Journal
OPTICS COMMUNICATIONS
Volume 457, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2019.124666
Keywords
Computer generated holography; Single-transform time-multiplexed; Holographic displays; One-step phase-retrieval
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Funding
- Engineering and Physical Sciences Research Council [EP/L016567/1, EP/L015455/1]
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This work describes a novel approach to time-multiplexed holographic projection on binary phase devices. Unlike other time-multiplexed algorithms where each frame is the inverse transform of independently modified target images, Single-Transform Time-Multiplexed (STTM) hologram generation produces multiple sub-frames from a single inverse transform. Uniformly spacing complex rotations on the diffraction field then allows the emulation of devices containing 2(N) modulation levels on binary devices by using.. sub-frames. In comparison to One-Step Phase Retrieval (OSPR), STTM produces lower mean squared error for up to N = 5 than the equivalent number of OSPR sub-frames with a generation time of 1/N of the equivalent OSPR frame. A mathematical justification of the STTM approach is presented and a hybrid approach is introduced allowing STTM to be used in conjunction with OSPR in order to combine performance benefits.
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