Vortex beams with tunable "all-with-visible-light" dye-doped liquid crystal q-plates for broadband application

该研究通过理论分析与实验验证,展示了利用商业可变螺旋板结合光取向技术制备的染料掺杂液晶q波片,能够在可见光全波段内实现无需复杂旋转系统或空间光调制器的宽带可调谐涡旋光束生成,并证实了二向色性效应不影响其全光谱功能与消色差性能。

Adrián Moya, Adriana R. Sánchez-Montes, Sergi Gallego, Eva M. Calzado, Andrés Márquez, Inmaculada Pascual, Augusto BeléndezWed, 11 Ma🔬 physics.optics

Resolving Transient Electron-Phonon Coupling with Time-Resolved Spontaneous Raman Spectroscopy

该研究开发了一种基于时间相关单光子计数的时间分辨自发拉曼光谱技术,通过利用调制连续波探针实现亚波数光谱分辨率和数百皮秒时间分辨率,成功在轻掺硼硅中解析了瞬态电子 - 声子耦合参数及其与载流子复合的直接关联。

Guy Reuveni, Maya Levy Greenberg, Matan Menahem, Olle Hellman, Omer YaffeWed, 11 Ma🔬 cond-mat.mtrl-sci

Experimental Characterization of Biological Tissue Dielectric Properties through THz Time-Domain Spectroscopy

该研究利用太赫兹时域光谱技术,在 0.1 至 11 THz 频段内对作为人体组织替代品的猪肉皮肤进行了全面的介电特性实验表征,提取了折射率、吸收系数及复介电常数等关键参数,为太赫兹波段体内纳米传感器网络的信道建模提供了重要的扩展频率数据集。

Elisabetta Marini, Silvia Mura, Marco Hernandez, Matti Hamalainen, Maurizio MagariniWed, 11 Ma🔬 physics.optics

Layered Dielectric Characterization of Human Skin in the Sub-Terahertz and Terahertz Frequency Ranges

本文建立了一个结合多德拜弛豫理论与有效介质公式的综合介电模型,通过整合细胞参数实现了对人体皮肤在亚太赫兹及太赫兹频段频率相关介电常数的准确预测,为下一代非侵入式诊断与成像技术的设计优化奠定了物理基础。

Silvia Mura, Elisabetta Marini, Maurizio Magarini, Matti Hamalainen, Marco HernandezWed, 11 Ma🔬 physics.optics

Direct Laser Writing of Ferromagnetic Nickel Utilizing the Principle of Sensitized Triplet-Triplet Annihilation Upconversion

该研究利用敏化三重态 - 三重态湮灭上转换原理,结合原位光化学脱氧与镍离子光还原过程,在环境条件下成功实现了铁磁性镍微结构的直写制造,为紧凑型三维架构中的传感与数据存储提供了新途径。

Kristin E. J. Kühl (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Katharina Rediger (Department of Chemistry, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Nikhita Khera (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Ephraim Spindler (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Gereon Niedner-Schatteburg (Department of Chemistry, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Elke Neu (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Mathias Weiler (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Georg von Freymann (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany, Fraunhofer Institute for Industrial Mathematics ITWM, Kaiserslautern, Germany)Wed, 11 Ma🔬 cond-mat.mtrl-sci

Differentiable Microscopy Designs an All Optical Phase Retrieval Microscope

该论文提出了名为“可微显微镜”(μ\partial\mu)的自上而下设计框架,通过数据驱动方法成功优化了全光学相位检索系统,并在多个数据集及实验验证中证明了其优于现有方法的性能。

Kithmini Herath, Hasindu Kariyawasam, Ramith Hettiarachchi, Udith Haputhanthri, Dineth Jayakody, Raja N. Ahmad, Azeem Ahmad, Balpreet S. Ahluwalia, Chamira U. S. Edussooriya, Dushan N. WadduwageTue, 10 Ma🔬 physics.optics

Directional Dark Field for Nanoscale Full-Field Transmission X-Ray Microscopy

该研究首次提出了一种适用于纳米级全视场透射 X 射线显微镜的定向暗场成像方法,通过利用现有设备的光学配置实现了对亚分辨率各向异性纳米结构(如牙釉质中的羟基磷灰石纳米晶体)的取向映射与定量表征。

Sami Wirtensohn, Silja Flenner, Dominik John, Peng Qi, Christian David, Manfred May, Patrick Huber, Dirk Herzog, Stefan Tangl, Carina Kampleitner, Kritika Singh, Ingomar Kelbassa, Katrin Bekes, Julia Herzen, Imke GrevingTue, 10 Ma🔬 physics.optics

Efficient first-principles inverse design of nanolasers

该论文提出了一种基于非线性麦克斯韦 - 布洛赫方程和稳态从头算激光理论(SALT)的一阶逆设计方法,通过利用高 Q 值腔体的微扰简化将非线性模型转化为单一线性求解,并结合拓扑优化成功实现了考虑空间烧孔、阈值效应及增益扩散等关键因素的高效纳米激光器设计。

Beñat Martinez de Aguirre Jokisch, Alexander Cerjan, Rasmus Ellebæk Christiansen, Jesper Mørk, Ole Sigmund, Steven G. JohnsonTue, 10 Ma🔬 physics.optics

From Wavefunctional Entanglement to Entangled Wavefunctional Degrees of Freedom

该论文通过揭示光场模式间的纠缠如何被提炼为光子物理可观测量(即波函数自由度)之间的真实纠缠,为理解光子与特征场模式纠缠的等价性这一关键问题提供了新的物理见解,并强调了测量语境在区分量子子系统选择与观测轴决策中的重要性,从而为利用不可分场模式中的纠缠光子设计新型量子信息协议奠定了基础。

Aniruddha BhattacharyaTue, 10 Ma⚛️ quant-ph

Canalized hyperbolic magnetoexciton polaritons enabled by the Shubnikov-de Haas effect in van der Waals semiconductors

该论文理论预测了在低温下,基于舒伯特尼科夫 - 德哈斯效应,钨碲二、二硫化钼和磷烯等范德华半导体中可产生具有超低声速和超长寿命的 canalized 双曲磁激元极化激元,其光学拓扑由朗道能级间跃迁和非局域介电屏蔽效应调控,呈现出多种奇异等频面轮廓。

Guangyi Jia, Qizhe Cai, Chunqi Zheng, Xiaoying Zhou, Cheng-Wei QiuTue, 10 Ma🔬 physics.optics

A Concept of Two-Point Propagation Field of a Single Photon: A Way to Picometer X-ray Displacement Sensing and Nanometer Resolution 3D X-ray Micro-Tomography

该论文提出了“双点传播场”(TPPF)这一新概念,通过解析单光子探测概率对微扰的导数,揭示了其具有皮米级位移传感精度和纳米级三维层析成像分辨率的潜力,为确定性、非迭代的高分辨率 X 射线计量与成像提供了新的物理基础。

Li Hua YuTue, 10 Ma⚛️ quant-ph