Charge-coupled devices detectors with high quantum efficiency at UV wavelengths

Erika T. Hamden, April D. Jewell, Charles A. Shapiro, Samuel R. Cheng, Tim M. Goodsall, John Hennessy, Michael Hoenk, Todd Jones, Sam Gordon, Hwei Ru Ong, David Schiminovich, D. Christopher Martin, Shouleh Nikzad

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

We report on multilayer high efficiency antireflection coating (ARC) design and development for use at UV wavelengths on CCDs and other Si-based detectors. We have previously demonstrated a set of single-layer coatings, which achieve >50% quantum efficiency (QE) in four bands from 130 to 300 nm. We now present multilayer coating designs that significantly outperform our previous work between 195 and 215 nm. Using up to 11 layers, we present several model designs to reach QE above 80%. We also demonstrate the successful performance of 5 and 11 layer ARCs on silicon and fused silica substrates. Finally, we present a five-layer coating deposited onto a thinned, delta-doped CCD and demonstrate external QE greater than 60% between 202 and 208 nm, with a peak of 67.6% at 206 nm.

Original languageEnglish (US)
Article number036003
JournalJournal of Astronomical Telescopes, Instruments, and Systems
Volume2
Issue number3
DOIs
StatePublished - Jul 1 2016
Externally publishedYes

Keywords

  • UV
  • antireflection coatings
  • charge-coupled devices
  • thin-films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Instrumentation
  • Astronomy and Astrophysics
  • Mechanical Engineering
  • Space and Planetary Science

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  • Cite this

    Hamden, E. T., Jewell, A. D., Shapiro, C. A., Cheng, S. R., Goodsall, T. M., Hennessy, J., Hoenk, M., Jones, T., Gordon, S., Ong, H. R., Schiminovich, D., Martin, D. C., & Nikzad, S. (2016). Charge-coupled devices detectors with high quantum efficiency at UV wavelengths. Journal of Astronomical Telescopes, Instruments, and Systems, 2(3), [036003]. https://doi.org/10.1117/1.JATIS.2.3.036003