Results 61 to 70 of about 3,847 (222)

Single-Shot Wavefront Sensing in Focal Plane Imaging Using Transformer Networks

Optics
Wavefront sensing is an essential technique in optical imaging, adaptive optics, and atmospheric turbulence correction. Traditional wavefront reconstruction methods, including the Gerchberg–Saxton (GS) algorithm and phase diversity (PD) techniques, are ...
Hangning Kou, Jingliang Gu, Jiang You, Min Wan, Zixun Ye, Zhengjiao Xiang, Xian Yue   +6 more
doaj   +1 more source

Implementation and Optimization of a Random Illumination Microscope: towards Robustness for Microscopy Core Facility. [PDF]

Biol Cell
We present the implementation of our RIM prototype within a microscopy core facility. We describe the system setup, characterization, and optimization, and, as a proof of concept, we provide biological examples demonstrating the prototype's performance, here in resolving microvilli brush border intestine in adult C. elegans.
Soler N, Marchand GL, Dutertre S, Pinson X, Munish, Michaux G, Schmitt L, Bouvrais H, Caron C, Jolivet N, Bertolin G, Labouesse S, Mangeat T, Tramier M.   +13 more
europepmc   +2 more sources

Metalens‐Enabled Twisted Chromatic Dispersion

Advanced Physics Research, EarlyView.
We successfully demonstrate visible broadband twisted dispersion metalenses. As a proof of concept, we realized two distinct devices: the conical helical and the spring‐like dispersion‐controlled metalenses. These results rigorously validate the universality of our approach in customizing arbitrary continuous 3D dispersion trajectories, thereby ...
Shiyu Zheng, Boyan Fu, Hong Zhang, Shuming Wang   +3 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Deep learning bimodal frequency-selective digital holography by using a confocal dual-beam setup

New Journal of Physics
This paper proposes a bimodal digital holography technique based on deep learning, marking the first application of neural networks in frequency-selective holographic reconstruction.
Wanbin Zhang, Yanchen Ren, Yijian Feng, Xiangdong Sun, Jiangnan Hu, Weiyong Xing, Zhanjun Zhang   +6 more
doaj   +1 more source

Fresnel Coherent Diffraction Imaging Without Wavefront Priors

Photonics
Fresnel diffraction plays a critical role in coherent diffraction imaging and holography. Experimental setups for these techniques are often designed based on plane-wave illumination.
Ling Bai, Wen Cao, Yueshu Xu, Cuifang Kuang, Xu Liu   +4 more
doaj   +1 more source

Deep Learning Integration in Optical Microscopy: Advancements and Applications

Microscopy Research and Technique, EarlyView.
It explores the integration of DL into optical microscopy, focusing on key applications including image classification, segmentation, and computational reconstruction. ABSTRACT Optical microscopy is a cornerstone imaging technique in biomedical research, enabling visualization of subcellular structures beyond the resolution limit of the human eye ...
Pottumarthy Venkata Lahari, Sagnika Dutta, H. Deeksha, Samreen A. Patel, Budheswar Dehury, Nirmal Mazumder   +5 more
wiley   +1 more source

Adaptive Petal Reflector: In-Lab Software Configurable Optical Testing System Metrology and Modal Wavefront Reconstruction. [PDF]

Sensors (Basel), 2023
Nielsen CJG, Preumont A.
europepmc   +1 more source

Inverse Design of Mirror‐Symmetric Disordered Systems for Broadband Perfect Transmission

Laser &Photonics Reviews, EarlyView.
This work introduces an inverse design approach to achieve broadband perfect wave transmission in mirror‐symmetric disordered media. Leveraging symmetry simplifies optimization and enables control of multiple reflectionless states. Experiments in microwave waveguides confirm the design of exceptional points, bandpass filters, and broadband quasi ...
Zhazira Zhumabay, Clément Ferise, Vincent Pagneux, Stefan Rotter, Matthieu Davy   +4 more
wiley   +1 more source

Optimization of wavefront reconstruction accuracy for conjugate shift differential absolute testing. [PDF]

Sci Rep, 2022
Zhu X, Wang D, Zhang M, Liu B, Tian A, Jin G, Zheng X.   +6 more
europepmc   +1 more source