Schulze, CRoux, FSDudley, Angela LRop, RDuparre, MForbes, A2015-08-192015-08-192015Schulze, C, Roux, F.S., Dudley, A.L, Rop, R, Duparre, M and Forbes, A.2015. Accelerated rotation with orbital angular momentum modes. Physical Review A Journal, vol. 91(4), 8 pp1050-2947http://hdl.handle.net/10204/8078Copyright: 2015 American Physical SocietyWe introduce a class of light field that angularly accelerates during propagation. We show that the acceleration (deceleration) may be controlled by adjustment of a single parameter, and tuned continuously, down to no acceleration at all. As the angular acceleration takes place in a bounded space, the azimuthal degree of freedom, such fields accelerate periodically as they propagate. Notably, the amount of angular acceleration is not limited by paraxial considerations, may be tailored for large accelerations over arbitrarily long distances, and can be engineered independently of the beam’s spatial extent. We discuss how such angularly accelerating light fields can maintain the conservation of angular momentum through an energy exchange mechanism across the field.enOrbital angular momentum modesAzimuthal degree of freedomArticleSchulze, C., Roux, F., Dudley, A. L., Rop, R., Duparre, M., & Forbes, A. (2015). Accelerated rotation with orbital angular momentum modes. http://hdl.handle.net/10204/8078Schulze, C, FS Roux, Angela L Dudley, R Rop, M Duparre, and A Forbes "Accelerated rotation with orbital angular momentum modes." (2015) http://hdl.handle.net/10204/8078Schulze C, Roux F, Dudley AL, Rop R, Duparre M, Forbes A. Accelerated rotation with orbital angular momentum modes. 2015; http://hdl.handle.net/10204/8078.TY - Article AU - Schulze, C AU - Roux, FS AU - Dudley, Angela L AU - Rop, R AU - Duparre, M AU - Forbes, A AB - We introduce a class of light field that angularly accelerates during propagation. We show that the acceleration (deceleration) may be controlled by adjustment of a single parameter, and tuned continuously, down to no acceleration at all. As the angular acceleration takes place in a bounded space, the azimuthal degree of freedom, such fields accelerate periodically as they propagate. Notably, the amount of angular acceleration is not limited by paraxial considerations, may be tailored for large accelerations over arbitrarily long distances, and can be engineered independently of the beam’s spatial extent. We discuss how such angularly accelerating light fields can maintain the conservation of angular momentum through an energy exchange mechanism across the field. DA - 2015 DB - ResearchSpace DP - CSIR KW - Orbital angular momentum modes KW - Azimuthal degree of freedom LK - https://researchspace.csir.co.za PY - 2015 SM - 1050-2947 T1 - Accelerated rotation with orbital angular momentum modes TI - Accelerated rotation with orbital angular momentum modes UR - http://hdl.handle.net/10204/8078 ER -