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Enhancement of the infrared detection efficiency of silicon photon-counting avalanche photodiodes by use of silicon germanium absorbing layers

  • AY Loudon
  • , PA Hiskett
  • , GS Buller
  • , RT Carline
  • , DC Herbert
  • , WY Leong
  • , JG Rarity

    Research output: Contribution to journalArticle (Academic Journal)peer-review

    54 Citations (Scopus)

    Abstract

    An enhancement of the infrared detection efficiency of Si photon-counting detectors by inclusion of SiGe absorbing layers has been demonstrated for what is believed to be the first time. An improvement of 30 times in detection efficiency at a wavelength of 1210 nm compared with that of an all-Si structure operated under identical conditions has been measured. The Si/Si0.7Ge0.3 device is capable of room-temperature operation and has a response time of less than 300 ps.
    Translated title of the contributionEnhancement of the infrared detection efficiency of silicon photon-counting avalanche photodiodes by use of silicon germanium absorbing layers
    Original languageEnglish
    Pages (from-to)219 - 221
    Number of pages3
    JournalOptics Letters
    Volume27 (4)
    DOIs
    Publication statusPublished - Feb 2002

    Bibliographical note

    Publisher: Optical Society of America

    Research Groups and Themes

    • Photonics and Quantum

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