Results 81 to 90 of about 1,160,757 (195)

Second-harmonic illumination to enhance multispectral digital lensless holographic microscopy [PDF]

, 2016
Multispectral digital lensless holographic microscopy (MDLHM) operating with second-harmonic illumination is shown. Added to the improvement of the spatial resolution of the previously reported MDLHM operating with near-infrared illumination, this second-
Lancis, Jesús, Mendoza-Yero, Omel, Carbonell Leal, Miguel, García Sucerquia, Jorge   +3 more
core   +1 more source

High numerical aperture freeform-based illumination for compact lensless holographic microscopy

JPhys Photonics
Digital lensless holographic microscopy (DLHM) is a simple and cost-effective technique for retrieving label-free microscopic information from transparent samples.
Maria J Lopera, Dries Rosseel, Yunfeng Nie, Carlos Trujillo, Hugo Thienpont, Heidi Ottevaere   +5 more
doaj   +1 more source

X‐ray imaging methods for multiscale characterization of batteries

Bulletin of the Korean Chemical Society, Volume 46, Issue 4, Page 360-380, April 2025.
X‐ray imaging is revolutionizing battery research by offering multiscale insights into structure, composition, and chemistry, from micrometers to nanometers. Operando imaging captures real‐time changes during cycling, revealing dynamic processes and localized effects inaccessible through traditional methods.
Sebastian Kunze, Chihyun Nam, Hwiho Kim, Jinkyu Chung, Eunki Hong, Jaejung Song, Hanbi Choi, Jongwoo Lim   +7 more
wiley   +1 more source

A Miniaturized and Intelligent Lensless Holographic Imaging System With Auto-Focusing and Deep Learning-Based Object Detection for Label-Free Cell Classification

IEEE Photonics Journal
Cell detection and classification is a key technique for disease diagnosis, but conventional methods such as optical microscopy and flow cytometry have limitations in terms of field-of-view (FOV), throughput, cost, size, and operation complexity ...
Jin Chen, Wentao Han, Liangzun Fu, Zhihang Lv, Haotian Chen, Wenjing Fang, Jiale Hou, Haohan Yu, Xiwei Huang, Lingling Sun   +9 more
doaj   +1 more source

Chiral phase‐imaging meta‐sensors

Nanophotonics, Volume 14, Issue 7, Page 947-957, April 2025.
Abstract Light waves possess multiple degrees of freedom besides intensity, including phase and polarization, that often contain important information but require complex and bulky systems for their measurement. Here we report a pair of compact multifunctional photodetectors that can selectively measure the local phase gradient of, respectively, the ...
Ahmet M. Erturan, Jianing Liu, Maliheh A. Roueini, Nicolas Malamug, Lei Tian, Roberto Paiella   +5 more
wiley   +1 more source

Tabletop Lensless Imaging in the Extreme Ultraviolet with Reduced Radiation Dose

We demonstrate a lensless XUV microscopy platform using tabletop HHG and ghost imaging. Leveraging compressive sensing, we achieve high-fidelity, damage-minimized imaging without complex optics, establishing a new paradigm for accessible microscopy.
Thomas Siefke, Monalisa Mallick, Sukyoon Oh, Christian Spielmann   +3 more
core   +1 more source

A super-resolution scanning algorithm for lensless microfluidic imaging using the dual-line array image sensor.

PLoS ONE, 2020
The lensless optical fluid microscopy is of great significance to the miniaturization, portability and low cost development of cell detection instruments.
Dian Tian, Ningmei Yu, Zhengpeng Li, Shuaijun Li, Na Li   +4 more
doaj   +1 more source

In vivo lensless microscopy via a phase mask generating diffraction patterns with high-contrast contours. [PDF]

Nat Biomed Eng, 2022
Adams JK, Yan D, Wu J, Boominathan V, Gao S, Rodriguez AV, Kim S, Carns J, Richards-Kortum R, Kemere C, Veeraraghavan A, Robinson JT.   +11 more
europepmc   +1 more source

Lensless in-line digital holography for dynamic applications

, 2008
Digital holography (DH), as a tool of optical metrology, is able to address the challenges of recent requirements from technological developments. The aim of the present work is to develop digital dynamic holography as a metrological tool for both ...
Singh, Vijay Raj
core   +1 more source

High-Fidelity Scanning-Free Lensless Microscopy via Adaptive OPD-Domain Fusion for Live-Cell and Tissue Imaging

Photonics
Multi-wavelength lensless microscopy enables high-speed, wide-field, and high-throughput imaging, making it highly attractive for modern biomedical applications.
Jiajia Wu, Yining Li, Yuheng Luo, Leiting Pan, Pengming Song, Qiang Xu   +5 more
doaj   +1 more source