Results 71 to 80 of about 42,393 (288)

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

open access: yesAdvanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt   +2 more
wiley   +1 more source

Optical vortex ladder via Sisyphus pumping of Pseudospin

open access: yesNature Communications
Robust high-order optical vortices are much in demand for applications in optical manipulation, optical communications, quantum entanglement and quantum computing.
Sihong Lei   +5 more
doaj   +1 more source

Perfect Optical Vortex to Produce Controllable Spot Array

open access: yesFrontiers in Physics, 2022
The perfect optical vortex has successfully aroused substantial interest from researchers for its central dark hollow caused by spatial phase singularity in recent years.
Xiaotong Jiang   +8 more
doaj   +1 more source

Off-axis vortex beam propagation through classical optical system in terms of Kummer confluent hypergeometric function

open access: yes, 2020
The analytical solution for the propagation of the laser beam with optical vortex through the system of lenses is presented. The optical vortex is introduced into the laser beam (described as Gaussian beam) by spiral phase plate.
Augustyniak, Ireneusz   +4 more
core   +1 more source

Supercontinuum generation with optical vortices

open access: yesOptics Express, 2010
We employ an optical vortex beam for the generation of femtosecond supercontinuum in a solid state medium. We demonstrate that the continuum generation process is initiated by the filamentation of the vortex, resulting in a spatially divergent continuum. Despite the strong self-focusing and the formation of multiple hot-spots along the vortex ring, the
Dreischuh, Alexander   +4 more
openaire   +3 more sources

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

open access: yesAdvanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore   +7 more
wiley   +1 more source

Spatiotemporal optical vortex reconnections of multi-vortices

open access: yesScientific Reports
Vortex reconnections are ubiquitous events found in diverse media. Here we show that vortex reconnections also occur between spatiotemporal vortices in optical waves.
Jordan Adams, Imad Agha, Andy Chong
doaj   +1 more source

Single vortices observed as they enter NbSe$_2$

open access: yes, 2003
We observe single vortices as they penetrate the edge of a superconductor using a high-sensitivity magneto-optical microscope. The vortices leap across a gap near the edge, a distance that decreases with increasing applied field and sample thickness ...
Bean   +11 more
core   +1 more source

Observation of Vortex Pinning in Bose-Einstein Condensates [PDF]

open access: yes, 2006
We report the observation of vortex pinning in rotating gaseous Bose-Einstein condensates (BEC). The vortices are pinned to columnar pinning sites created by a co-rotating optical lattice superimposed on the rotating BEC.
Daniel E. Sheehy   +4 more
core   +4 more sources

Existence of Optical Vortices [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2014
17 ...
Yang, Yisong, Zhang, Ruifeng
openaire   +2 more sources

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