Results 61 to 70 of about 72,954 (249)

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

Advanced Photonics Research, EarlyView.
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

Efficient Phase Unwrapping Architecture for Digital Holographic Microscopy

Sensors, 2011
This paper presents a novel phase unwrapping architecture for accelerating the computational speed of digital holographic microscopy (DHM). A fast Fourier transform (FFT) based phase unwrapping algorithm providing a minimum squared error solution is ...
Wen-Jyi Hwang, Chau-Jern Cheng, Shih-Chang Cheng   +2 more
doaj   +1 more source

High‐Fidelity Computational Microscopy via Feature‐Domain Phase Retrieval

Advanced Science, EarlyView.
An innovative phase retrieval framework, termed FD‐PR, is uniquely established in the image's feature domain through the feature‐extracted, physical‐driven regression with interfaces for combining physics and image processing constraints. FD‐PR takes advantage of invariance components of an image against presences of model mismatch and uncertainty ...
Shuhe Zhang, An Pan, Hongbo Sun, Yidong Tan, Liangcai Cao   +4 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

Longitudinal, Multimodal Tracking Reveals Lasting Neurovascular Impact of Individual Microinfarcts

Advanced Science, EarlyView.
Jin et al. investigate the neurovascular impact of microinfarcts, revealing transient neural suppression with minimal cell death and recovery linked to vascular remodeling. Fast‐spiking interneurons exhibit reduced excitability, whereas regular‐spiking neurons showed increased bursting activity. Disruptions in low‐gamma phase locking suggest persistent
Yifu Jin, Fei He, Haad Rathore, Yingchu Sun, Jia‐ao Zhang, Xinyu Li, Rongkang Yin, Hanlin Zhu, Chong Xie, Lan Luan   +9 more
wiley   +1 more source

Ultrasound Mediated Cellular Deflection Results in Cellular Depolarization

Advanced Science, 2022
Ultrasound has been used to manipulate cells in both humans and animal models. While intramembrane cavitation and lipid clustering have been suggested as likely mechanisms, they lack experimental evidence. Here, high‐speed digital holographic microscopy (
Aditya Vasan, Jeremy Orosco, Uri Magaram, Marc Duque, Connor Weiss, Yusuf Tufail, Sreekanth H Chalasani, James Friend   +7 more
doaj   +1 more source

Object Plane Detection and Phase Retrieval from Single-Shot Holograms using Multi-Wavelength In-Line Holograph [PDF]

, 2018
Phase retrieval and the twin-image problem in digital in-line holographic microscopy can be resolved by iterative reconstruction routines. However, recovering the phase properties of an object in a hologram needs an object plane to be chosen correctly for reconstruction.
arxiv   +1 more source

A Smart Single‐Loop‐Mediated Isothermal Amplification Facilitates Flexible SNP Probe Design for On‐Site Rapid Differentiation of SARS‐CoV‐2 Omicron Variants

Advanced Science, EarlyView.
The ssLAMP method amplifies the nucleic acid of pathogen and identifies SNP mutations. By combining the portable detection device with smartphone‐based analysis software, enables rapid, on‐site SNP detection and genotyping of SARS‐Cov‐2 Omicron variants, providing a cost‐effective and field‐deployable solution for precise pathogen identification in ...
Qijie Lin, Hongchao Gou, Xiaoyun Qu, Kaiyuan Jia, Yuhui Deng, Dan Li, Qianyi Cai, Yucen Liang, Xiaozhen Xu, Yanbin Li, Jianhan Lin, Letian Li, Yuhang Jiang, Shouwen Du, Lingcong Deng, Bailing Yan, Ruidong Liu, Chang Li, Jianmin Zhang, Ming Liao   +19 more
wiley   +1 more source

Holographic microscopy for the three-dimensional exploration of light scattering from gold nanomarkers in biological media [PDF]

Novel Biophotonic Techniques and Applications Henricus J. C. M. Sterenborg; I. Alex Vitkin Munich, Germany | May 22, 2011, Munich : Germany (2011), 2012
The 3D structure of light scattering from dark-field illuminated live 3T3 cells marked with 40 nm gold nanomarkers is explored. For this purpose, we use a high resolution holographic microscope combining the off-axis heterodyne geometry and the phase-shifting acquisition of the digital holograms.
arxiv   +1 more source

Variable zoom digital in-line holographic microscopy

Optics and Lasers in Engineering, 2020
We report on a novel layout providing variable zoom in digital in-line holographic microscopy (VZ-DIHM). The implementation is in virtue of an electrically tunable lens (ETL) which enables to slightly shift the illumination source axial position without mechanical movement of any system component.
Sanz Sabater, Martin, Trusiak, Maciej, García Monreal, Javier, Micó Serrano, Vicente   +3 more
openaire   +4 more sources