Fabrication of subwavelength beyond the diffraction limit: Laser direct writing on Au nano-film

https://www.eurekalert.org/news-releases/1063615

"nanosecond-laser-irradiated cantilevered scanning near-field optical atomic force microscopy probe tip...  writing  nanostructures on Au nanofilm without  mask or vacuum... 83.6 nm minimum linewidth,  167.8 ± 6.6 nm repeatable linewidth on Au nano-film... elliptical heat distribution generated different linewidths when tip scanned vertically/ horizontally... Au nanofilm melting instead of oxidation... high-temperature underneath tip, providing nano energy source for high-resolution... nanolithography, nanowelding"