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Conferences > OFT > 2023 > OM2B > OM2B.5
  • Optica Design and Fabrication Congress 2023 (IODC, OFT)
  • Technical Digest Series (Optica Publishing Group, 2023),
  • paper OM2B.5

In-situ Index Determination for the Nancy Grace Roman Space Telescope (NGRST) Wide-field, Slitless, Imaging Prism Spectrometer

John Lehan, Evan Bray, Jay Voris, Catherine Marx, Bente Eegholm, Victor Chambers, and Qian Gong

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Abstract

The Prism’s dispersion is controlled by its wedge angle and refractive index as is its parfocality and aberrations. We employed precise measurements over the passband to correct the refractive indices for an accurate instrument model.

© 2023 The Author(s)

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