Full control of nanoscale optical transmission with a composite metascreen

Phys Rev Lett. 2013 May 17;110(20):203903. doi: 10.1103/PhysRevLett.110.203903. Epub 2013 May 14.


By applying the optical nanocircuit concepts to metasurfaces, we propose an effective route to locally control light transmission over a deeply subwavelength scale. This concept realizes the optical equivalent of a transmit-array, whose use is demonstrated for light bending and focusing with unprecedented efficiency over a subwavelength distance, with crucial benefits for nano-optics applications. These findings may lead to large improvements in the manipulation of optical transmission and processing of nanoscale optical signals over conformal and Si-compatible substrates.