Cryogenic tests of volume-phase holographic gratings: results at 100 K

Details Cryogenic tests of volume-phase holographic gratings: results at 100 K Cryogenic tests of volume-phase holographic gratings: results at 100 K

2006-09-04

arxiv.org/abs/astro-ph/0609069v1

Appl.Opt.45:5923-5928,2006

Astronomy and Astrophysics

Astrophysics

10 pages, 9 figures

Scientific paper

10.1364/AO.45.005923

We present results from cryogenic tests of Volume-Phase Holographic(VPH) gratings at 100 K. The aims of these tests are to see whether the diffraction efficiency as a function of wavelength is significantly different at a low temperature from that at room temperature and to see how the performance of a VPH grating is affected by a number of thermal cycles. We have completed 10 cycles between room temperature and 100 $K$, and find no clear evidence that the diffraction efficiency changes with temperature or with successive thermal cycle.

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