摘要
A method is proposed to realize accurate spatial complex modulation based on the spatial cross-modulation method（SCMM） via a phase-only spatial light modulator. The conventional SCMM cannot achieve high quality reconstruction, especially when the diffusion ratio is small. We propose an iterative algorithm in the calculation of a computer-generated hologram to implement accurate complex modulation. It enables us to generate a high quality reconstruction under a small diffusion ratio. The feasibility of the method is verified by both a numerical simulation and an optical experiment.
A method is proposed to realize accurate spatial complex modulation based on the spatial cross-modulation method（SCMM） via a phase-only spatial light modulator. The conventional SCMM cannot achieve high quality reconstruction, especially when the diffusion ratio is small. We propose an iterative algorithm in the calculation of a computer-generated hologram to implement accurate complex modulation. It enables us to generate a high quality reconstruction under a small diffusion ratio. The feasibility of the method is verified by both a numerical simulation and an optical experiment.
基金
supported by the National "973" Program of China (No. 2013CB328803)
the National "863" Program of China (Nos. 2015AA016301 and 2013AA013904)
