Performances of NIR VPHGs at cryogenic temperatures

M. Insausti, F. Garzón, J. L. Rasilla, P. A. Blanche, P. Lemaire

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations


We summarize the performances measured at room temperature and in cryogenic conditions of a set of NIR Volume Phase Holographic Gratings (VPHGs) which can then be used in astronomical instrumentations. VPHGs are novel optical components which can replace standard transmission gratings. Instead of a surface modulation a diffraction index modulation printed in a volume of material generates the diffraction according to the required specifications. Results on transmission and wavefront deformation are presented and compared in the two temperature regimes. These results were achieved along the run of the Joint Research Action 6 of OPTICON FP6 programme whose participating institutions are Osservatorio Astronomico di Brera (INAF), Instituto de Astrofísica de Canarias, Centre Spatial de Liège, Politecnico di Milano and European Southern Observatory.

Original languageEnglish (US)
Title of host publicationAdvanced Optical and Mechanical Technologies in Telescopes and Instrumentation
StatePublished - 2008
EventAdvanced Optical and Mechanical Technologies in Telescopes and Instrumentation - Marseille, France
Duration: Jun 23 2008Jun 28 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherAdvanced Optical and Mechanical Technologies in Telescopes and Instrumentation


  • Cryogenic
  • NIR
  • VPHG

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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