Results 131 to 140 of about 247,136 (257)

Comparing multi- and single-exposure speckle contrast optical spectroscopy methods as estimators of blood flow in the diffuse regime. [PDF]

J Biomed Opt
Aleman S, Estrada AD, Parthasarathy AB.
europepmc   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Online Chemical Analysis of Flowing <i>n</i>-Hexane in a Pyrolysis Reactor by Optical Spectroscopy and Molecular Beam Mass Spectrometry. [PDF]

J Phys Chem A
Rohan MC, VanDyke CJ, Hanchak MS, Craft EM, Kurian ES, Tucker AD, Lewis WK, DeBlase AF.   +7 more
europepmc   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Non-contact optical spectroscopy for metabolic and vascular characterizations of orthotopic tongue cancer models <i>in vivo</i>. [PDF]

IEEE J Sel Top Quantum Electron
Hasan MZ, Yan J, Sarker S, Saha PS, Zhu C.   +4 more
europepmc   +1 more source

Development of a Three‐Axis Planar Hall Magnetoresistance Sensor Using a Superparamagnetic Nanoparticle‐Based Flux Guide

Advanced Functional Materials, EarlyView.
A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon, Mijin Kim, Keonmok Kim, Byeonghwa Lim, Bibhutibhusan Nayak, Youngdo Jung, Bo‐Yeon Lee, Taehyeong Jeon, Jinwoo Kim, Sunjong Oh, CheolGi Kim   +10 more
wiley   +1 more source

Improving Bandgap Determination by Optical Spectroscopy: Comparative Evaluation of ISARS, UV-vis, and Diffuse Reflectance. [PDF]

ACS Meas Sci Au
Pham H, Neves JC, Yan R, Pankratova V, Cao W, Zhang D.   +5 more
europepmc   +1 more source

Measurements of slow tissue dynamics with short-separation speckle contrast optical spectroscopy. [PDF]

Biomed Opt Express, 2023
Liu B, Shah S, Küreli G, Devor A, Boas DA, Cheng X.   +5 more
europepmc   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

On-skin, micro-objective enabled camera module for speckle contrast optical spectroscopy/tomography. [PDF]

Biomed Opt Express
Quiroga A, Cortese L, Verma M, Dannberg P, Tachtsidis I, Danz N, Durduran T.   +6 more
europepmc   +1 more source