Foto: Arthur Ashkin - Printscreen z Youtube/ OpticalSociety
Gérard Mourou - Wikimedia Commons/ Jérémy Barande / École polytechnique, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=51309872
Donna Strickland - University of Waterloo/ www.uwaterloo.ca
