Abstract

The second harmonic (SH) response of centrosymmetric materials is strongly suppresed at its bulk due to selection rules, but not at its surface. Thus, the surface of the nanoparticles in a composite meta-material may be a source of strong SH radiation, but only if their geometry is itself non-centrosymmetric. We present an efficient scheme for the calculation of SH generation of composites and use it explore the role played by geometry on efficiency.

© 2014 Optical Society of America