Coherently tunable third-order nonlinearity in a nanojunction

Details Coherently tunable third-order nonlinearity in a nanojunction Coherently tunable third-order nonlinearity in a nanojunction

2005-07-29

arxiv.org/abs/physics/0507210v1

J. Phys. B: At. Mol. Opt. 38, L347-L355 (2005)

Physics

Optics

10 pages 5 figures

Scientific paper

10.1088/0953-4075/38/21/L01

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 \chi^{(3)}(\omega;\omega,\omega,-\omega)$ in the whole range from 0 to $2\pi$.

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