Results 111 to 120 of about 219,324 (286)

Two-channel snapshot Mueller matrix polarimeter

open access: yes, 2009
International audienceWe describe a new setup for a snapshot Mueller matrix polarimeter (SMMP). It relies on the separation and orthogonal polarization of two light beams by a Wollaston prism located at the setup output. The simultaneous treatment of the
Dubreuil, Matthieu   +2 more
core   +3 more sources

Polarized Light Backscattering From Turbid Media: Why Do Rayleigh Scatterers Preserve Linear Polarization More Than Circular Polarization?

open access: yesLaser &Photonics Reviews, EarlyView.
Turbid media containing small‐sized Rayleigh‐regime scatterers present a ‘special case’ in which linearly polarized light is found to be less depolarized than circularly polarized light. The underlying mechanisms that give rise to this phenomenon are not yet understood.
Michael D. Singh, Alex Vitkin
wiley   +1 more source

Quantifying Influence of Beam Drift on Linear Retardance Measurement in Dual-Rotating Retarder Mueller Matrix Polarimetry

open access: yesPhotonics
Mueller matrix polarimetry is recently attracting more and more attention for its diagnostic potentials. However, for prevalently used division of time Mueller matrix polarimeter based on dual-rotating retarder scheme, beam drift induced by rotating ...
Kaisha Deng   +6 more
doaj   +1 more source

Higher Order Statistsics of Stokes Parameters in a Random Birefringent Medium

open access: yes, 2007
We present a new model for the propagation of polarized light in a random birefringent medium. This model is based on a decomposition of the higher order statistics of the reduced Stokes parameters along the irreducible representations of the rotation ...
Bihan, Nicolas Le, Said, Salem
core   +3 more sources

Comparative Effects of ZnO, MgO, and CaO Nanoparticles in 3D‐Printed Chitosan–Agarose Scaffolds on Antibacterial and Osteogenic Outcomes

open access: yesMacromolecular Bioscience, EarlyView.
3D‐bioprinted chitosan–agarose (CA) scaffolds loaded with calcium oxide (CAC), zinc oxide (CAZ), or magnesium oxide (CAM) nanoparticles (NPs) were developed. The NPs improved antibacterial activity, rheological properties, and bone marrow cell (BMC) proliferation.
Amir Hashemi   +6 more
wiley   +1 more source

Luminescent Electro‐Spun Nanofibers Crosslinked with Boronic Esters Exhibiting Controlled Release of Carbon Dots for Detection of Wound pHs and Enhanced Antimicrobial

open access: yesMacromolecular Bioscience, EarlyView.
Fabrication of well‐defined CND‐embedded e‐spun nanofibrous mats crosslinked with degradable boronic ester crosslinks in response to pHs and hydrogen peroxide found in wounds, and capable of pH‐responsive release of CNDs, for simultaneous detection and treatment of bacteria.
Nishadi Dilkushi Lokuge   +7 more
wiley   +1 more source

κ‐Carrageenan Hydrogel Carrier Enhances Drug Bioavailability and Antibacterial Activity of Curcumin‐Functionalized Zinc Oxide Nanoparticles

open access: yesMacromolecular Materials and Engineering, EarlyView.
The integration of curcumin adsorbed zinc oxide nanoparticles into k‐carrageenan hydrogels has significantly improved the physico‐mechanical and biofunctional properties. ABSTRACT This study investigates the impact of curcumin‐adsorbed ZnO nanoparticles (C‐ZnO NPs) on the physical, mechanical, and antibacterial properties of kappa (κ)‐carrageenan ...
Uroolee Changmai   +8 more
wiley   +1 more source

Robust constrained weighted least squares for in vivo human cardiac diffusion kurtosis imaging

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose Cardiac diffusion tensor imaging (cDTI) can investigate the microstructure of heart tissue. At sufficiently high b‐values, additional information on microstructure can be observed, but the data require a representation such as diffusion kurtosis imaging (DKI).
Sam Coveney   +6 more
wiley   +1 more source

Optimization of Pulsed Saturation Transfer MR Fingerprinting (ST MRF) Acquisition Using the Cramér–Rao Bound and Sequential Quadratic Programming

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a method for optimizing pulsed saturation transfer MR fingerprinting (ST MRF) acquisition. Methods The Cramér–Rao bound (CRB) for variance assessment was employed on Bloch–McConnell‐based simulated signals, followed by a numerical sequential quadratic programming optimization and basin‐hopping avoidance of local minima ...
Nikita Vladimirov   +2 more
wiley   +1 more source

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