Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping

doi:10.1088/1674-1056/21/11/114208

中国物理B ›› 2012, Vol. 21 ›› Issue (11): 114208-114208.doi: 10.1088/1674-1056/21/11/114208

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping

白艳锋^a, 杨文星^a, 韩定安^b, 喻小强^a

a Department of Physics, Southeast University, Nanjing 210096, China;
b Department of Physics, Foshan University, Foshan 528000, China

收稿日期:2012-02-16 修回日期:2012-04-25 出版日期:2012-10-01 发布日期:2012-10-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10904015, 61008063, 11004030, and 11074036).

Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping

Bai Yan-Feng (白艳锋)^a, Yang Wen-Xing (杨文星)^a, Han Ding-An (韩定安)^b, Yu Xiao-Qiang (喻小强 )^a

a Department of Physics, Southeast University, Nanjing 210096, China;
b Department of Physics, Foshan University, Foshan 528000, China

Received:2012-02-16 Revised:2012-04-25 Online:2012-10-01 Published:2012-10-01
Contact: Bai Yan-Feng E-mail:yanfengbai@gmail.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10904015, 61008063, 11004030, and 11074036).

摘要/Abstract

摘要： 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 four-level 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.

关键词: Kerr nonlinearity, coherence induced by incoherent pumping, spontaneously generated coherence

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 four-level 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.

Key words: Kerr nonlinearity, coherence induced by incoherent pumping, spontaneously generated coherence

中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

42.50.Gy

42.65.-k (Nonlinear optics)

白艳锋, 杨文星, 韩定安, 喻小强 . Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping[J]. 中国物理B, 2012, 21(11): 114208-114208.

Bai Yan-Feng (白艳锋), Yang Wen-Xing (杨文星), Han Ding-An (韩定安), Yu Xiao-Qiang (喻小强 ). Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping[J]. Chin. Phys. B, 2012, 21(11): 114208-114208.

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Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping

Giant Kerr nonlinearity induced by interacting quantum coherences from decays and incoherent pumping

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