Optics letters最新文献

Tailoring monolayer moiré-flatband superlattices through long-range lattice-site perturbations. 通过长程格位微扰裁剪单层莫尔梅兹-平带超晶格。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.608427

Wenjing Li, Yuge Qiu, Yinying Peng, Xiangqi Huang, Fuhao Ji, Liwei Zhang, Mingfang Yi, Peilong Hong

{"title":"Tailoring monolayer moiré-flatband superlattices through long-range lattice-site perturbations.","authors":"Wenjing Li, Yuge Qiu, Yinying Peng, Xiangqi Huang, Fuhao Ji, Liwei Zhang, Mingfang Yi, Peilong Hong","doi":"10.1364/OL.608427","DOIUrl":"https://doi.org/10.1364/OL.608427","url":null,"abstract":"We propose a direct approach for tailoring monolayer moiré superlattices, which is based on artificially designed long-range lattice-site perturbations. We show that this approach produces two distinct extreme sublattices within a supercell, leading to the emergence of staggered band structures associated with flatband formation. In the full-wave simulation with a square lattice, we clearly find a flatband emerging within the predicted spectral range, which has a mode profile localized at the predefined region. Besides, such a flatband resonance is found to exist persistently in a finite-size single-cell slab, while the supercell size is inherently scalable. Particularly, by increasing the supercell size from 7a to 9a, the quality factor of the moiré resonance rises dramatically from ∼0.67×104 to ∼3.1×104. Furthermore, as the far-field radiation profile is practically important, we introduce a new degree of freedom, i.e., the topological alignments of anisotropic scatterers, and demonstrate its effectiveness in shaping the far-field patterns. This work thus offers an attractive route toward high-performance moiré resonators, which is relevant to applications such as the development of micro lasers and nonlinear optical devices.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"51 19","pages":"5301-5304"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149112914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Phase-aligned wavefront record plane algorithm for single-exposure holographic two-photon lithography. 单曝光全息双光子光刻的相位对准波前记录平面算法。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.613912

Zhiyuan Shi, Xin Wang, Chenyu Dong, Yan-Qing Lu, Weihua Zhang

引用次数: 0

Nonlinearity compensation in laser frequency sweep with optical feedback. 光反馈激光扫频非线性补偿。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.612571

Shiwei Deng, Qinghao Hu, Yubo Zhao, Fangfang Du, Zhihui Liu, Jing Li, Qiulin Tan, Rui Feng, Xijing Zhu

引用次数: 0

Scalar-aperture control of spin angular momentum in vector vortex beams. 矢量涡旋光束自旋角动量的标量孔径控制。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.612940

M V Bretsko, S I Yakubov, S I Khalilov, Ya E Akimova

引用次数: 0

Absorbing-molecule-induced optical clearing enhances Cerenkov luminescence imaging of radiopharmaceutical distribution. 吸收分子诱导的光学清除增强了放射性药物分布的切伦科夫发光成像。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.612420

Haichao Zhuang, Changran Geng, Fei Xie, Gensheng Qian, Yuan Ren, Jinkai Yang, Xiaobin Tang

{"title":"Absorbing-molecule-induced optical clearing enhances Cerenkov luminescence imaging of radiopharmaceutical distribution.","authors":"Haichao Zhuang, Changran Geng, Fei Xie, Gensheng Qian, Yuan Ren, Jinkai Yang, Xiaobin Tang","doi":"10.1364/OL.612420","DOIUrl":"https://doi.org/10.1364/OL.612420","url":null,"abstract":"Cerenkov luminescence imaging (CLI) enables noninvasive and real-time tracking of the in vivo distribution of radiopharmaceuticals by detecting Cerenkov optical signals generated during radionuclide decay. However, biological tissues exhibit strong scattering and absorption in the visible spectrum, which not only markedly attenuate Cerenkov signals but also cause discrepancies between the detected optical signals and the actual in vivo distribution of radiopharmaceuticals, thereby limiting the imaging accuracy of CLI. Here, we demonstrate that skin optical clearing alleviates this limitation and enhances the spatial fidelity of CLI images. An absorbing-molecule-based optical clearing treatment markedly decreased the tissue reduced scattering coefficient, increasing visible light transmittance through mouse skin by more than 50-fold (from 0.47% to 24.55%) while reducing skin reflectance by approximately 68.8%. Using 68Ga as the radiotracer, the agreement between CLI and positron emission tomography (PET) was substantially improved, with the Pearson correlation coefficient increasing from 0.55 to 0.78 and the Spearman correlation coefficient from 0.63 to 0.82. After a 15-day recovery period following optical clearing treatment, the treated mouse showed hair regrowth and signs of skin recovery. These results support the potential of optical clearing as a simple and effective strategy for improving the spatial correspondence of CLI with radiopharmaceutical distribution.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"51 19","pages":"5478-5481"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149112184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Acousto-optic modulation using high-order optical modes in hybrid thin-film lithium niobate straight waveguides. 混合铌酸锂薄膜直波导中高阶光模的声光调制。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.608786

