Results 111 to 120 of about 438,669 (284)

Optical Polarization Sensor Based on a Metalens. [PDF]

Sensors (Basel), 2022
Kotlyar V, Nalimov A, Kovalev A, Stafeev S.   +3 more
europepmc   +1 more source

Coordinated Multi‐Component Gradient Engineering of Catalyst Layers for Advanced Polymer Electrolyte Fuel Cells

Advanced Functional Materials, EarlyView.
This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou, Matt P. Tudball, Yiming Guo, Bia Brandt, Adam Zucconi, Wenjia Du, Junfu Bu, Daniel H. C. Wan, Jianuo Chen, Emanuele Magliocca, Feng Ryan Wang, Alexander J.E. Rettie, Patrick S. Grant, Paul R. Shearing, Rhodri Jervis, Thomas S. Miller   +15 more
wiley   +1 more source

Multifunctional Meta-Devices for Full-Polarization Rotation and Focusing in the Near-Infrared

Micromachines
The creation of multi-channel focused beams with arbitrary polarization states and their corresponding optical torques finds effective applications in the field of optical manipulation at the micro-nanoscale.
Hengyi Wan, Kai Ou, Hui Yang, Zeyong Wei
doaj   +1 more source

Optical polarization perturbed by shear strains of ultrasonic bulk waves in anisotropic semiconductors: Multiphysics modeling and optoacoustic validation. [PDF]

Photoacoustics, 2023
He Y, Sohn H, Matsuda O, Su Z.
europepmc   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Warped disks during type II outbursts in Be/X-ray binaries: evidence from optical polarimetry

, 2018
Current models that explain giant (type II) X-ray outbursts in Be/X-ray binaries (BeXB), are based on the idea of highly distorted disks. They are believed to occur when a misaligned and warped disk becomes eccentric, allowing the neutron star to capture
Blinov, D., Reig, P.
core   +1 more source

Optical Polarization Division Multiplexing Transmission System Based on Simplified Twin-SSB Modulation. [PDF]

Sensors (Basel), 2022
Zhou Y, Ming J, Wang L, Wu D, Zhao L, Xiao J.   +5 more
europepmc   +1 more source

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

Advanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio, Martina Mugnano, Valentina Marchesano, Alejandro Calabuig, Zhe Wang, Gennaro Giordano, Francesca Borrelli, Simonetta Grilli, Pietro Ferraro   +8 more
wiley   +1 more source

Multiband optical polarimetry of BL Lac objects with the Nordic Optical Telescope

, 2001
Optical polarization of seven selected BL Lac objects in UBVRI bands was studied with the Nordic Optical Telescope from December 10-14, 1999. Two of them, 3C 66A and PKS 0735+178, were monitored for 4 nights for a total integration time of 4.75 and 5.5 ...
A. Sillanpää, A. Treves, Allen, Björnsson, Brindle, Cawthorne, Corbett, Corbett, Covino, E. Palazzi, E. Pian, E. Poretti, F. Scaltriti, Fiorucci, Fiorucci, Gabuzda, Gabuzda, Ghisellini, Ghisellini, Gruzinov, Gruzinov, Impey, Impey, Jannuzi, Jones, Katz, Kidger, Kikuchi, L. Takalo, L. Tommasi, Mead, Moore, Padovani, Piirola, Puschell, Puschell, Saikia, Scarpa, Schmidt, Sillanpää, Sillanpää, Sillanpää, Sillanpää, Sitko, Smith, Smith, Tagliaferri, Takalo, Takalo, Takalo, Takalo, Takalo, Tommasi, Treves, Ulrich, V. Piirola, Valtaoja, Valtaoja, Visvanathan, Wandel, Wijers, Wills, Wurtz   +62 more
core   +2 more sources

Improving the Detection Accuracy of Subsurface Damage in Optical Materials by Exploiting the Fluorescence Polarization Properties of Quantum Dots

Nanomaterials
Optical materials are widely used in large optical systems such as lithography machines and astronomical telescopes. However, optical materials inevitably produce subsurface damage (SSD) during lapping and polishing processes, degrading the laser damage ...
Yana Cui, Xuelian Liu, Bo Xiao, Yajie Wu, Chunyang Wang   +4 more
doaj   +1 more source