Results 61 to 70 of about 1,860,088 (200)

Intrinsic Focus‐Like Light Concentration From Anti‐Resonant Hollow‐Core Fibers

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
The fundamental mode of hollow‐core waveguides is shown to produce intrinsic focus‐like light concentration in free space without external optics. Combined experiments and simulations reveal that this behavior originates from the non‐Gaussian nature of leaky modes, establishing a new mechanism for lensless beam shaping and compact optical interfacing ...
Shahrzad Hosseinabadi, Torsten Wieduwilt, Michael H. Frosz, Markus A. Schmidt   +3 more
wiley   +1 more source

Lensless imaging based on coherent backscattering in random media

AIP Advances, 2014
We studied lensless imaging due to coherent backscattering in random media both theoretically and experimentally. The point spread function of the lensless imaging system was derived.
Lei Xu, Hao Yang, Peilong Hong, Fang Bo, Jingjun Xu, Guoquan Zhang   +5 more
doaj   +1 more source

Extreme ultraviolet lensless imaging of biological specimen

, 2019
Imaging of biological specimen is one of the most important tools to investigate structures and functionalities in organic components. Improving the resolution of images into the nanometer range call for short wavelengths light sources and large aperture
Tuitje, F., Zürch, M., Tuitje, Frederik, Zürch, Michael, Spielmann, Christian, Helk, T., Helk, Tobias, Spielmann, C.   +7 more
core   +1 more source

A Simple Framework for 3D Lensless Imaging with Programmable Masks [PDF]

, 2021
Lensless cameras provide a framework to build thin imaging systems by replacing the lens in a conventional camera with an amplitude or phase mask near the sensor. Existing methods for lensless imaging can recover the depth and intensity of the scene, but
Zheng, Yucheng, Sankaranarayanan, Aswin C, Asif, M Salman, Hua, Yi   +3 more
core   +1 more source

Microfluidics on lensless, semiconductor optical image sensors: challenges and opportunities for democratization of biosensing at the micro-and nano-scale

Nanophotonics, 2023
Optical image sensors are 2D arrays of pixels that integrate semiconductor photodiodes and field effect transistors for efficient photon conversion and processing of generated electrons.
Hu Xinyue, Abbasi Reza, Wachsmann-Hogiu Sebastian   +2 more
doaj   +1 more source

Toward Intelligent Multimodal Holography for Real‐Time Chemical Imaging of Dynamic Ion Separation

Advanced Intelligent Discovery, Volume 2, Issue 4, August 2026.
Intelligent multimodal holography integrates digital off‐axis holography, spectroscopic imaging, and AI‐driven reconstruction to visualize ion transport and chemical dynamics in real time. In this perspective paper, we outline how this approach enables label‐free, chemically specific monitoring of complex environments and discuss its potential to ...
Giovanna Ricchiuti, Sarah I. Allec, Maxim Ziatdinov, Venkateshkumar Prabhakaran   +3 more
wiley   +1 more source

Lensless Multispectral Camera Based on a Coded Aperture Array

Sensors, 2021
Multispectral imaging can be applied to water quality monitoring, medical diagnosis, and other applications, but the principle of multispectral imaging is different from the principle of hyper-spectral imaging. Multispectral imaging is generally achieved
Jianwei Wang, Yan Zhao
doaj   +1 more source

The hard X‐ray ptychography endstation at the Taiwan Photon Source

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 841-847, May 2026.
The newly commissioned hard X‐ray ptychography endstation at the Taiwan Photon Source, TPS 25A2, is introduced, detailing the instrumental specifications and demonstrating a benchmark spatial resolution of 6.9 nm in 2D, showcased through the imaging of a standard test pattern, inorganic nanoparticles and a complex biological structure.Following our ...
Yi-Wei Tsai, Gung-Chian Yin, Bo-Yi Chen, Hsin-Wei Chen, Kang-Ching Chu, Chi-Yuan Cheng, Po-Wei Lee, Jhih-Min Lin, Chun-Yu Chen, Yu-Shan Huang   +9 more
wiley   +1 more source

AI‐Enabled Imaging for Pathogen Detection Under Stress Conditions: A Systematic Review

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 3, May 2026.
ABSTRACT Advances in pathogen detection that incorporate artificial intelligence (AI) may capture microbial signals under challenging environmental conditions that traditional methods miss. This systematic review evaluates the application, performance, and methodological characteristics of AI‐enabled imaging for pathogen detection, including its impact
MeiLi Papa, Gillian Kuehnle, Yoo Jung (Erika) Oh, Jiyoon Yi   +3 more
wiley   +1 more source

Guided Lensless Polarization Imaging

CoRR
Polarization imaging captures the polarization state of light, revealing information invisible to the human eye yet valuable in domains such as biomedical diagnostics, autonomous driving, and remote sensing. However, conventional polarization cameras are often expensive, bulky, or both, limiting their practical use.
Noa Kraicer, Erez Yosef, Raja Giryes
openaire   +2 more sources