Development of sintered-SiC and C/SiC mirrors for cryogenic telescope

Giuseppe Mondello; Andrea Novi; Christophe Devilliers

doi:10.1117/12.550765

24 September 2004 Development of sintered-SiC and C/SiC mirrors for cryogenic telescope

Giuseppe Mondello, Andrea Novi, Christophe Devilliers

Proceedings Volume 5494, Optical Fabrication, Metrology, and Material Advancements for Telescopes; (2004) https://doi.org/10.1117/12.550765
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Mirror prototypes in cold-pressed sintered SiC-54 and in Carbon-SiC (Cesic) have been designed, manufactured and optically tested. The scope of the work was the development of materials, technologies and manufacturing processes to get high quality optics very stable at cryotemperatures. The activity has been performed under ESA funding in the frame of the technology development for the JWST/NIRSpec program. A description of the polishing performance and final testing results are discussed.

Citation Download Citation

Giuseppe Mondello, Andrea Novi, and Christophe Devilliers "Development of sintered-SiC and C/SiC mirrors for cryogenic telescope", Proc. SPIE 5494, Optical Fabrication, Metrology, and Material Advancements for Telescopes, (24 September 2004); https://doi.org/10.1117/12.550765

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