Related Experiment Video
Updated: May 14, 2026
Advances in Nanoscale Infrared Spectroscopy to Explore Multiphase Polymeric Systems
Published on: June 23, 2023
Nanoscale poling of polymer films
Riccardo Castagna1, Alexander Milner, Joseph Zyss
1École Normale Supérieure de Cachan, Institute D'Alembert, 61 Avenue du Président Wilson, 94235 Cachan Cedex, France. riccardo.castagna@sns.it
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.
