piezoelectric thin films

J. Walker, T. Liu, M. Tendulkar, D. Burrows, C. DeRoo, R. Allured, E. Hertz, V. Cotroneo, P. Reid, E. Schwartz, T. Jackson, S. Trolier-McKinstry

Proceedings Volume 10399, 103991K (2017) https://doi.org/10.1117/12.2275351

KEYWORDS: Mirrors, Thin films, X-ray optics, Glasses, Ferroelectric materials, X-rays, Electrodes, Modulation, Coating, Radio optics

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Proceedings Article | 29 August 2017 Presentation + Paper

Deterministic figure correction of piezoelectrically adjustable slumped glass optics

Proceedings Volume 10399, 103991M (2017) https://doi.org/10.1117/12.2275210

KEYWORDS: X-ray optics, Glasses, X-rays, Mirrors, Thin films, Actuators, Thermography, Optical fabrication, Metrology, Testing and analysis

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Proceedings Article | 27 October 2016 Paper

Toward large-area sub-arcsecond x-ray telescopes II

Stephen O'Dell, Ryan Allured, Andrew Ames, Michael Biskach, David Broadway, Ricardo Bruni, David Burrows, Jian Cao, Brandon Chalifoux, Kai-Wing Chan, Yip-Wah Chung, Vincenzo Cotroneo, Ronald Elsner, Jessica Gaskin, Mikhail Gubarev, Ralf Heilmann, Edward Hertz, Thomas Jackson, Kiranmayee Kilaru, Jeffrey Kolodziejczak, Ryan McClelland, Brian Ramsey, Paul Reid, Raul Riveros, Jacqueline Roche, Suzanne Romaine, Timo Saha, Mark Schattenburg, Daniel Schwartz, Eric Schwartz, Peter Solly, Susan Trolier-McKinstry, Melville Ulmer, Alexey Vikhlinin, Margeaux Wallace, Xiaoli Wang, David Windt, Youwei Yao, Shi Ye, William Zhang, Heng Zuo

Proceedings Volume 9965, 996507 (2016) https://doi.org/10.1117/12.2238247

KEYWORDS: X-ray telescopes, Mirrors, Coating, X-ray optics, Silicon, Ion implantation, X-rays, Thin films, Ions, Iridium

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Proceedings Article | 7 August 2014 Paper

An approach to fabrication of large adaptive optics mirrors

Eric Schwartz, Justin Rey, David Blaszak, Jeffrey Cavaco

Proceedings Volume 9151, 915108 (2014) https://doi.org/10.1117/12.2057377

KEYWORDS: Mirrors, Actuators, Silicon carbide, Adaptive optics, Polishing, Space telescopes, Deformable mirrors, Telescopes, Silicon, Surface finishing

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Showing 5 of 12 publications

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