Huilong Liu, Xiang Shi, Yu'e Guan, Haiwei La, Huipeng Chen, Feier Fang, Hongjun Shen, Lei Wan

引用次数: 0

Sub-shot-noise infrared gas concentration sensing via coincidence detection of quantum-correlated photons. 基于量子相关光子重合检测的亚散噪声红外气体浓度传感。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.610580

Xin He, Xiao-Min Hu, Ke Wang, Jia-Le Miao, Zhu-Cheng Zhang, Yong-Ze Shi, Yan-Rui Xu, Hao-Bing Zhao, Yun-Sheng Dong, Wen-Qing Liu, Bi-Heng Liu, You-Wen Sun

引用次数: 0

Wavelength-tunable photonic crystal nanolaser arrays enabled by twist-angle engineering. 扭角工程实现波长可调光子晶体纳米激光阵列。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.608188

Hongyu Li, Qingyun Liao, Yilan Wang, Feng Tian, Wendi Huang, Shengqun Guo, Bowen Han, Yuhua Liao, Taojie Zhou

引用次数: 0

Dual-polarization broadband directional thermal emitter via coupled Fabry-Perot and Berreman modes. 双偏振宽带定向热发射器通过耦合法布里-珀罗和伯里曼模式。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.612834

Jiayu Liu, Chengyou Lin

{"title":"Dual-polarization broadband directional thermal emitter via coupled Fabry-Perot and Berreman modes.","authors":"Jiayu Liu, Chengyou Lin","doi":"10.1364/OL.612834","DOIUrl":"https://doi.org/10.1364/OL.612834","url":null,"abstract":"Controlling the directivity of broadband thermal radiation has been a fundamental challenge. Broadband directional thermal emission is of great importance for applications such as infrared stealth, radiative cooling, and thermal camouflage. However, most existing studies focus on the directional control of thermal radiation for a single polarization state, and broadband directional emission under dual-polarization conditions remains largely unexplored. In this work, we propose a dual-polarization broadband directional emitter that couples the Berreman mode of epsilon-near-zero (ENZ) materials with the Fabry-Perot (FP) resonance. The structural parameters are optimized by a genetic algorithm. The emitter consists of an MgF2/SiO/MgF2/Ta2O5 multilayer stack on an Al substrate, achieving large-angle directional emission within the 8-14 μm atmospheric window for both s-polarization and p-polarization. The average unpolarized emissivity in the atmospheric window reaches 0.69 at an incidence angle of 70 °, while it is as low as 0.23 at 0 °, yielding a contrast ratio close to 3:1. Electric field distribution and loss analyses reveal the underlying physical mechanisms: p-polarized emission is dominated by the Berreman mode in the ENZ films, whereas s-polarized emission is governed by the FP cavity resonance formed by the MgF2 dielectric layer and the ENZ films. By effectively coupling the FP resonance and the Berreman mode, this work provides a new, to the best of our knowledge, strategy for achieving broadband directional thermal emission control under dual polarization.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"51 19","pages":"5353-5356"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149113105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-responsivity germanium photodetector enabled by dual corner reflectors. 高响应度锗光电探测器启用双角反射。

IF 3.3 2区物理与天体物理

Optics letters Pub Date : 2026-10-01 DOI: 10.1364/OL.611498

Bingyan Zhang, Yuxiang Yin, Yihang Li, Yi Wang, Yeyu Tong, Ke Xu

引用次数: 0