🔬 physics

Ultra-High Sensitivity Terahertz Dual-Parameter Sensing Based on Eccentric-Core Photonic Crystal Fiber

This paper proposes an ultra-high sensitivity terahertz dual-parameter sensor based on an eccentric-core photonic crystal fiber coated with MoS₂ and filled with thermosensitive liquid, which simultaneously achieves high-performance refractive index and temperature detection with minimal cross-sensitivity and a large penetration depth for biochemical applications.

Yanyan Wang, WeiHua Shi, Hui Zhao, Xiling Zheng2026-09-08
🔬 physics

From pore collapse to crystal growth: ultrafast laser-induced stishovite formation in nanoporous silica

This paper demonstrates that ultrafast laser irradiation of nanoporous silica induces rapid pore collapse and preferential nucleation via electromagnetic field enhancement, leading to the sub-nanosecond formation of stishovite—a high-pressure phase that outpaces pressure relaxation and can be controlled by tailoring electromagnetic hotspots.

Aram Yedigaryan, Mohamed Yaseen Noor, Elena Kachan, Gabriel Calderon, Jinwoo Hwang, Enam Chowdhury, Jean-Philippe Colomb (…)2026-09-08
🔬 physics

Information-Based Symbolic Regression of Local Closures for RANS Transition Modeling

This paper presents an information-based symbolic regression framework that derives compact, interpretable local surrogates for key transition parameters, significantly improving the accuracy of RANS transition modeling for various flow cases while highlighting the need for potential recalibration in low-turbulence scenarios.

Javier Capel-Jorquera, José I. Cardesa, M. Chávez-Módena, E. Valero, L. M. González2026-09-08
🔬 physics

Band Alignment Engineering of Non-Toxic Nb 2 O 5 /MnS Transport Layers for High- Performance Sb 2 (S,Se) 3 Thin-Film Solar Cells: A Combined DFT and SCAPS-1D Investigation

This study employs a combined DFT and SCAPS-1D approach to engineer band alignment using non-toxic Nb₂O₅ and MnS transport layers, achieving a record 25.30% power conversion efficiency and demonstrating superior thermal and illumination stability for Cd-free Sb₂(S,Se)₃ thin-film solar cells.

M. T. Islam, Mukaddar Sk2026-09-08
🔬 physics

Scenario dependence of hydrogen–helium similarity: Multi-scenario comparison and applicability boundaries

This study demonstrates that the accuracy of using helium as a hydrogen surrogate is highly scenario-dependent, varying with jet orientation, confinement, and flow conditions due to the competing effects of inertia and buoyancy, thereby necessitating a multi-parameter framework for selecting appropriate conversion criteria.

lei shi, tiancai ma, Mingqian Qiu, Xiuhui Jing, Muyao Peng, Wentao Liu2026-09-08
🔬 physics

Ultrafast magnetization induced by linearly polarized pulses is widespread in nonmagnetic semiconductors

This study employs high-throughput first-principles screening to identify nearly 440 non-magnetic semiconductors that exhibit ultrafast, linearly polarized light-induced magnetization, demonstrating that this phenomenon is widespread and providing systematic chemical trends to guide future experimental verification and applications.

Xiangzhou Zhu, Junfeng Qiao, Nicola Marzari, Matteo Calandra2026-09-08