1.
Opt Express
; 26(10): 12424-12431, 2018 May 14.
Article
in English
| MEDLINE
| ID: mdl-29801280
ABSTRACT
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.