Spatial optical memory based on coherent population oscillations
Related Experiment Video
Updated: Jun 15, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
A Eilam1, I Azuri, A V Sharypov
1Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
Abstract:
We show that a system characterized by long-lived coherent population oscillations (CPOs), such as a two-level system that decays via a shelving state, can be used to construct a spatial optical memory. In the presence of a cw control field, a field is generated at the four-wave mixing (FWM) frequency with the same spatial profile as the initial probe. When the control field is switched off, these spatial profiles are encoded in the CPOs of the ground and storage states. When the control field is switched on again, the probe and FWM fields are retrieved simultaneously with the same spatial profiles as the initial probe.
Related Concept Videos
Imaging Biological Samples with Optical Microscopy
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Sensory Memory
System of Memory
Understanding Memory
Long-Term Memory
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...

