Temporal imaging for ultra-narrowband few-photon states of light

Research output: Contribution to journalJournal articleResearchpeer-review

  • Mateusz Mazelanik
  • Adam Leszczynski
  • Michal Lipka
  • Parniak, Michal
  • Wojciech Wasilewski

Plenty of quantum information protocols are enabled by manipulation and detection of photonic spectro-temporal degrees of freedom via light-matter interfaces. While present implementations are well suited for high-bandwidth photon sources such as quantum dots, they lack the high resolution required for intrinsically narrowband light-atom interactions. Here, we demonstrate far-field temporal imaging based on ac-Stark spatial spin-wave phase manipulation in a multimode gradient echo memory. We achieve a spectral resolution of 20 kHz with MHz-level bandwidth and an ultralow noise equivalent to 0.023 photons, enabling operation in the single-quantum regime. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Original languageEnglish
JournalOptica
Volume7
Issue number3
Pages (from-to)203-208
Number of pages6
ISSN2334-2536
DOIs
Publication statusPublished - 20 Mar 2020

    Research areas

  • QUANTUM MEMORY, COHERENCE TIME, CONVERSION, EFFICIENT, MAGNIFICATION, GENERATION, PAIRS

ID: 247441793