Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors

Robert M. Heath, Michael G. Tanner, Timothy D. Drysdale, Shigehito Miki, Vincenzo Giannini, Stefan A. Maier, Robert H. Hadfield

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Superconducting nanowire single photon detectors are rapidly emerging as a key infrared photon-counting technology. Two front-side-coupled silver dipole nanoantennas, simulated to have resonances at 1480 and 1525 nm, were fabricated in a two-step process. An enhancement of 50 to 130% in the system detection efficiency was observed when illuminating the antennas. This offers a pathway to increasing absorption into superconducting nanowires, creating larger active areas, and achieving more efficient detection at longer wavelengths.
Original languageEnglish
Pages (from-to)819-822
Number of pages4
JournalNano Letters
Issue number2
Early online date9 Jan 2015
Publication statusPublished - 11 Feb 2015

Keywords / Materials (for Non-textual outputs)

  • infrared detector
  • nanoantenna
  • superconducting nanowire
  • single photon detector


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