title: Dynamic wave field synthesis: enabling the generation of field distributions with a large space-bandwidth product.
abstract: We present a novel approach for the design and fabrication of multiplexed computer generated volume holograms (CGVH) which allow for a dynamic synthesis of arbitrary wave field distributions. To achieve this goal, we developed a hybrid system that consists of a CGVH as a static element and an electronically addressed spatial light modulator as the dynamic element. We thereby derived a new model for describing the scattering process within the inhomogeneous dielectric material of the hologram. This model is based on the linearization of the scattering process within the Rytov approximation and incorporates physical constraints that account for voxel based laser-lithography using micro-fabrication of the holograms in a nonlinear optical material. In this article we demonstrate that this system basically facilitates a high angular Bragg selectivity on the order of 1°. Additionally, it allows for a qualitatively low cross-talk dynamic synthesis of predefined wave fields with a much larger space-bandwidth product (SBWP ≥ 8.7 × 10(6)) as compared to the current state of the art in computer generated holography.
authors.forename: Edwin N
authors.initials: EN
authors.lastname: Kamau
authors.forename: Julian
authors.initials: J
authors.lastname: Heine
authors.forename: Claas
authors.initials: C
authors.lastname: Falldorf
authors.forename: Ralf B
authors.initials: RB
authors.lastname: Bergmann