Large-scale DCG transmission holographic gratings for astronomy

Pierre Alexandre Blanche, Serge Habraken, Philippe Lemaire, Claude Jamar

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations


The recent interest of the astronomer community for volume phase holographic gratings is directly related to the enhancement of spectrograph throughput since this kind of grating can rise higher diffraction efficiency. Indeed, dichromated gelatine technology has demonstrated capability for 70-90 % efficiency. From the heritage of several diffractive and holographic projects and applications, the Centre Spatial de Liege has recently decided to invest in the large-scale DCG grating technology. This paper will present the new facility which is now fully operational, its capability and first results obtained.

Original languageEnglish (US)
Pages (from-to)31-38
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2002
EventSpecialized Optical Developments in Astronomy - Waikoloa, HI, United States
Duration: Aug 25 2002Aug 26 2002


  • Dichromated gelatine
  • Grating
  • Holography
  • Spectrograph

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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