Work

Wavefront Line‐Scan Imaging Via a Single‐Pixel Detector

Year: 2026

Type: article

Abstract: Wavefront single-pixel imaging (WSPI) has emerged as a promising approach for simultaneous amplitude and phase reconstruction, especially in spectral wavebands where cameras are immature or even unavailable. However, conventional WSPIs suffer from limited imaging speed & range, and heavy pattern-data storage. Here, we demonstrate a wavefront line-scan imaging (WLSI) technique that integrates 1D spatial light modulation with single-pixel detection, enabling faster imaging in a large rectangular range with minimal pattern-data storage. A theoretical model is developed and validated by simulations and experiments. A digital micromirror device (DMD) worked in 1D, achieving a modulation rate of 90.9 kHz, enabling line-scan imaging at 2.8 ms per line without compressive down-sampling. Consequently, the WLSI achieves over 4-fold enhancement in imaging speed and significantly reduces the pattern-data storage to more than 5 orders of magnitude as compared to the WSPI, when reconstructing a wavefront of 256 × 256 pixels at full sampling. The push-broom WLSI extends the imaging range, enabling continuous acquisition in a long rectangular range. Combining the advantages of WSPI with the flexibility of line-scan imaging, we offer a potential solution for high-throughput amplitude and phase imaging of biological samples, defect detection of optical components, wavefront detection in special spectra, etc.

Source: Advanced Science

DOI: 10.1002/advs.75485

Authors: Nuo Liu, Aiping Zhai, Tingting Zheng, Wenjing Zhao, Dong Wang

Institution: Taiyuan University of Technology

Language: English

Topic: Random lasers and scattering media

Subfield: Acoustics and Ultrasonics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $6,730

Funder: National Natural Science Foundation of China