ArticleScientific reports2026
A two-step tilt compensation method for off-axis holographic displays.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Accurate diffraction between non-parallel planes is essential for holographic displays employing tilted spatial light modulators (SLMs). However, applying the standard angular spectrum method (ASM) directly to a tilted plane leads to geometric distortion and spectral aliasing. We present a two-step propagation method and its validation by experiments. The proposed method combines the standard ASM with a spatial-domain rotational transformation. The target image is first back-propagated to a parallel intermediate plane, then geometrically remapped onto the tilted SLM with phase correction. Implemented on an off-axis holographic display with [Formula: see text] and [Formula: see text] tilted SLM which leads to a large steering angle between the incident and reflected beam, the method is evaluated with multi-depth and multi-angle reconstructions. Results show improved image fidelity, stable depth performance, and robust compensation of off-axis holographic displays.
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