activity
20232026
most citedPtycho-endoscopy on a lensless ultrathin fiber bundle tip

28 citations · 35 across the 4 of their papers we have counts for

collaborators

5 papers

physics.optics2026

Gaussian-splatting ptychography via explicit and interpretable primitives

Qianhao Zhao, Zhixuan Hong, David Brady +9

Ptychography overcomes the limits of lenses by co-designing optics and computation. Yet prevailing implementations reconstruct on a pixel grid, where weakly-constrained modes drift…

physics.optics2026

Residual neural-field ptychography for dose-efficient electron, X-ray, and optical nanoscopy

Qianhao Zhao, Zhixuan Hong, Ruihai Wang +7

Ptychography spans from sub-angstrom to meter scales yet suffers from convergence instability and excessive data redundancy. Here we introduce self-correcting residual neural field…

physics.optics2025★ 7 cited

Deep-ultraviolet ptychographic pocket-scope (DART): mesoscale lensless molecular imaging with label-free spectroscopic contrast

Ruihai Wang, Qianhao Zhao, Julia Quinn +11

The mesoscale characterization of biological specimens has traditionally required compromises between resolution, field-of-view, depth-of-field, and molecular specificity, with mos…

physics.optics2024★ 28 cited

Ptycho-endoscopy on a lensless ultrathin fiber bundle tip

Pengming Song, Ruihai Wang, Lars Loetgering +8

Synthetic aperture radar (SAR) utilizes an aircraft-carried antenna to emit electromagnetic pulses and detect the returning echoes. As the aircraft travels across a designated area…

eess.SP2023

Set projection algorithms for blind ptychographic phase retrieval

Wenjie Mei, Andrew M. Maiden

Set projection algorithms are a class of algorithms used in ptychography to help improve the quality of the reconstructed images. The set projection step is important because it he…