Results 81 to 90 of about 2,648,113 (296)

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

Advanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar, Haider Abbas, Muhammad Rabeel, Honggyun Kim, Ghulam Dastgeer, Muhammad Nasim, Furqan Zahoor, Yawar Abbas, Waqas Ahmad, Deok‐kee Kim   +9 more
wiley   +1 more source

Reflectivity of three-dimensional GaAs photonic band-gap crystals of finite thickness [PDF]

, 2020
We study the optical reflectivity of real three-dimensional (3D) photonic band-gap crystals with increasing thickness. The crystals consist of GaAs plates with nanorod arrays that are assembled by an advanced stacking method into high-quality 3D woodpile
Satoshi Iwamoto (1686148), Willem L. Vos (3056646), Takeyoshi Tajiri (6249668), Yasuhiko Arakawa (251674), Iwamoto, Satoshi, Takahashi, Shun, Cornelis A. M. Harteveld (8119229), Shun Takahashi (345084), Arakawa, Yasuhiko, Vos, Willem L., Tajiri, Takeyoshi, Harteveld, Cornelis A.M.   +11 more
core   +2 more sources

Tetracyclic π‐Extended Multi‐Resonant TADF Emitters for Green PSF‐OLEDs With 37.7% EQE and BT.2020‐Compatible Top‐Emitting Devices

Advanced Functional Materials, EarlyView.
Ultra‐narrow green multi‐resonance thermally activated delayed fluorescence emitters have been developed by linear π‐extension strategy using tetracyclic naphtho[2,3‐b]benzofuran unit. The resulting phosphorescence‐sensitized OLEDs achieve a maximum external quantum efficiency of 37.7% in the bottom‐emitting architecture, while the complementary top ...
Eo Jin Jeon, Truong Thi Thuy, Nikita Abitkar, Paramasivam Palanisamy, Jiheon Kim, Myungsun Sim, Athithan Maheshwaran, Jang Hyuk Kwon   +7 more
wiley   +1 more source

T-typed photonic crystal circulator with square lattice Al2O3 rods array and NiZn-ferrite posts

Materials & Design, 2019
This paper proposes and validates a novel T-typed magneto-photonic crystals circulator consisting of Al2O3 ceramic rods array and ferrite posts. Based on the numerical simulations on the band gap of photonic crystals and the function of the circulator ...
Yong Wang, Dengguo Zhang, Biaogang Xu, Zheng Dong, Jihong Pei, Shixiang Xu   +5 more
doaj   +1 more source

Donor‐Engineered Chiral Indium–Salen Complexes for Tunable Circularly Polarized Luminescence

Advanced Functional Materials, EarlyView.
Chiral indium–salen complexes bearing electronically and structurally diverse donor substituents are presented as modular main‐group luminophores exhibiting tunable blue‐to‐green circularly polarized luminescence. Donor engineering systematically controls frontier‐orbital distribution, intraligand charge transfer, and excited‐state relaxation ...
Haein Kim, Minseo Ji, Khuslen Bazarragchaa, Yubin Choi, Gahyeon Baek, Ji Hye Lee, Heekyung Park, Houng Kang, Hyonseok Hwang, Huiyeong Ju, Jun Hui Park, Youngjo Kim, Min Kim, Youngmin You, Myung Hwan Park   +14 more
wiley   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

Advanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee, Hiroya Nishikawa, Tae‐Woong Moon, Dong‐Ha Kim, Fumito Araoka, Suk‐Won Choi   +5 more
wiley   +1 more source

Algorithms and technologies for photonic crystal modelling

, 2009
In this thesis an investigation into the behaviour of light when passing through photonic crystals was carried out using numerical methods. Photonic crystals are expensive and difficult to fabricate so there is a requirement for computer simulations that
Hart, Elizabeth E, Hart, Elizabeth E.
core   +1 more source

Angular photonic band gap

Physical Review A, 2011
We present detailed numerical simulations of a class of material systems that strongly discriminate light based primarily on the angle of incidence, over a broad range of frequencies, and independent of the polarization. Unique properties of these systems emerge from exploring photonic crystals whose constituents have an anisotropic dielectric response.
Hamam, Rafif E., Soljacic, Marin, Celanovic, Ivan L.   +2 more
openaire   +4 more sources

Modal Analysis of Light Propagation, Polarization and Diffraction by Cholesteric Liquid Crystal Layers

Advanced Functional Materials, EarlyView.
The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu, Pouya Nosratkhah, Le Zhou, Shengzhu Yi, Giorgio Manzoni, Kristiaan Neyts   +5 more
wiley   +1 more source

Photonic crystal waveguides in chalcogenide glasses [PDF]

, 2011
The growing speed and bandwidth requirements of telecommunication systems demand all-optical on-chip solutions. Microphotonic devices can deliver low power nonlinear signal processing solutions. This thesis looks at the slow light photonic crystals in
Spurny, Marcel
core   +2 more sources