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

被引：15
作者：
Mazelanik, Mateusz [1 ,2 ]
Leszczynski, Adam [1 ,2 ]
Lipka, Michal [1 ,2 ]
Parniak, Michal [1 ,3 ]
Wasilewski, Wojciech [1 ]
机构：
[1] Univ Warsaw, Ctr New Technol, Ctr Quantum Opt Technol, Banacha 2c, PL-02097 Warsaw, Poland
[2] Univ Warsaw, Fac Phys, Pasteura 5, PL-02093 Warsaw, Poland
[3] Univ Copenhagen, Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen, Denmark
来源：
OPTICA | 2020年 / 7卷 / 03期
关键词：
QUANTUM MEMORY; COHERENCE TIME; CONVERSION; EFFICIENT; MAGNIFICATION; GENERATION; PAIRS;
D O I：
10.1364/OPTICA.382891
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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
引用
收藏
页码：203 / 208
页数：6
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