Second-harmonic generation in graded metallic films.


We study the effective second-harmonic generation (SHG) susceptibility in graded metallic films by invoking the local field effects exactly and further numerically demonstrate that graded metallic films can serve as a novel optical material for producing a broad structure in both the linear and the SHG response and an enhancement in the SHG signal.

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@article{Huang2005SecondharmonicGI, title={Second-harmonic generation in graded metallic films.}, author={Ji Ping Huang and K. W. Yu}, journal={Optics letters}, year={2005}, volume={30 3}, pages={275-7} }