IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-12 DOI: 10.1364/optica.610411

Ye Chen,Frank Brinker,Tianyun Long,MATTHIAS SCHOLZ,JIAWEI YAN,Ulrike Boesenberg,SARA CASALBUONI,WINFRIED DECKING,Wolfgang Freund,Jan Gruenert,Marc Guetg,Naresh Kujala,shan liu,Anders Madsen,Christoph Mahnke,Mikako Makita,Theophilos Maltezopoulos,Harald Sinn,Patrik Vagovic,Maurizio Vannoni,Lutz Winkelmann

引用次数: 0

Generating cylindrical vector γ rays via beam–target interactions: toward structured light at high energies 通过束靶相互作用产生圆柱形矢量γ射线：朝向高能结构光

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-09 DOI: 10.1364/optica.612330

Yue Cao, Kun Xue, Si-Man Liu, Zhong-Peng Li, Li-Xiang Hu, Xin-Yu Liu, Zhen-Ke Dou, Feng Wan, Qian Zhao, Tong-Pu Yu, Jian-Xing Li

{"title":"Generating cylindrical vector\u0000 γ\u0000 rays via beam–target interactions: toward structured light at high energies","authors":"Yue Cao, Kun Xue, Si-Man Liu, Zhong-Peng Li, Li-Xiang Hu, Xin-Yu Liu, Zhen-Ke Dou, Feng Wan, Qian Zhao, Tong-Pu Yu, Jian-Xing Li","doi":"10.1364/optica.612330","DOIUrl":"https://doi.org/10.1364/optica.612330","url":null,"abstract":"Structured γ rays, particularly cylindrical vector γ rays, offer promising tools for subnuclear imaging and polarization-sensitive probes in fundamental research and applications, but conventional optical methods face great challenges at such photon energies. Here, we put forward a novel method, to our knowledge, for generating such γ rays through relativistic beam–target interactions. For instance, radially polarized γ rays can be generated by using a dense electron beam striking a multifoil target. We find that the radial polarization is transferred from the generated coherent transition radiation (CTR) fields to γ photons through nonlinear Compton scattering, with the high polarization preserved by phase matching. Three-dimensional spin-resolved simulations demonstrate radial polarization degrees approaching 60%. Furthermore, these γ rays can decay into azimuthally spin-polarized positrons via the nonlinear Breit–Wheeler process, with their spins aligning along the CTR magnetic field. Our work extends the concept of structured light into the γ -ray regime, offering new prospects for broad fields such as nuclear structure probing, fundamental symmetries tests, polarization-sensitive studies in extreme conditions, and laboratory astrophysical observations.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"466 1","pages":"2171"},"PeriodicalIF":10.4,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Programmable heterogeneous lithium niobate photonic circuits via active–passive joint inverse design 基于主被动接头反设计的可编程非均相铌酸锂光子电路

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-09 DOI: 10.1364/optica.614691

Ling-en Zhang, Haozong Zhong, Ning Qu, Hongbo Yu, Yuxuan Yang, Yanxi Chen, Ya Cheng, Lin Li

