Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Metrology measurements for large-aperture VPH gratings

[+] Author Affiliations
Jessica R. Zheng, Luke Gers, Jeroen Heijmans

Australian Astronomical Observatory (Australia)

Proc. SPIE 8838, Optical Manufacturing and Testing X, 88380G (September 7, 2013); doi:10.1117/12.2024493
Text Size: A A A
From Conference Volume 8838

  • Optical Manufacturing and Testing X
  • Oliver W. Fähnle; Ray Williamson; Dae Wook Kim
  • San Diego, California, United States | August 25, 2013

abstract

The High Efficiency and Resolution Multi Element Spectrograph (HERMES) for the Australian Astronomical Observatory (AAO) uses four large aperture, high angle of incidence volume phase holographic gratings (VPHG) for high resolution ‘Galactic archaeology’ spectroscopy. The large clear aperture, the high diffraction efficiency, the line frequency homogeneity, and mosaic alignment made manufacturing and testing challenging. We developed new metrology systems at the AAO to verify the performance of these VPH gratings. The measured diffraction efficiencies and line frequency of the VPH gratings received so far meet the vendor’s provided data. The wavefront quality for the Blue VPH grating is good but the Green and Red VPH gratings need to be post polishing. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Jessica R. Zheng ; Luke Gers and Jeroen Heijmans
" Metrology measurements for large-aperture VPH gratings ", Proc. SPIE 8838, Optical Manufacturing and Testing X, 88380G (September 7, 2013); doi:10.1117/12.2024493; http://dx.doi.org/10.1117/12.2024493


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.