On the modeling and mitigation of interference fringes in polarimetric instrumentation

This paper presents an approximate yet agile modeling framework for analyzing and mitigating spectral and spatial interference fringes in polarimetric instruments, specifically focusing on isotropic materials and uniaxial crystals under the assumption of small birefringence, while validating its accuracy against rigorous methods like Berreman calculus through extensive design examples.

Roberto Casini, David M. HarringtonWed, 11 Ma🔭 astro-ph

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

This paper presents a novel photoresist utilizing sensitized triplet-triplet annihilation upconversion combined with in-situ photochemical deoxygenation and Ni2+ photoreduction to enable the direct laser writing of ferromagnetic nickel microstructures under ambient conditions.

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

Sensing Low-Frequency Field with Rydberg Atoms via Quantum Weak Measurement

This paper demonstrates a quantum weak measurement scheme using Rydberg atom-based electromagnetically induced transparency that leverages probe laser polarization changes to suppress technical noise and achieve a sensitivity of 33 μcm-1 Hz-1/2\mu\text{V}~\text{cm}^\text{-1}~\text{Hz}^\text{-1/2} for low-frequency electric field sensing.

Ding Wang, Shenchao Jin, Xiayang Fan, Hongjing Li, Jiatian Liu, Jingzheng Huang, Guihua Zeng, Yuan SunWed, 11 Ma⚛️ quant-ph

Probing mesoscopic nonlocal screening in van der Waals heterostructures with polaritons

This study reveals a mesoscopic nonlocal screening regime extending up to ~140 nm at buried interfaces in van der Waals heterostructures, demonstrating that phonon-polariton wavelength shifts provide a transferable metric for charge transfer that scales linearly with work-function differences and is governed by a lattice-mismatch energy threshold.

Xuezhi Ma, Zhipeng Li, Ruihuan Duan, Zeyu Deng, Hao Hu, Mengting Jiang, Yueqian Zhang, Xiaoyuan He, Qiushi Liu, Qiyao Liu, Yuan Ma, Fengxia Wei, Jiayu Shi, Chunqi Zheng, Guangwei Hu, Ping Koy Lam, Chengwei Qiu, Yu Luo, Zheng Liu, Qian WangWed, 11 Ma⚛️ quant-ph

Quantum-preserving telecom conversion of atomic biphotons

This paper experimentally demonstrates the efficient frequency conversion of atomic biphotons to the telecom band using a diamond-type atomic ensemble, successfully preserving their temporal waveforms, nonclassical antibunching, and strong quantum correlations to enable practical interfaces for distributed quantum communication.

Ling-Chun Chen, Chang-Wei Lin, Jiun-Shiuan Shiu, Wei-Lin Chen, Yi-Che Wang, Yong-Fan ChenWed, 11 Ma⚛️ quant-ph

Quantum Sensing of Birefringence Beyond the Classical Limit with a Hyper-Entangled SU(1,1) Interferometer

This paper proposes and theoretically analyzes a hyper-entangled SU(1,1) interferometer scheme that utilizes crossed-polarization nonlinear media to detect minute birefringence with a sensitivity enhancement of 3–15 dB beyond the classical shot-noise limit, even under realistic conditions of gain and internal loss.

Samata Gokhale, Netanel P. Yaish, Michal Natan, Saar Levin, Yogesh Dandekar, Avi Pe'erWed, 11 Ma⚛️ quant-ph

Precise and Robust Domain Engineering Based on Faraday Cage Effect for Thin-film Lithium Niobate Photonics

This paper presents a precise and robust domain engineering technique for thin-film lithium niobate photonics that utilizes nanoscale Faraday cages to define polarity distributions via geometry, enabling the fabrication of a spatially selectively poled waveguide with a record-high normalized second-harmonic generation efficiency of 6242% W⁻¹cm⁻².

Yanqun Wang, Furong Zhong, Lin Liu, Yuntao Zhu, Jinyi Wang, Zhongjin Lin, Xinlun CaiTue, 10 Ma🔬 physics.optics

All-optical reconfiguration of far-field singularities in a photonic-crystal laser

This paper demonstrates an all-optical method to dynamically reconfigure the number and position of far-field polarization singularities in a room-temperature photonic-crystal laser by shaping the pump geometry to create a mesoscopic potential landscape that localizes Bloch modes, while preserving the intrinsic momentum-space singularity.

Abhishek Padhy, Zhiyi Yuan, Mohammed Hamdad, Panagiotis Nianios, Romane Houvenaghel, Aziz Benamrouche, Nicolas Roy, Thanh Phong Vo, Christian Seassal, Xavier Letartre, Lotfi Berguiga, Michaël Lobet, Ségolène Callard, Hai Son NguyenTue, 10 Ma🔬 physics.optics

Three-Dimensional Volumetric Reconstruction of Native Chilean Pollen via Lens-Free Digital In-line Holographic Microscopy

This study demonstrates a robust, label-free methodology using lens-free digital in-line holographic microscopy to achieve high-resolution 3D volumetric reconstruction and precise morphological characterization of native Chilean pollen grains, offering a scalable solution for automated melissopalynology and biodiversity assessment.

J. Staforelli-Vivanco, V. Salamanca-Levi, R. Jofré-Cerda, M. Rondanelli-Reyes, I. LamasTue, 10 Ma🔬 physics.optics

Demonstration of an interferometric technique for measuring vacuum magnetic birefringence with an optical cavity

This paper introduces and validates a novel interferometric technique for measuring vacuum magnetic birefringence by detecting frequency shifts in an optical cavity, presenting prototype results from a 19 m test setup and projecting the sensitivity for a future full-scale experiment using a 245 m cavity and superconducting magnets for the ALPS II project.

Aaron D. Spector, Todd Kozlowski, Laura RobertsTue, 10 Ma🔬 physics.optics

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

This paper theoretically predicts the existence of canalized hyperbolic magnetoexciton polaritons in van der Waals semiconductors like WTe2, MoS2, and phosphorene, which, driven by the Shubnikov-de Haas effect at low temperatures, exhibit ultralow group velocities, super-long lifetimes, and diverse exotic optical topologies.

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

Efficient first-principles inverse design of nanolasers

This paper presents a computationally efficient first-principles inverse design framework for nanolasers that leverages high-QQ cavity approximations to simplify nonlinear Maxwell-Bloch equations into a single linear solve, enabling the topology optimization of both 2D and 3D laser geometries while accounting for critical physical effects like spatial hole burning and gain diffusion.

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

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

This paper presents the first experimental demonstration of a directional dark-field setup for nanoscale full-field transmission X-ray microscopy, enabling the orientation mapping of anisotropic nanostructures below the spatial resolution limit and facilitating quantitative structural characterization in fields ranging from biomineralization to advanced materials.

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

Differentiable Microscopy Designs an All Optical Phase Retrieval Microscope

This paper introduces "differentiable microscopy" (μ\partial\mu), a data-driven, top-down design framework that automatically optimizes optical systems for phase retrieval, demonstrating superior performance over existing methods and experimentally validating its effectiveness on biological samples.

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