{"title":"Programmable heterogeneous lithium niobate photonic circuits via active–passive joint inverse design","authors":"Ling-en Zhang, Haozong Zhong, Ning Qu, Hongbo Yu, Yuxuan Yang, Yanxi Chen, Ya Cheng, Lin Li","doi":"10.1364/optica.614691","DOIUrl":"https://doi.org/10.1364/optica.614691","url":null,"abstract":"Realizing densely integrated, programmable photonic circuits on thin-film lithium niobate on insulator (LNOI) is essential for next-generation high-speed optical information processing. However, it remains highly challenging due to LNOI’s limited optical confinement, fabrication constraints, and the poor scalability of conventional design approaches. Here, we experimentally demonstrate an active–passive joint inverse design method on a heterogeneous silicon-LNOI platform to overcome these limitations. By co-optimizing dynamic electro-optic phase variables with the topology of silicon metastructures integrated onto LNOI slab waveguides, this approach enables efficient control of optical energy distribution and spatial modes while ensuring fabrication robustness. We experimentally demonstrate 2×2 and 4×4 phase-programmable spatial routers with routing regions of 15×8µm 2 and 35×14µm 2 , respectively, achieving up to 86% size reduction while maintaining high transmission efficiency. Furthermore, we demonstrate a reconfigurable 4×1 mode synthesizer that supports diverse composite modal states and fast reconfiguration among four guided modes (TE 0 −TE 3 ). The architecture is inherently scalable, enabling the dynamic manipulation and processing of highly complex mode states and extension to larger-scale photonic circuits. Our results establish a general route toward densely integrated, multidimensional photonic networks, and open opportunities for programmable photonic information processing on LNOI platforms.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"22 1","pages":"2163"},"PeriodicalIF":10.4,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Single-Exposure, Sub-Nanometer Resolution Spatially Compressed Imaging Spectroscopy of Laser-Sustained Plasmas 激光持续等离子体的单曝光、亚纳米分辨率空间压缩成像光谱

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-08 DOI: 10.1364/optica.583498

Fan Xia,Jianheng Lu,Yaodan Hu,Weiqi Tang,Zhengyan Li

引用次数: 0

Coherent Quadratic Supercontinuum Generation from UV to Mid-IR in Lithium Niobate Nanophotonics 铌酸锂纳米光子学中紫外到中红外相干二次超连续谱的产生

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-07 DOI: 10.1364/optica.592517

Selina Zhou,Maximilian Shen,Ryoto Sekine,Nicolas Englebert,Thomas Zacharias,Benjamin Gutierrez,Robert Gray,Justin Widjaja,Alireza Marandi

引用次数: 0

Non-volatile photonic emulator based on phase-change coupled waveguide arrays 基于相变耦合波导阵列的非易失性光子模拟器

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-07 DOI: 10.1364/optica.605248

Liang Wang,Wenchan Dong,Hailong Zhou,Zengguang Cheng,Huanan Pu,Jianji Dong,Xinliang Zhang

引用次数: 0

Controllable Brownian diffusion in spatially inhomogeneous speckle fields 空间非均匀散斑场中的可控布朗扩散

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-06 DOI: 10.1364/optica.605407

Kang-Min Lee,Cristian Acevedo,Shubham Dawda,Jose Guzman-Sepulveda,Aristide Dogariu

引用次数: 0

Efficient photon-pair emission from a nanostructured resonator and its theoretical description 纳米结构谐振腔的有效光子对发射及其理论描述

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-05 DOI: 10.1364/optica.605348

Michael Poloczek,Alberto Paniate,Attilio Zilli,Vitaliy Sultanov,Yigong Luan,Jose Tomas Santiago-Cruz,Luca Carletti,Marco Finazzi,Marco Genovese,Ivano Ruo Berchera,Marzia Ferrera,Andrea Toma,Francesco Monticone,Michele Celebrano,Maria Chekhova

引用次数: 0

Gate-Tunable Multi-Junction Competition for Position-Wavelength Fusion Perception 位置-波长融合感知的门可调谐多结竞争

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-05 DOI: 10.1364/optica.612063

Yihong She,Yuelin Zhang,Tangxin Li,Xiao Fu,Yuxuan Pei,Haoran Sun,XIAOYONG JIANG,Yueyue Fang,Yu Jiang,Siyu Long,Chengjing Zhuang,Chonggen Liu,Kunyu Wang,Wei-Da Hu,Jinshui Miao

引用次数: 0

X-ray ptychography: state of the art and future prospects x射线照相术：技术现状及未来展望

IF 10.4 1区物理与天体物理

Optica Pub Date : 2026-10-02 DOI: 10.1364/optica.601562

Manuel Guizar-Sicairos,Virginie Chamard

引用次数: 0

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