High-performance Raman memory with spatio-temporal reversal.

Autor: Vernaz-Gris P, Tranter AD, Everett JL, Leung AC, Paul KV, Campbell GT, Lam PK, Buchler BC
Jazyk: angličtina
Zdroj: Optics express [Opt Express] 2018 May 14; Vol. 26 (10), pp. 12424-12431.
DOI: 10.1364/OE.26.012424
Abstrakt: A number of techniques exist to use an ensemble of atoms as a quantum memory for light. Many of these propose to use backward retrieval as a way to improve the storage and recall efficiency. We report on a demonstration of an off-resonant Raman memory that uses backward retrieval to achieve an efficiency of 65 ± 6% at a storage time of one pulse duration. The memory has a characteristic decay time of 60 μs, corresponding to a delay-bandwidth product of 160.
Databáze: MEDLINE