The story in New Scientist (Pulse of light creates instant origami) has a short video which nicely shows the polymer sheet folding into 3 dimensional structures.
The paper by Michael Dickey, Jan Genzer and co-workers was also covered by Chemistry World (Shrinky Dink origami powered by heat).
… And finally here’s the original research paper
Self-folding of polymer sheets using local light absorption
Y Liu, J K Boyles, J Genzer and M Dickey
Soft Matter, 2011