Attosecond Quantum Metrology via Highly Non-Degenerate Frequency-Entangled Photons

Colin P. Lualdi, Spencer J. Johnson, Kristina A. Meier, Paul G. Kwiat

Research output: Contribution to journalConference articlepeer-review


We have demonstrated highly non-degenerate frequency-entangled two-photon interference. A timing resolution of 7.3 attoseconds was observed with only 24,000 coincidence detections. Our system enables fast, single-photon-level nanometer-scale measurements with loss, background, and dispersion tolerance.

Original languageEnglish (US)
Article numberLM3F.2
JournalOptics InfoBase Conference Papers
StatePublished - 2022
EventLaser Science, LS 2022 - Rochester, United States
Duration: Oct 17 2022Oct 20 2022

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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