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Proceedings Paper

Cryogenic VPH gratings for the CELT/TMT
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Paper Abstract

Characterization of Volume Phase Holographic gratings at cryogenic temperatures have been conducted using a new test facility at Caltech. The new test bench includes a cryostat that allows large angles for incident and diffracted light. Gratings under tests are shielded from thermal background, and precisely and uniformly temperature controlled. Preliminary results are presented and show little temperature dependence of the efficiency function.

Paper Details

Date Published: 24 September 2004
PDF: 7 pages
Proc. SPIE 5494, Optical Fabrication, Metrology, and Material Advancements for Telescopes, (24 September 2004); doi: 10.1117/12.552185
Show Author Affiliations
Sebastien Blais-Ouellette, California Institute of Technology (United States)
Photon etc. inc. (Canada)
Dani Guzman, California Institute of Technology (United States)
Amal Elgamil, California Institute of Technology (United States)
Richard Rallison, Wasatch Photonics (United States)


Published in SPIE Proceedings Vol. 5494:
Optical Fabrication, Metrology, and Material Advancements for Telescopes
Eli Atad-Ettedgui; Philippe Dierickx, Editor(s)

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