Imaging issues for interferometry with CGH null correctors

James H Burge, Chunyu Zhao, Ping Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Aspheric surfaces, such as telescope mirrors, are commonly measured using interferometry with computer generated hologram (CGH) null correctors. The interferometers can be made with high precision and low noise, and CGHs can control wavefront errors to accuracy approaching 1 nm for difficult aspheric surfaces. However, such optical systems are typically poorly suited for high performance imaging. The aspheric surface must be viewed through a CGH that was intentionally designed to introduce many hundreds of waves of aberration. The imaging aberrations create difficulties for the measurements by coupling both geometric and diffraction effects into the measurement. These issues are explored here, and we show how the use of larger holograms can mitigate these effects.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7739
DOIs
StatePublished - 2010
EventModern Technologies in Space- and Ground-Based Telescopes and Instrumentation - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Other

OtherModern Technologies in Space- and Ground-Based Telescopes and Instrumentation
CountryUnited States
CitySan Diego, CA
Period6/27/107/2/10

Fingerprint

Aspheric Surface
Corrector
Hologram
Holograms
Interferometry
Null
interferometry
Imaging
Aberrations
Aberration
Imaging techniques
aberration
Wavefronts
Telescopes
Interferometer
Optical systems
Wave Front
Optical System
Interferometers
low noise

Keywords

  • Aspherics
  • Computer generated holograms
  • Interferometry

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Burge, J. H., Zhao, C., & Zhou, P. (2010). Imaging issues for interferometry with CGH null correctors. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7739). [77390T] https://doi.org/10.1117/12.857810

Imaging issues for interferometry with CGH null correctors. / Burge, James H; Zhao, Chunyu; Zhou, Ping.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7739 2010. 77390T.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Burge, JH, Zhao, C & Zhou, P 2010, Imaging issues for interferometry with CGH null correctors. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7739, 77390T, Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation, San Diego, CA, United States, 6/27/10. https://doi.org/10.1117/12.857810
Burge JH, Zhao C, Zhou P. Imaging issues for interferometry with CGH null correctors. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7739. 2010. 77390T https://doi.org/10.1117/12.857810
Burge, James H ; Zhao, Chunyu ; Zhou, Ping. / Imaging issues for interferometry with CGH null correctors. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7739 2010.
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