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Holographic Predictive Search Extending the Scope

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Document pages: 24 pages

Abstract: Holographic Predictive Search (HPS) is a novel approach to search-basedhologram generation that uses a mathematical understanding of the opticaltransforms to make informed optimisation decisions. Existing search techniquessuch as Direct Search (DS) and Simulated Annealing (SA) rely on triallingmodifications to a test hologram and observing the results. A formula is usedto decide whether the change should be accepted. HPS operates presciently,using knowledge of the underlying mathematical relationship to make exactchanges to the test hologram that guarantee the best outcome for that change.In this work, we extend the scope of the original research to cover both phaseand amplitude modulating Spatial Light Modulators (SLMs), both phase sensitiveand phase insensitive systems and both Fresnel and Fraunhofer diffraction. Inthe cases discussed, improvements of up to 10x are observed in final error andthe approach also offers significant performance benefits in generation time.This comes at the expense of increased complexity and loss of generality.

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