@article {wintz2015holographic, title = {Holographic metalens for switchable focusing of surface plasmons}, journal = {Nano letters}, volume = {15}, number = {5}, year = {2015}, pages = {3585{\textendash}3589}, publisher = {American Chemical Society}, author = {Daniel Wintz and Patrice Genevet and Ambrosio, Antonio and Alex Woolf and Capasso, Federico} }