Results 41 to 50 of about 11,755 (309)
Electroinduced diffraction gratings in cholesteric polymer with phototunable helix pitch [PDF]
, 2022 S.1462-1469For the first time the cholesteric mixture containing nematic polymer with small amount of chiral-photochromic dopant is used for electroinduced diffraction gratings production.
Stumpe, J. +3 more
core +3 more sources
High Efficiency Polarization-Independent Slanted Grating for RGB Bands
IEEE Photonics Journal, 2021 We proposed a slanted grating suitable for RGB bands which is polarization-independent and has a high diffraction efficiency of −1st order under normal incidence.
Ge Jin +5 more
doaj +1 more source
Results in PhysicsA spectropolarimeter based on spatial heterodyne spectroscopy and the channeled polarimetric technique (SSHSCP) is introduced. The SSHSCP uses a polarization grating for channel modulation, meaning that the Stokes parameter is no longer dependent on the ...
Jun Chen +7 more
doaj +1 more source
Highly efficient multicolor multifocus microscopy by optimal design of diffraction binary gratings
Scientific Reports, 2017 Multifocus microscopy (MFM) allows sensitive and fast three-dimensional imaging. It relies on the efficient design of diffraction phase gratings yielding homogeneous intensities in desired diffraction orders. Such performances are however guaranteed only
Bassam Hajj +4 more
doaj +1 more source
Focusing with planar microlenses made of two-dimensionally varying high contrast gratings [PDF]
, 2014 The authors thank the European Union for the financial support through Marie Curie Action FP7-PEOPLE-2010-ITN Project No. 264687 “PROPHET”.We report on the focusing performance of reflective two-dimensionally varying high contrast grating lenses based on
Krauss, T.F. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou +5 more
wiley +1 more source
Diffraction Theory of Spatiotemporally Periodic Gratings [PDF]
, 2019 We present the theory of the diffraction of electromagnetic waves by generalized spacetime periodic diffraction gratings. It is shown that such gratings produce spatial and temporal diffraction orders, yielding a quite unique diffraction pattern, not ...
Taravati, Sajjad +3 more
core +1 more source
Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
wiley +1 more source
AIP Advances, 2019 The recent development of phase-grating moiré neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants.
B. Heacock +8 more
doaj +1 more source
Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers
Advanced Functional Materials, EarlyView.We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar +6 more
wiley +1 more source