131 citations · 881 across the 23 of their papers we have counts for
23 papers
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…
Ptychographic non-line-of-sight imaging for depth-resolved visualization of hidden objects
Pengming Song, Qianhao Zhao, Ruihai Wang +6
Non-line-of-sight (NLOS) imaging enables the visualization of objects hidden from direct view, with applications in surveillance, remote sensing, and light detection and ranging. H…
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…
Spatially-coded Fourier ptychography: flexible and detachable coded thin films for quantitative phase imaging with uniform phase transfer characteristics
Ruihai Wang, Liming Yang, Yujin Lee +8
Fourier ptychography (FP) is an enabling imaging technique that produces high-resolution complex-valued images with extended field coverages. However, when FP images a phase object…
Lensless polarimetric coded ptychography for high-resolution, high-throughput gigapixel birefringence imaging on a chip
Liming Yang, Ruihai Wang, Qianhao Zhao +7
Polarimetric imaging provides valuable insights into the polarization state of light interacting with a sample. It can infer crucial birefringence properties of bio-specimens witho…
Blood-coated sensor for high-throughput ptychographic cytometry on a Blu-ray disc
Shaowei Jiang, Chengfei Guo, Tianbo Wang +6
Blu-ray drive is an engineering masterpiece that integrates disc rotation, pickup head translation, and three lasers in a compact and portable format. Here we integrate a blood-coa…
Lensless coherent diffraction imaging based on spatial light modulator with unknown modulation curve
Hao Sha, Chao He, Shaowei Jiang +6
Lensless imaging is a popular research field for the advantages of small size, wide field-of-view and low aberration in recent years. However, some traditional lensless imaging met…
Optofluidic ptychography on a chip
Pengming Song, Chengfei Guo, Shaowei Jiang +6
We report the implementation of a fully on-chip, lensless microscopy technique termed optofluidic ptychography. This imaging modality complements the miniaturization provided by mi…
Resolution-enhanced parallel coded ptychography for high-throughput optical imaging
Shaowei Jiang, Chengfei Guo, Pengming Song +11
Ptychography is an enabling coherent diffraction imaging technique for both fundamental and applied sciences. Its applications in optical microscopy, however, fall short for its lo…
Ptychographic sensor for large-scale lensless microbial monitoring with high spatiotemporal resolution
Shaowei Jiang, Chengfei Guo, Zichao Bian +9
Traditional microbial detection methods often rely on the overall property of microbial cultures and cannot resolve individual growth event at high spatiotemporal resolution. As a…
High-throughput lensless whole slide imaging via continuous height-varying modulation of tilted sensor
Shaowei Jiang, Chengfei Guo, Patrick Hu +6
We report a new lensless microscopy configuration by integrating the concepts of transverse translational ptychography and defocus multi-height phase retrieval. In this approach, w…
Bypassing the resolution limit of diffractive zone plate optics via rotational Fourier ptychography
Chengfei Guo, Shaowei Jiang, Pengming Song +4
Diffractive zone plate optics uses a thin micro-structure pattern to alter the propagation direction of the incoming light wave. It has found important applications in extreme-wave…
Virtual brightfield and fluorescence staining for Fourier ptychography via unsupervised deep learning
Ruihai Wang, Pengming Song, Shaowei Jiang +6
Fourier ptychographic microscopy (FPM) is a computational approach geared towards creating high-resolution and large field-of-view images without mechanical scanning. To acquire co…
Super-resolved multispectral lensless microscopy via angle-tilted, wavelength-multiplexed ptychographic modulation
Pengming Song, Ruihai Wang, Jiakai Zhu +8
We report an angle-tilted, wavelength-multiplexed ptychographic modulation approach for multispectral lensless on-chip microscopy. In this approach, we illuminate the specimen with…
Autofocusing technologies for whole slide imaging and automated microscopy
Zichao Bian, Chengfei Guo, Shaowei Jiang +6
Whole slide imaging (WSI) has moved digital pathology closer to diagnostic practice in recent years. Due to the inherent tissue topography variability, accurate autofocusing remain…
OpenWSI: a low-cost, high-throughput whole slide imaging system via single-frame autofocusing and open-source hardware
Chengfei Guo, Zichao Bian, Shaowei Jiang +7
Recent advancements in whole slide imaging (WSI) have moved pathology closer to digital practice. Existing systems require precise mechanical control and the cost is prohibitive fo…
Wide-field, high-resolution lensless on-chip microscopy via near-field blind ptychographic modulation
Shaowei Jiang, Jiakai Zhu, Pengming Song +7
We report a novel lensless on-chip microscopy platform based on near-field blind ptychographic modulation. In this platform, we place a thin diffuser in between the object and the…
Ptychographic modulation engine (PME): a low-cost DIY microscope add-on for coherent super-resolution imaging
Zichao Bian, Shaowei Jiang, Pengming Song +4
Imaging of biological cells and tissues often relies on fluorescent labels, which offer high contrast with molecular specificity. The use of exogenous labeling agents, however, may…
Rapid and robust whole slide imaging based on LED-array illumination and color-multiplexed single-shot autofocusing
Shaowei Jiang, Zichao Bian, Xizhi Huang +4
Background: The use of whole slide imaging (WSI) for digital pathology has recently been cleared for primary diagnosis in the US. A conventional WSI system scans the tissue slide t…
Full-field Fourier ptychography (FFP): spatially varying pupil modeling and its application for rapid field-dependent aberration metrology
Pengming Song, Shaowei Jiang, He Zhang +3
Digital aberration measurement and removal play a prominent role in computational imaging platforms aimed at achieving simple and compact optical arrangements. A recent important c…
Super-resolution microscopy via ptychographic structured modulation of a diffuser
Pengming Song, Shaowei Jiang, He Zhang +4
We report a new coherent imaging technique, termed ptychographic structured modulation (PSM), for quantitative super-resolution microscopy. In this technique, we place a thin diffu…
Field-portable quantitative lensless microscopy based on translated speckle illumination and sub-sampled ptychographic phase retrieval
He Zhang, Zichao Bian, Shaowei Jiang +3
We report a compact, cost-effective and field-portable lensless imaging platform for quantitative microscopy. In this platform, the object is placed on top of an image sensor chip…
Axially-shifted pattern illumination for macroscale turbidity suppression and virtual volumetric confocal imaging without axial scanning
Shaowei Jiang, Jun Liao, Zichao Bian +4
Structured illumination has been widely used for optical sectioning and 3D surface recovery. In a typical implementation, multiple images under non-uniform pattern illumination are…