arXiv physics/05072102005-07-29physics.optics

Coherently tunable third-order nonlinearity in a nanojunction

Vadim A. Markel

备注：: 10 pages 5 figures
发表信息：: J. Phys. B: At. Mol. Opt. 38, L347-L355 (2005)
DOI：: 10.1088/0953-4075/38/21/L01

英文摘要：

A possibility of tuning the phase of the third-order Kerr-type nonlinear susceptibility in a system consisting of two interacting metal nanospheres and a nonlinearly polarizable molecule is investigated theoretically and numerically. It is shown that by varying the relative inter-sphere separation, it is possible to tune the phase of the effective nonlinear susceptibility χ^{(3)}(ω;ω,ω,-ω)$ in the whole range from 0 to $2π$.

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