Yan Feng

Tailoring Capping Layers for Phase‐Change Material Photonics

Jiaxin Zhang, 李振阳 Li Zhenyang, Hao Sun, Jialing Jian et autres

ABSTRACT Spatial‐laser programming of low‐loss Sb 2 Se 3 phase‐change materials (PCMs) offers a flexible route toward pixelated and large‐scale nonvolatile reconfigurability in photonic devices. However, complex laser‐induced dynamics often limit precision control and reproducibility. We systematically investigate how encapsulation architectures, a …

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High-power high-repetition-rate nanosecond pulsed single frequency laser at 780 nm

Xinyu Teng, Huawei Jiang, Xin Zeng, Yuxiang Sun et autres

While high-power 780 nm pulsed lasers are essential for atom interferometry, scaling existing sources is restricted by nonlinear effects and material damage.In this work, we demonstrate a robust 780 nm source based on single-pass frequency doubling in a lithium triborate (LBO) crystal.The …

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An AFU-activated ultrasensitive chemiluminescence probe for hepatocellular carcinoma (HCC) imaging, image-guided surgery, and tissue diagnosis

Zhenyu Wang, Xuhui Shi, Yanyan Qi, Hang Sun et autres

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Research Progress on Fluorene‐Based Covalent Organic Frameworks and Metal‐Organic Frameworks

Xinxin Han, Yan Feng, Zepeng Guo, Jianhua Li et autres

The rapid development of flexible electronic technology is driving profound changes in the material system. In this revolution, organic materials have gained unprecedented development space due to their structural tunability, biocompatibility, and mechanical flexibility. However, their practical applications have long been limited …

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Tracing SO 2 Heterogeneous Oxidation Dual-Pathway via Hydrogen-Bond-Enriched Interfacial Radical Chemiluminescence

Yuxian Zhou, Hongjie Song, Chudong Wei, Xinyi Yang et autres

Elucidating the SO 2 heterogeneous oxidation mechanism at the gas–liquid interface is critical for understanding haze formation. However, the dominant pathways and the oxidant’s relative contributions remain ambiguous. This study developed a methodology that coupled a radical interfacial enrichment strategy with chemiluminescence …

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One-step ultrasonic-assisted persulfate-percarbonate process for sustainable bleaching of yak wool fibers

Qian Hu, Gaoqi Dai, Xuanxiang Wei, L Orlov Yu et autres

Conventional Fe 2+ / H 2 O 2 bleaching process for yak wool fibers poses significant environmental challenges, particularly in water protection, due to its multi-step operations and heavy-metal reliance. This study developed an one-step, low-temperature, metal-free bleaching process utilizing ammonium persulfate …

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SentinelNet: Safeguarding Multi-Agent Collaboration Through Credit-Based Dynamic Threat Detection

Yan Feng, Xudong Pan

Malicious agents pose significant threats to the reliability and decision-making capabilities of Multi-Agent Systems (MAS) powered by Large Language Models (LLMs). Existing defenses often fall short due to reactive designs or centralized architectures which may introduce single points of failure. To address …

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Semiconducting Ge dopants enable concurrent lattice stabilization and enhanced Na + redox activity in P2-type sodium-ion cathodes

Shuolei Deng, Yaowen Cao, Shuangsheng Xiong, Z K Li et autres

This study shows that Ge doping stabilizes the P2-type cathode lattice and promotes reversible Ni redox, thereby increasing capacity and enabling excellent sodium-ion full-cell performance.

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Improving the high-temperature mechanical properties of Mg alloys by introducing fine Al-RE particles via solid-state diffusion reaction among raw material flakes

Yan Feng, Yuqi Liu, Yuhe Tian, Weijun He et autres

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Corrected Moments in Antenna Coordinates (CMAC) Technical Report

Scott Collis, Jonathan Helmus, Zachary Sherman, Robert B. Jackson et autres

This report was prepared as an account of work sponsored by an

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Enhanced second-harmonic generation with four-wave-mixing broadened fundamental laser

Xin Zeng, Lu Han, Xuezong Yang, Huawei Jiang et autres

Single-pass second-harmonic generation (SHG) of a phase-modulated fiber laser is an effective scheme for high-power, continuous-wave, narrow-linewidth visible laser generation. However, this approach encounters difficulties in improving conversion efficiency. In this paper, we demonstrate enhanced single-pass SHG conversion efficiency via four-wave-mixing (FWM) …

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MISTA candidate magnetic field models for IGRF-14 derived from MSS-1, Swarm and observatory data

Hongbo Yao, Pengfei Liu, Qing Yan, Yi Jiang et autres

Abstract The International Geomagnetic Reference Field (IGRF) is a spherical harmonic model representing the large-scale Earth’s main magnetic field and its secular variation (SV). In 2024, the International Association of Geomagnetism and Aeronomy (IAGA) V-MOD Working Group called for candidate models for …

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