Fabrication and characterization of filters for the Large Synoptic Survey Telescope

Robert W. Sprague; Patrick Flaherty; Andrew Houde; Michael Merrill; Michael Tatarek

doi:10.1117/12.2560833

13 December 2020 Fabrication and characterization of filters for the Large Synoptic Survey Telescope

Robert W. Sprague, Patrick Flaherty, Andrew Houde, Michael Merrill, Michael Tatarek

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 114479A (2020) https://doi.org/10.1117/12.2560833
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The optical filters for the LSST, at about 760 mm diameter, are the largest precision optical filters we at Materion have ever fabricated. These six wideband interference filters on fused silica substrates: u, g, r, I, z, y, will enable this instrument. We present our results of the fabrication and characterization of these challenging optical interference filters.

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Robert W. Sprague, Patrick Flaherty, Andrew Houde, Michael Merrill, and Michael Tatarek "Fabrication and characterization of filters for the Large Synoptic Survey Telescope", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114479A (13 December 2020); https://doi.org/10.1117/12.2560833

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