Results 91 to 100 of about 113,174 (295)

Polarization holographic recording of vortex diffractive optical elements on azopolymer thin films and 3D analysis via phase-shifting digital holographic microscopy.

Optics Express, 2021
Direct fabrication of complex diffractive optical elements (DOEs) on photosensitive thin films is of critical importance for the development of advanced optical instruments.
V. Cazac, E. Achimova, V. Abashkin, A. Prisacar, C. Loshmanschii, A. Meshalkin, K. Egiazarian   +6 more
semanticscholar   +1 more source

Photonic Nanomaterials for Wearable Health Solutions

Advanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park, Jung Woo Leem, Young L. Kim, Chi Hwan Lee   +3 more
wiley   +1 more source

Field-portable pixel super-resolution colour microscope. [PDF]

, 2013
Based on partially-coherent digital in-line holography, we report a field-portable microscope that can render lensfree colour images over a wide field-of-view of e.g., >20 mm(2).
Akbari, Najva, Feizi, Alborz, Greenbaum, Alon, Luo, Wei, Ozcan, Aydogan   +4 more
core   +2 more sources

Bioxolography Using Diphenyliodonium Chloride and N‐Vinylpyrrolidone Enables Rapid High‐Resolution Volumetric 3D Printing of Spatially Encoded Living Matter

Advanced Materials, EarlyView.
Bioxolography, a novel volumetric 3D‐bioprinting technique, enables rapid and high‐resolution fabrication of >1 cm3 engineered living materials. A newly developed three‐component photoinitiator system significantly enhances the photoreactivity of gelatin methacryloyl‐based bioresins, allowing for precise xolographic bioprinting.
Alexis Wolfel, Castro Johnbosco, Annalise Anspach, Marieke Meteling, Jos Olijve, Niklas Felix König, Jeroen Leijten   +6 more
wiley   +1 more source

Quantitative Phase Imaging Using Deep Learning-Based Holographic Microscope

Frontiers in Physics, 2021
Digital holographic microscopy enables the measurement of the quantitative light field information and the visualization of transparent specimens. It can be implemented for complex amplitude imaging and thus for the investigation of biological samples ...
Jianglei Di, Ji Wu, Kaiqiang Wang, Ju Tang, Ying Li, Jianlin Zhao   +5 more
doaj   +1 more source

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

Dark-field digital holographic microscopy for 3D-tracking of gold nanoparticles [PDF]

Optics Express 19, 27 (2011) 26044, 2011
We present a new technique that combines off-axis Digital Holography and Dark Field Microscopy to track 100nm gold particles diffusing in water. We show that a single hologram is sufficient to localize several particles in a thick sample with a localization accuracy independent of the particle position.
arxiv   +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

(DH) Noise and Signal scaling factors in Digital Holography in week illumination: relationship with Shot Noise [PDF]

, 2012
We have performed off axis heterodyne holography with very weak illumination by recording holograms of the object with and without object illumination in the same acquisition run.
Gross, Michel, Lesaffre, Max, Verrier, Nicolas   +2 more
core   +4 more sources

Deep learning-based cell identification and disease diagnosis using spatio-temporal cellular dynamics in compact digital holographic microscopy.

Biomedical Optics Express, 2020
We demonstrate a successful deep learning strategy for cell identification and disease diagnosis using spatio-temporal cell information recorded by a digital holographic microscopy system.
T. O’Connor, A. Anand, B. Andemariam, B. Javidi   +3 more
semanticscholar   +1 more source