# Encoding complex fields by using a phase-only optical element: mitigation of pixel crosstalk effects

arXiv: https://arxiv.org/abs/1903.06046 · HTML: https://mlsanity.com/paper/1903.06046/

## Key facts

- Cited by 5 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 13 Mar 2019.

## Built on by (most cited first, 5 of 5)

- [Guidestar-Free Adaptive Optics with Asymmetric Apertures](https://mlsanity.com/paper/2602.07029/) (2026)
- [Differentiable optimization of the Debye-Wolf integral for light shaping and adaptive optics in two-photon microscopy](https://mlsanity.com/paper/2211.16930/) (2022)
- [P-Hologen: An End-to-End Generative Framework for Phase-Only Holograms](https://mlsanity.com/paper/2404.01330/) (2024)
- [Eyepiece-free pupil-optimized holographic near-eye displays](https://mlsanity.com/paper/2507.22420/) (2025)
- [Pupil Design for Computational Wavefront Estimation](https://mlsanity.com/paper/2604.00225/) (2026)

## Abstract (arXiv)

In this letter we report on the effects of pixel crosstalk on the experimental realization of a reported encoding method (Opt. Lett. 39, 1740 (2014)) with PA-LCoS SLMs. We found that, under Nyquist limit condition, about 70% of a single pixel cell can generate unexpected phase modulation. In order to approach uniform phase modulation, and consequently improve the quality of measured amplitude and phase images, a generalized sampling scheme is proposed. To corroborate our proposal, proper experiments were carried out. On this point, a particular implementation of the well-established phase shifting technique allows us to measure the retrieved complex field by using just a single camera.