Results 231 to 240 of about 12,698 (302)

Revealing the Resonant Physics of Open Photonic Time Crystals

open access: yesLaser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero   +5 more
wiley   +1 more source

Interface Phonon Transmission Behaviors and Their Resultant Influence on Thermal Transport in Cu/Diamond Composites

open access: yesMaterials Genome Engineering Advances, EarlyView.
Cu/diamond heat spreaders are limited by low thermal boundary conductance. Using DFT + DMM, we identify the phonon‐transport factors governing TBC and show that optical–phonon contributions and branch conversion are essential. High‐k $k$ carbides (B4C, WC) and residual B and Cr improve interfacial heat transfer, enabling robust performance versus ...
Qinghe Zheng   +3 more
wiley   +1 more source

GPUMDkit: A User‐Friendly Toolkit for GPUMD and NEP

open access: yesMaterials Genome Engineering Advances, EarlyView.
GPUMDkit is a comprehensive and user‐friendly toolkit for GPUMD and NEP programs, integrating format conversion, structure sampling, property calculation, and visualization into a unified interface, substantially lowering the barrier to entry for machine‐learning molecular dynamics simulations with GPUMD and NEP.
Zihan Yan   +22 more
wiley   +1 more source

Nonlocal active sound control for composite regions

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
In the active sound control problem, additional sound sources, known as control sources, are implemented at the perimeter of a protected domain. The control sources can generate secondary sound inside the shielded domain, which attenuates incoming noise. This leads to an inverse source problem.
Nan Hu, Sergey Utyuzhnikov
wiley   +1 more source

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