Abstract
We prepare arrays of gold nanoparticles that include both
noncentrosymmetric particles with a second-order
nonlinear optical response (active particles) and
centrosymmetric particles with no second-order response
(passive particles). The plasmon resonances of the active
and passive particles are at distinct wavelengths, yet
the passive particles modify the electromagnetic modes of
the structure in such a way that second-harmonic
generation from the active particles is enhanced. Our
results provide a completely new concept for optimizing
the nonlinear responses of metamaterials.
| Original language | English |
|---|---|
| Article number | 093902 |
| Number of pages | 5 |
| Journal | Physical Review Letters |
| Volume | 110 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A1 Journal article-refereed |