Results 71 to 80 of about 36,244,343 (204)

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +4 more
wiley   +1 more source

Deep‐Learning‐Based Denoising for Improved Phase Precision in Electron Holography of Electromagnetic Fields in Nanoscale Materials

Advanced Science, EarlyView.
Low‐dose electron holography is limited by shot noise, which buries weak phase signals. HoloDenoiser, a physics‐informed network that works simultaneously in the spatial and frequency domains, locates and protects the holographic sideband while suppressing noise in the hologram.
Ye Luo, Luyang Wang, Zhiling Yu, Xiaowen Chen, Xiaoyu Wang, Ya‐Hui Jia, Thibaud Denneulin, Yu Han, Rafal E. Dunin‐Borkowski, Fengshan Zheng, Qi Liu   +10 more
wiley   +1 more source

Structured illumination lensless digital holographic microscopy (SI-LDHM)

Frontiers in Physics
In this work, we propose a structured-illumination lensless digital holographic microscopy (SI-LDHM). SI-LDHM illuminates a sample with 24 structured illuminations (8 orientations × 3 phase shifts) and records the defocused interferogram formed by two ...
Juanjuan Zheng, Juanjuan Zheng, Juanjuan Zheng, Xuhong Guo, Xuhong Guo, Xuhong Guo, Ying Ma, Ying Ma, Ying Ma, Kai Wen, Kai Wen, Kai Wen, Sha An, Sha An, Sha An, Xiaofang Wang, Xiaofang Wang, Xiaofang Wang, Peng Gao, Peng Gao, Peng Gao, Jiaming Qian, Chao Zuo, Peng Gao   +23 more
doaj   +1 more source

Quantitative and Dynamic Phase Imaging of Biological Cells by the Use of the Digital Holographic Microscopy Based on a Beam Displacer Unit

IEEE Photonics Journal, 2018
The digital holographic microscopy can be used for the quantitative and dynamic phase imaging of biological cells, which has a very wide application in the fields of biological and medical sciences. To make the measurement system simple, compact, and low-
Jianglei Di, Ying Li, Kaiqiang Wang, Jianlin Zhao   +3 more
doaj   +1 more source

Micro/Nanoscale Acoustic Manipulation: From Particle Control to Autonomous Microswimmers

Advanced Science, EarlyView.
This conceptual framework illustrates acoustic technology as a multifunctional platform enabling passive particle manipulation across scales and autonomous propulsion of microswimmers. ABSTRACT Acoustic manipulation and propulsion technologies have emerged as powerful platforms for micro/nanoscale control, enabled by their non‐contact operation, label ...
Jiahui Chu, Lemin Zhang, Xu Wang, Wenzong Li, Yahua Liu   +4 more
wiley   +1 more source

Modern Optical Microscopy. Part 1

Journal of Biomedical Photonics & Engineering, 2023
The review presents to the reader the physical principles of various techniques of modern optical microscopy providing better quality and contrast of the image of the object under study and even overcoming the limitations caused by diffraction.
Darya V. Prokopova, Svetlana P. Kotova
doaj   +1 more source

Digital holographic microscopy in human sperm imaging [PDF]

Journal of Assisted Reproduction and Genetics, 2011
The aim of this study was to use digital holographic microscopy (DHM) in human sperm imaging and compare quantitative phase contrast of sperm heads in normozoospermia (NZ) and oligoasthenozoospermia (OAT).DHM spermatozoa imaging and repeated quantitative phase shift evaluation were used. Five NZ and 5 OAT samples were examined.
Igor, Crha, Jana, Zakova, Martin, Huser, Pavel, Ventruba, Eva, Lousova, Michal, Pohanka   +5 more
openaire   +2 more sources

Clinically Informed Intelligent Classification of Ovarian Cancer Cells by Label‐Free Holographic Imaging Flow Cytometry

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quantitative phase maps of single cells recorded in flow cytometry modality feed a hierarchical architecture of machine learning models for the label‐free identification of subtypes of ovarian cancer. The employment of a priori clinical information improves the classification performance, thus emulating the clinical application of liquid biopsy during ...
Daniele Pirone, Beatrice Cavina, Daniele Gaetano Sirico, Martina Mugnano, Vittorio Bianco, Lisa Miccio, Anna Myriam Perrone, Anna Maria Porcelli, Giuseppe Gasparre, Ivana Kurelac, Pasquale Memmolo, Pietro Ferraro   +11 more
wiley   +1 more source

Holography : The Usefulness of Digital Holographic Microscopy for Clinical Diagnostics

, 2017
Digital holographic (DH) microscopy is a digital high-resolution holographic imaging technique with the capacity of quantification of cellular conditions without any staining or labeling of cells.
Gjörloff Wingren, Anette, El-Schich, Zahra, Zahra El-Schich, Anette Gjörloff Wingren, Kamlund, Sofia, Birgit Janicke, El-Schich, Zahra,, Sofia Kamlund, Janicke, Birgit, Gjörloff Wingren, Anette,, Alm, Kersti, Kersti Alm   +11 more
core   +1 more source

Photothermal bubble: Dynamics, manipulation, and applications

Droplet, EarlyView.
As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
wiley   +1 more source