Nanoscale poling of polymer films.

Castagna, Riccardo; Milner, Alexander; Zyss, Joseph; Prior, Yehiam · Adv Mater · 2013

basic_science · Level V

Where this comes from

Abstract

Spots of second harmonic generation (SHG) are produced from nanopatterned sub-micrometer areas of nonlinear polymer media. Information is written by using a biased-AFM tip, a highly nonlinear polymer (poly(methyl metha-acrylate)-co-Disperse Red 1), and a novel "floating-tip nanolithography" (FTN) technique. Dipoles are oriented and aligned at the nanoscale under the biased-AFM tip, resulting in SHG production. The information is storable over weeks.