Deterministic figure correction of piezoelectrically adjustable slumped glass optics

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

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Thin x-ray optics with high angular resolution (≤ 0.5 arcsec) over a wide field of view enable the study of a number of astrophysically important topics and feature prominently in Lynx, a next-generation x-ray observatory concept currently under NASA study. In an effort to address this technology need, piezoelectrically adjustable, thin mirror segments capable of figure correction after mounting and on-orbit are under development. We report on the fabrication and characterization of an adjustable cylindrical slumped glass optic. This optic has realized 100% piezoelectric cell yield and employs lithographically patterned traces and anisotropic conductive film connections to address the piezoelectric cells. In addition, the measured responses of the piezoelectric cells are found to be in good agreement with finite-element analysis models. While the optic as manufactured is outside the range of absolute figure correction, simulated corrections using the measured responses of the piezoelectric cells are found to improve 5 to 10 arcsec mirrors to 1 to 3 arcsec [half-power diameter (HPD), single reflection at 1 keV]. Moreover, a measured relative figure change which would correct the figure of a representative slumped glass piece from 6.7 to 1.2 arcsec HPD is empirically demonstrated. We employ finite-element analysis-modeled influence functions to understand the current frequency limitations of the correction algorithm employed and identify a path toward achieving subarcsecond corrections.

Original languageEnglish (US)
Article number019004
JournalJournal of Astronomical Telescopes, Instruments, and Systems
Volume4
Issue number1
DOIs
StatePublished - Jan 1 2018

Fingerprint

Optics
glass
optics
Glass
cells
Finite element method
X rays
Conductive films
mirrors
Optical resolving power
x ray optics
Observatories
Mountings
NASA
mounting
Mirrors
field of view
Orbits
angular resolution
observatories

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Instrumentation
  • Astronomy and Astrophysics
  • Mechanical Engineering
  • Space and Planetary Science

Cite this

DeRoo, C. T., Allured, R., Cotroneo, V., Hertz, E., Marquez, V., Reid, P. B., ... Tendulkar, M. (2018). Deterministic figure correction of piezoelectrically adjustable slumped glass optics. Journal of Astronomical Telescopes, Instruments, and Systems, 4(1), [019004]. https://doi.org/10.1117/1.JATIS.4.1.019004
DeRoo, Casey T. ; Allured, Ryan ; Cotroneo, Vincenzo ; Hertz, Edward ; Marquez, Vanessa ; Reid, Paul B. ; Schwartz, Eric D. ; Vikhlinin, Alexey A. ; Trolier-McKinstry, Susan E. ; Walker, Julian ; Jackson, Thomas Nelson ; Liu, Tianning ; Tendulkar, Mohit. / Deterministic figure correction of piezoelectrically adjustable slumped glass optics. In: Journal of Astronomical Telescopes, Instruments, and Systems. 2018 ; Vol. 4, No. 1.
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DeRoo, CT, Allured, R, Cotroneo, V, Hertz, E, Marquez, V, Reid, PB, Schwartz, ED, Vikhlinin, AA, Trolier-McKinstry, SE, Walker, J, Jackson, TN, Liu, T & Tendulkar, M 2018, 'Deterministic figure correction of piezoelectrically adjustable slumped glass optics', Journal of Astronomical Telescopes, Instruments, and Systems, vol. 4, no. 1, 019004. https://doi.org/10.1117/1.JATIS.4.1.019004

Deterministic figure correction of piezoelectrically adjustable slumped glass optics. / DeRoo, Casey T.; Allured, Ryan; Cotroneo, Vincenzo; Hertz, Edward; Marquez, Vanessa; Reid, Paul B.; Schwartz, Eric D.; Vikhlinin, Alexey A.; Trolier-McKinstry, Susan E.; Walker, Julian; Jackson, Thomas Nelson; Liu, Tianning; Tendulkar, Mohit.

In: Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 4, No. 1, 019004, 01.01.2018.

Research output: Contribution to journalArticle

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T1 - Deterministic figure correction of piezoelectrically adjustable slumped glass optics

AU - DeRoo, Casey T.

AU - Allured, Ryan

AU - Cotroneo, Vincenzo

AU - Hertz, Edward

AU - Marquez, Vanessa

AU - Reid, Paul B.

AU - Schwartz, Eric D.

AU - Vikhlinin, Alexey A.

AU - Trolier-McKinstry, Susan E.

AU - Walker, Julian

AU - Jackson, Thomas Nelson

AU - Liu, Tianning

AU - Tendulkar, Mohit

PY - 2018/1/1

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N2 - Thin x-ray optics with high angular resolution (≤ 0.5 arcsec) over a wide field of view enable the study of a number of astrophysically important topics and feature prominently in Lynx, a next-generation x-ray observatory concept currently under NASA study. In an effort to address this technology need, piezoelectrically adjustable, thin mirror segments capable of figure correction after mounting and on-orbit are under development. We report on the fabrication and characterization of an adjustable cylindrical slumped glass optic. This optic has realized 100% piezoelectric cell yield and employs lithographically patterned traces and anisotropic conductive film connections to address the piezoelectric cells. In addition, the measured responses of the piezoelectric cells are found to be in good agreement with finite-element analysis models. While the optic as manufactured is outside the range of absolute figure correction, simulated corrections using the measured responses of the piezoelectric cells are found to improve 5 to 10 arcsec mirrors to 1 to 3 arcsec [half-power diameter (HPD), single reflection at 1 keV]. Moreover, a measured relative figure change which would correct the figure of a representative slumped glass piece from 6.7 to 1.2 arcsec HPD is empirically demonstrated. We employ finite-element analysis-modeled influence functions to understand the current frequency limitations of the correction algorithm employed and identify a path toward achieving subarcsecond corrections.

AB - Thin x-ray optics with high angular resolution (≤ 0.5 arcsec) over a wide field of view enable the study of a number of astrophysically important topics and feature prominently in Lynx, a next-generation x-ray observatory concept currently under NASA study. In an effort to address this technology need, piezoelectrically adjustable, thin mirror segments capable of figure correction after mounting and on-orbit are under development. We report on the fabrication and characterization of an adjustable cylindrical slumped glass optic. This optic has realized 100% piezoelectric cell yield and employs lithographically patterned traces and anisotropic conductive film connections to address the piezoelectric cells. In addition, the measured responses of the piezoelectric cells are found to be in good agreement with finite-element analysis models. While the optic as manufactured is outside the range of absolute figure correction, simulated corrections using the measured responses of the piezoelectric cells are found to improve 5 to 10 arcsec mirrors to 1 to 3 arcsec [half-power diameter (HPD), single reflection at 1 keV]. Moreover, a measured relative figure change which would correct the figure of a representative slumped glass piece from 6.7 to 1.2 arcsec HPD is empirically demonstrated. We employ finite-element analysis-modeled influence functions to understand the current frequency limitations of the correction algorithm employed and identify a path toward achieving subarcsecond corrections.

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