Results 81 to 90 of about 409,083 (217)

A Basic Complete Numerical Toolbox for Picosecond Ultrasonics

open access: yesAcoustics, 2019
A complete numerical complete toolbox is proposed concerning the simulation of photo-induced propagative mechanical wave, and concerning the optical reflectometric measured response of the material, which is initially exposed to a first pump laser beam ...
P. Babilotte
semanticscholar   +1 more source

Stretchable Curvature Sensors for Motion Capture with Bending‐Stretching Coupling Deformation

open access: yesAdvanced Science, EarlyView.
Stretchable curvature sensors based on a wavy symmetric stacked‐layer structure (WSSLS) enable decoupled bending‐stretching detection with high linearity, repeatability, and durability. Integrated into smart gloves, the sensors achieved precise motion capture and human‐robot interaction, with slip‐simulation tests demonstrating a remarkable 93.6 ...
Tairan Wang   +9 more
wiley   +1 more source

Scalable, Microwave‐Enabled Synthesis of Ternary WxTi1‐xO2 and Heterostructured TiO2‐WO3‐x Colloidal Nanocrystals: Carrier Dynamics and Photocatalytic Properties

open access: yesAdvanced Science, EarlyView.
Two microwave‐assisted synthetic methods, specifically a one‐pot and a seeded‐growth approach, are developed within a hydroalcoholic solution for the growth of single‐phase ternary WxTi1‐xO2 and heterostructured TiO2‐WO3‐x colloidal nanocrystals. Both types of nanocrystals show significant photocatalytic activity for 4‐methoxybenzyl alcohol oxidation ...
Riccardo Scarfiello   +13 more
wiley   +1 more source

Light modulation in phoxonic nanocavities [PDF]

open access: yes, 2011
We report on the occurrence of strong nonlinear acousto-optic interactions in phoxonic structures, that support, simultaneously, acoustic and optical localized resonant modes, under the influence of acoustic losses.
Bonello, Bernard   +5 more
core   +1 more source

Recent progress in picosecond ultrasonic process metrology [PDF]

open access: yesAIP Conference Proceedings, 2001
We discuss the use of the picosecond ultrasonics technique for characterizing several challenging processes which are common in sub-0.18 micron processes. Specific processes considered are reactive TaN, RTP-CoSi2, and damascene copper. We describe the transition from one- to two- dimensional acoustical excitations in damascene copper lines, and show ...
openaire   +1 more source

Multi‐Dimensional Acoustic Cascaded Holographic Encryption with Instantaneous Visual Decryption via Particle Manipulation

open access: yesAdvanced Science, EarlyView.
Acoustic holograms act as key tools for information encryption, yet current schemes limit encryption dimensionality/security and require time‐consuming decryption. A compact device integrates multi‐dimensional cascaded acoustic holography with particle manipulation, employs extra secret keys, enables rapid decryption, and is validated via 1D/2D/3D ...
Qin Lin   +8 more
wiley   +1 more source

Demonstration of quantum synchronization based on second-order quantum coherence of entangled photons

open access: yes, 2016
Based on the second-order quantum interference between frequency entangled photons that are generated by parametric down conversion, a quantum strategic algorithm for synchronizing two spatially separated clocks has been recently presented.
Dong, Ruifang   +8 more
core   +1 more source

Optimization of a perfect absorber multilayer structure by genetic algorithms [PDF]

open access: yes, 2018
Background: An increasing interest has been recently grown in the development of nearly perfect absorber materials for solar energy collectors and more in general for all the thermophotovoltaic applications.
Li Voti, Roberto
core   +1 more source

Defect Dynamics and Solution‐Processed Interconnects in Perovskite‐Organic Tandem Solar Cells

open access: yesAdvanced Science, EarlyView.
In this study, we identify the underlying cause of efficiency losses in WBG perovskites, which is ascribed to the presence of mobile defects distributed at surface regions. We further employ effective passivation agent with functional chemical groups to facilitate the healing of the mobile defects, thereby enhancing the VOC to 1.35 V and champion ...
Yingjie Hu   +12 more
wiley   +1 more source

Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials

open access: yesAdvanced Science, EarlyView.
ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu   +3 more
wiley   +1 more source

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