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
白艳锋a, 杨文星a, 韩定安b, 喻小强a
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
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.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)