Photoinduced Doughnut-Shaped Nanostructures
arXiv:1403.4720 · doi:10.1016/j.cplett.2014.03.021
Abstract
We show that an incoherent unpolarized single-beam illumination is able to photoinduce nano-doughnuts on the surface of azopolymer thin films. We demonstrate that individual doughnut-shaped nano-objects as well as clusters of several adjacent nano-doughnuts can be formed and tailored with wide range of typical sizes, thus providing a rich field for applications in nanophotonics and photochemistry.
13 pages, 3 figures, first version to chem. phys. lett. 2014