Towards four-dimensional photonics

Hannah M. Price,Tomoki Ozawa, Nathan Goldman, Oded Zilberberg, and Iacopo Carusotto
Proc. SPIE 9762, Advances in Photonics of Quantum Computing, Memory, and Communication IX, 97620V (March 16, 2016)

https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9762/1/Towards-four-dimensional-photonics/10.1117/12.2218539.short