Results 61 to 70 of about 6,305 (224)

Femtosecond‐Laser Nanocavitation Regenerates SERS‐Active Plasmonic Nanogaps for Longitudinal Molecular Sensing at Biointerfaces

Advanced Science, EarlyView.
A regenerative molecular sensing platform that co‐localizes surface‐enhanced Raman spectroscopy (SERS) sensing and nanocavitation‐based actuation. Femtosecond‐laser triggered nanocavitation produces thermomechanical forces to locally regenerate SERS‐active nanogaps in protein‐rich biofluids while preserving optical performance.
Aditya Garg, Ze Zong, Meitong Nie, Stacie E. Deaver, Elizabeth M. Van Order, Elieser Mejia, Peter Vikesland, Erin S. Gloag, Wei Zhou   +8 more
wiley   +1 more source

Analysis of GPR Wave Propagation in Complex Underground Structures Using CUDA-Implemented Conformal FDTD Method

International Journal of Antennas and Propagation, 2019
Ground penetrating radar (GPR), as a kind of fast, effective, and nondestructive tool, has been widely applied to nondestructive testing of road quality. The finite-difference time-domain method (FDTD) is the common numerical method studying the GPR wave
Jianwei Lei, Zibin Wang, Hongyuan Fang, Xin Ding, Xiaowang Zhang, Man Yang, Haitao Wang   +6 more
doaj   +1 more source

Comprehensive Numerical Analysis of Finite Difference Time Domain Methods for Improving Optical Waveguide Sensor Accuracy

Sensors, 2016
This paper discusses numerical analysis methods for different geometrical features that have limited interval values for typically used sensor wavelengths.
M. Mosleh E. Abu Samak, A. Ashrif A. Bakar, Muhammad Kashif, Mohd Saiful Dzulkifly Zan   +3 more
doaj   +1 more source

Fully Programmable Slow Light Based on a Spinor Representation of Generalized Coupled‐Resonator‐Induced Transparency

Advanced Science, EarlyView.
A programmable coupled‐resonator‐induced transparency (CRIT) platform is proposed, generalizing classical electromagnetically induced transparency (EIT) via a spinor representation. By utilizing dual‐channel gauge fields and universal unitary operations, this architecture enables dynamically engineered, reconfigurable slow‐light bands on a silicon ...
Seungkyun Park, Beomjoon Chae, Hyungchul Park, Sunkyu Yu, Xianji Piao, Namkyoo Park   +5 more
wiley   +1 more source

Polymer Brushes Govern Defect‐Selective Oxidative Etching of Penta‐Twinned Gold Nanorods

Angewandte Chemie, EarlyView.
Polymer brushes act as active interfacial regulators of oxidative etching, directing it to crystallographic defects. In penta‐twinned gold nanorods, defect–ligand interplay localizes etching to defect regions and induces surface corrugations on the long nanorod sides. This work establishes a framework for programmable nanoengineering of the surfaces of
Tianyi Wu, Irina Koriakina, Feng Li, Zhi‐bo Yang, Yan Zhang, Zitao Chen, Da Wang, Zhihong Nie, Kun Liu, Eugenia Kumacheva   +9 more
wiley   +2 more sources

Adaptive and Highly Efficient Thermoregulation Based on Multi‐Dimensional Janus Film

Advanced Science, EarlyView.
A switchable TiO2/MXene/PDMS Janus membrane enables dual‐mode radiative cooling and solar heating, achieving sub‐ambient cooling of 17.89°C and above‐ambient heating of 13.82°C. Adaptive temperature regulation was demonstrated with a low power integrated autonomous smart curtain system, providing a sustainable and energy‐efficient alternative for ...
Yuqing Shi, Yuting Fu, Xiong Yu, Yuao Guo, Yanjun Liu, Dan Luo, Yuanjing Lin   +6 more
wiley   +1 more source

Two‐Dimensional Layered Materials for Aqueous Zinc‐Ion Batteries: Multifunctional Roles and Mechanistic Insights

Advanced Science, EarlyView.
This overview summarizes versatile 2D layered materials for AZIB anodes, cathodes, separators and electrolytes, illustrating their dendrite/side reaction suppression mechanisms, and analyzes existing hurdles to propose scalable commercial research outlooks.
Shuge Dai, Chenke Yang, Yunrui Jiang, Gaopan Liu, Jianbin Zhou, Ye Wang, Longhui Zeng, Yuen Hong Tsang   +7 more
wiley   +1 more source

Efficient Outdoor Sound Propagation Modeling with the Finite-Difference Time-Domain (FDTD) Method: A Review

International Journal of Aeroacoustics, 2014
The finite-difference time-domain (FDTD) method, solving the inhomogeneous, moving medium sound propagation equations, also referred to as the Linearized Euler(ian) Equations (LEE), has become a mature reference outdoor sound propagation model during the last two decades.
openaire   +2 more sources

Black Hole Quencher‐Enhanced Plasmonic Photothermal Conversion

Advanced Science, EarlyView.
Researchers have developed a universal method to boost plasmonic photothermal conversion by attaching black hole quencher (BHQ) molecules to matched metal nanostructures. This hybrid approach increases efficiency by roughly threefold, reaching up to 69.1% in the near‐infrared‐II window.
Ruiyuan Zhang, Xinru Chen, Lin Shen, Jin Li   +3 more
wiley   +1 more source

Wide-Band Modeling On-Chip Spiral Inductors Using Frequency-Dependent Conformal ADI-FDTD Method

IEEE Access, 2019
To analyze on-chip spiral inductors efficiently, an alternating direction implicit (ADI) finite difference time-domain (FDTD) method is proposed for general dispersive media.
Hongxing Zheng, Yue Wu, Kanglong Zhang, Lu Wang, Mengjun Wang, Erping Li   +5 more
doaj   +1 more source