VPH gratings for Telescopes, design and testing

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  • Author: R. D. Rallison, R. W. Rallison, L. D. Dickson
This paper contains a discussion of the elements involved in VPH grating design and fabrication as it has been practiced at Ralcon for and in behalf of the Telescope community in particular and also for LIDAR, general spectroscopy and telecom applications. We have delivered a few dozen prototypes to users at ESO, AAO, UNC, ODU, UT@A, GSFC, OAP, NOAO and a few other organizations. We have used left over gratings from some of these deliveries to make representative measurements and to report the results along with explanations of what, why and how we did it. Then we will propose some possible future improvements in size and performance.
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