Slanted VPHGs in astronomical instrumentation: tests and perspectives

摘要

Volume phase holographic gratings (VPHGs) are dispersing elements widely used in astronomical instrumentationthanks to some unique features (for example, the peak efficiency can reach 95%). The introduction of a slant angle to thefringes allow an increased versatility of these elements. The efficiencies of some samples produced by Kaiser OpticalSystems Inc. are reported and discussed. Moreover, some cases of interest in the astronomical field are reported.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.