Enhancement of Kerr nonlinearity with vanishing absorption in a tripod scheme

• 来源期刊: 中国物理（英文版）
• 关键词: Kerr nonlinearity dark resonance transparency window Doppler broadening
• 年，卷（期）: 2007,（2）
• 页码范围: 429-434
• 页数: 6页
• 语种: 英文

摘要

The giant enhancement of Kerr nonlinearity in a four-level tripod type system is investigated theoretically. By tuning the value of the Rabi frequency of the coherent control field, owing to the double dark resonances, the giant enhanced Kerr nonlinearity can be achieved within the right transparency window. The influence of Doppler broadening is also discussed.