Multiparameter encrypted orbital angular momentum multiplexed holography based on multiramp helicoconical beams
Nian Zhang, Xing Xiong, Xiang Zhang, Xiao Yuan
Abstract
Optical orbital angular momentum (OAM) multiplexed holography has been implemented as an effective method for information encryption and storage. Multiramp helicoconical-OAM multiplexed holography is proposed and experimentally implemented. The mode selectivity of the multiramp mixed screw-edge dislocations, constant parameter K, and normalized factor are investigated, respectively, which demonstrates that those parameters can be used as additional coding degrees of freedom for holographic multiplexing. The combination of the topological charge and the other three parameters can provide a four-dimensional multiplexed holography and can enhance information capacity.
Topics & Concepts
MultiplexingHolographyOrbital angular momentum multiplexingAngular momentumEncryptionPhysicsOpticsComputer scienceTotal angular momentum quantum numberAngular momentum couplingQuantum mechanicsTelecommunicationsOperating systemOrbital Angular Momentum in OpticsMicrotubule and mitosis dynamicsLaser-Matter Interactions and Applications