Mikhail Vasnetsov

Increasing the data density of free-space optical communications using orbital angular momentum

Johannes Courtial, Miles Padgett, Sonja Franke-Arnold, 2004, SPIE Optics + Photonics.

Angular momentum of optical vortex arrays.

Mark R. Dennis, Johannes Courtial, Roberta Zambrini, 2006, Optics express.

Vortex Flow of Light: “Spin” and “Orbital” Flows in a Circularly Polarized Paraxial Beam

Aleksandr Bekshaev, Mikhail Vasnetsov, A. Bekshaev, 2011 .