Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping |
| |
| Authors: | Bai Yan-Feng a Yang Wen-Xing a Han Ding-An b and Yu Xiao-Qiang |
| |
| Institution: | a) a) Department of Physics,Southeast University,Nanjing 210096,China b) Department of Physics,Foshan University,Foshan 528000,China |
| |
| Abstract: | A scheme for generating the giant enhancement of the Kerr nonlinearity in a four-level system with the quantum coherences from the decays and the incoherent pumping is proposed.Compared with that generated in a general fourlevel system,the Kerr nonlinearity can be enhanced by several orders of magnitude with vanishing linear absorption.By using the numerical results,we show that the remarkable enhancement should be attributed to the interaction of the quantum coherences from the decays and the incoherent pumping. |
| |
| Keywords: | Kerr nonlinearity coherence induced by incoherent pumping spontaneously generatedcoherence |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
