Results 91 to 100 of about 526,651 (246)

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

Advanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri, Andrea Smeriglio, Svetlana Siprova, Olga Favale, Francesca Leone, Roberto Termine, Debora Policastro, Alessandra Crispini, Attilio Golemme, Nicolas Godbert, Iolinda Aiello, Antonio De Luca   +11 more
wiley   +1 more source

Visual outcomes after progressive apodized diffractive intraocular lens implantation

, 2018
Purpose: To assess photopic and mesopic vision in patients implanted with the Bi-Flex® M 677 MY bifocal intraocular lens (IOL). Methods: In this prospective clinical study, 25 patients with cataract in both eyes were subjected to cataract surgery and ...
Sanz Fernández, Juan Carlos, Carballo Álvarez, Jesús, Vázquez Molini, José María, Talavero-González, Paula, Ventura-Abreu, Néstor, Martínez De La Casa Fernández-Borrella, José María, García-Bella, Javier, Morales-Fernández, Laura   +7 more
core   +1 more source

Laser‐Induced Local De‐Doping in Organic Semiconductors

Advanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer, Aleksandr Perevedentsev, Daniel Ryklin, Rasmus R. Schröder, Gerardo Hernandez‐Sosa, Uli Lemmer   +5 more
wiley   +1 more source

Hybrid Refractive-Diffractive Lens with Reduced Chromatic and Geometric Aberrations and Learned Image Reconstruction. [PDF]

Sensors (Basel), 2022
Evdokimova VV, Podlipnov VV, Ivliev NA, Petrov MV, Ganchevskaya SV, Fursov VA, Yuzifovich YY, Stepanenko SO, Kazanskiy NL, Nikonorov AV, Skidanov RV.   +10 more
europepmc   +1 more source

A new, sensitive diffractive optic angle meter

, 2002
A sensitive diffractive optic angle meter scheme, based on coherent imaging of two laterally shifted phase gratings onto a third, their periods matched, is presented and experimentally investigated.
Kazemi Moud, Kamyar, Hård, Sverker,, Kamyar Kazemi Moud, Magnusson, Anders, Kazemi Moud, Kamyar,, Anders Magnusson, Magnusson, Anders,, H\ue5rd, Sverker, Sverker Hård   +8 more
core   +1 more source

Dielectric Permittivity Tensor of Muscovite for Next Generation All Van Der Waals Broadband Photonic Components

Advanced Optical Materials, EarlyView.
Low‐index and low‐loss vdW muscovite represents an emerging robust dielectric platform for the creation of next‐generation all‐vdW nanophotonic architectures. Its utilization as a low‐index building‐block in all‐vdW multilayers enables extreme optical contrast when paired with MoS2, paving the way to the realization of few‐layer ultrathin DBS ...
Meri H. Hayrapetyan, Maksim L. Sargsyan, Davit A. Karakhanyan, Ani P. Khachatryan, Maria A. Levonyan, Dmitrii Litvinov, Maciej Koperski, Artsruni V. Margaryan, Makars Šiškins, Konstantin S. Novoselov, Davit A. Ghazaryan   +10 more
wiley   +1 more source

Theoretical principle and design of high-imaging-quality refractive-diffractive optical elements by multifocal-simultaneous aberration-correction method

Results in Physics
Multifocal refractive-diffractive optical elements, which produce arbitrary light distribution, are widely used in lightweight and compact optical systems.
Bo Dong, Ying Yang, Changxi Xue
doaj   +1 more source

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

Advanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco, Daniele Ceneda, Matteo Barelli, Matteo Gardella, Rajesh Chennuboina, Maria C. Giordano, Marco Centini, Francesco Buatier de Mongeot   +7 more
wiley   +1 more source

DIFFRACTIVE AND NON-DIFFRACTIVE BEAMS AND PULSES; A COMPARATIVE STUDY [PDF]

, 2016
"Analytical methods are described which allow us to perform a comparative study of diffractive and non-diffractive beams and pulses. Our description first reviews basic properties of the Fresnel diffraction integral applied for calculating the ...
Etna Yáñez
core  

Turning Light Into Matter: Programmable Microstructures Via Dose Control in Two‐Photon Polymerization

Advanced Optical Materials, EarlyView.
This work augments two‐photon polymerization with point‐wise dose control, enabling structures with heterogeneous material properties such as refractive index. An open source toolbox and superior calibration methodology for the refractive index pave the way for bio‐mimicking or numerically optimized structure designs, and enhance the synergy between 3D
Michał Ziemczonok, Koen Vanmol
wiley   +1 more source