|
|||||
|
|
Effect of spontaneously generated coherence on Kerr nonlinearity in a four-level atomic system |
|
| Authors: | Xiang-an Yan Li-qiang Wang Wen-juan Jiang Jian-ping Song Yan-peng Zhang |
| Institution: | a Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China b School of Science, Xi'an Polytechnic University, Xi'an 710048, China c Department of Applied Mathematics and Applied Physics, Xi'an Post and Telecommunications College, Xi'an 710061, China |
| Abstract: | We propose a scheme for giant enhancement of the Kerr nonlinearity in a four-level atomic system in which spontaneously generated coherence is present. The physics mechanism of the enhancement of Kerr nonlinearity is mainly based on the presence of an extra atomic coherence induced by the spontaneously generated coherence. Numerical values obtained by solving the density matrix equations agree well with these exact analytical values. |
| Keywords: | 42 50 Gy 42 65 -k 42 50 Md |
| 本文献已被 ScienceDirect 等数据库收录！ | |