Sources:Optical Materials Today, 12(12), 16-24 (2009)
We review some recent approaches to transmission enhancement and light harvesting based on optical nano-antennas and metamaterials. Nano-cavity antennas are used to enhance the extraordinary transmission of TM-polarized light through vertical nano-slits in a metal film. The enhanced transmission of TE-polarized waves through an array of subwavelength-slits in a thin metal film at low frequencies is also investigated. Light harvesting with a metamaterial cloaking shell is also demonstrated.