Ontology highlight
ABSTRACT:
SUBMITTER: Jeon H
PROVIDER: S-EPMC3086137 | biostudies-literature | 2011 Apr
REPOSITORIES: biostudies-literature
Jeon Hojeong H Schmidt Ray R Barton Jeremy E JE Hwang David J DJ Gamble Lara J LJ Castner David G DG Grigoropoulos Costas P CP Healy Kevin E KE
Journal of the American Chemical Society 20110331 16
We applied 2-photon laser ablation to write subdiffraction nanoscale chemical patterns into ultrathin polymer films under ambient conditions. Poly(ethylene glycol) methacrylate brush layers were prepared on quartz substrates via surface-initiated atom-transfer radical polymerization and ablated to expose the underlying substrate using the nonlinear 2-photon absorbance of a frequency-doubled Ti:sapphire femtosecond laser. Single-shot ablation thresholds of polymer films were ~1.5 times smaller th ...[more]