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

Autor:	Mazelanik, Mateusz, Leszczyński, Adam, Lipka, Michał, Parniak, Michał, Wasilewski, Wojciech
Rok vydání:	2019
Předmět:	Quantum Physics Physics - Atomic Physics Physics - Optics
Zdroj:	Optica Vol. 7, Issue 3, pp. 203-208 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1364/OPTICA.382891
Popis:	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 narrow-band 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 spectral resolution of 20 kHz with MHz-level bandwidth and ultra-low noise equivalent to 0.023 photons, enabling operation in the single-quantum regime. Comment: 10 pages, 9 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1911.03995 Zobrazit plný text záznamu View this record from Arxiv