Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1543918 | Physica E: Low-dimensional Systems and Nanostructures | 2016 | 6 Pages |
Abstract
In this paper, the effect of plasmonic nanostructure on behavior of optical bistability and multistability in a four-level quantum system embedded in a unidirectional ring cavity has been studied. It is found that the distance between plasmonic nanostructures and a four-level quantum system is varied from 4.4 nm to 14.4 nm and has an essential role for controlling the threshold of optical bistability and multistability. Moreover, obtained results show that the group velocity of pulse propagation through the medium is strongly depended on the distance between the plasmonic nanostructure and the four-level quantum system.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Seyyed Hossein Asadpour, H. Rahimpour Soleimani,