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Predicting the soliton trapping in birefringence optical fibers via spectral neural operator enhanced by CNLSE-Layer. 利用CNLSE-Layer增强的光谱神经算子预测双折射光纤中的孤子捕获。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.572368
Qi Li, Kequan Shi, Bin Luo, Shui Yu, Hongna Zhu, Bangji Wang
{"title":"Predicting the soliton trapping in birefringence optical fibers via spectral neural operator enhanced by CNLSE-Layer.","authors":"Qi Li, Kequan Shi, Bin Luo, Shui Yu, Hongna Zhu, Bangji Wang","doi":"10.1364/OL.572368","DOIUrl":"https://doi.org/10.1364/OL.572368","url":null,"abstract":"<p><p>Soliton trapping is a crucial phenomenon among vector optical solitons in a birefringent fiber. To predict the generation of soliton trapping, we embed the coupled nonlinear Schrödinger equations (CNLSE) as one layer into the neural network. Here, our model employs the CNLSE-Layer to model the cross-phase modulation operator, with the spectral neural operator for modelling the group velocity dispersion operator. The proposed method has the potential to break the bottleneck of the high computational time for physics-informed deep learning methods by adding the physical information in the loss function. This work presents a novel, to the best of our knowledge, design paradigm for embedding the physics information in neural networks.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6189-6192"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207080","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
Polarization-assisted multi-domain virtual histopathological staining of tissue specimens. 组织标本的偏振辅助多域虚拟组织病理学染色。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.576905
Mingzhou Jiang, Jiahao Fan, Nan Zeng, Xinxian Zhang, Mickaël Li, Rui Huang, Shaoxiong Liu, Hui Ma, Chao He, Honghui He
{"title":"Polarization-assisted multi-domain virtual histopathological staining of tissue specimens.","authors":"Mingzhou Jiang, Jiahao Fan, Nan Zeng, Xinxian Zhang, Mickaël Li, Rui Huang, Shaoxiong Liu, Hui Ma, Chao He, Honghui He","doi":"10.1364/OL.576905","DOIUrl":"https://doi.org/10.1364/OL.576905","url":null,"abstract":"<p><p>Polarization imaging exhibits high sensitivity to tissue structures and is now widely used in biomedical studies and clinical practice. In particular, by integrating polarization information provided by Mueller matrix microscopy, generative adversarial networks have demonstrated effective domain-to-domain virtual staining capabilities. In this Letter, we propose a polarization-assisted multi-domain virtual histopathological staining network, Polar-starGAN, which employs tissue information provided by Mueller matrix polarization images for tissue specimen staining. The unsupervised multi-domain staining results on human gastrointestinal tissue slices confirm that Polar-starGAN can perform cross-domain transformation from polarization images acquired from hematoxylin and eosin (H&E)-stained slides to three other widely used staining methods. Through a customized unsupervised generative adversarial training strategy, the model generates virtually stained images with high structural consistency and color tones closely matching real slides. This provides an effective auxiliary tool for digital pathology and clinical histopathological diagnosis.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6016-6019"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207054","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
Terahertz quantum cascade laser dual-comb sources with high-repetition-rate detuning. 高重复率失谐的太赫兹量子级联激光双梳源。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.572016
Xianglong Bi, Xuhong Ma, Yanming Lu, Binbin Liu, Lulu Zheng, Guibin Liu, Shumin Wu, Kang Zhou, Ziping Li, Wenjian Wan, J C Cao, Min Li, Hua Li
{"title":"Terahertz quantum cascade laser dual-comb sources with high-repetition-rate detuning.","authors":"Xianglong Bi, Xuhong Ma, Yanming Lu, Binbin Liu, Lulu Zheng, Guibin Liu, Shumin Wu, Kang Zhou, Ziping Li, Wenjian Wan, J C Cao, Min Li, Hua Li","doi":"10.1364/OL.572016","DOIUrl":"https://doi.org/10.1364/OL.572016","url":null,"abstract":"<p><p>Terahertz dual-comb spectroscopy has emerged as a critical tool for real-time reaction monitoring and fast molecular dynamics studies. The acquisition rate of dual-comb spectroscopy is limited by the repetition rate difference between the two frequency combs. In this work, we engineer the cavity length difference between two quantum cascade laser (QCL)-based combs to achieve a record repetition rate detuning of 229.14 MHz, corresponding to a minimum time resolution of 4.36 ns. At equivalent frequency resolution, our system reduces the theoretical acquisition time by a factor of eight compared to a dual-comb system with a 21.60 MHz detuning. To further improve the signal-to-noise ratio (SNR) of the comb lines, we apply a computational phase correction algorithm. The combination of rapid acquisition and enhanced SNR makes this high-repetition-rate detuning dual-comb system highly promising for time-resolved spectroscopic applications.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"5949-5952"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207172","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
Video rate widefield sensitive polarized light microscopy by spectrally structured illumination. 采用光谱结构照明的视频率宽视场敏感偏振光显微镜。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.570077
Hugo Laviec, Sylvain Rivet, Matthieu Dubreuil, Bruno Boulbry, Mikhail Indenbom, Yann Le Grand
{"title":"Video rate widefield sensitive polarized light microscopy by spectrally structured illumination.","authors":"Hugo Laviec, Sylvain Rivet, Matthieu Dubreuil, Bruno Boulbry, Mikhail Indenbom, Yann Le Grand","doi":"10.1364/OL.570077","DOIUrl":"https://doi.org/10.1364/OL.570077","url":null,"abstract":"<p><p>In this Letter, we propose a setup to realize quantitative and sensitive widefield microscopy of optical retardation and azimuth of a birefringent specimen at video rate. The originality of the technique lies in the spectral structuration of the microscope illumination using spectral coding of polarization. The optical retardation and azimuth map of the specimen are obtained from a combination of three intensity images captured after successive illumination of the microscope by three phase-shifted spectrally structured spectra from light-emitting diodes (LEDs). The high commutation speed of the LEDs and the passive nature of all optical elements allow the acquisition at video rate and potentially more.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6141-6144"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207203","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
Rapid inverse design of super-resolution metalenses via a differentiable vectorial diffraction solver. 通过可微矢量衍射解算器的超分辨超透镜快速反设计。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.573186
Xin Liu, Jun Li, Qi Dai, Ming Lv, Chaofan Zhang
{"title":"Rapid inverse design of super-resolution metalenses via a differentiable vectorial diffraction solver.","authors":"Xin Liu, Jun Li, Qi Dai, Ming Lv, Chaofan Zhang","doi":"10.1364/OL.573186","DOIUrl":"https://doi.org/10.1364/OL.573186","url":null,"abstract":"<p><p>Metalenses based on optical superoscillation principles are widely applied in super-resolution imaging and can be achieved using inverse design methods. However, traditional approaches predominantly rely on heuristic algorithms, which perform random searches within the solution space. This results in low design efficiency and challenges in obtaining optimal solutions, particularly when dealing with high-dimensional continuous variables, such as multiple nanobricks rotation angle. In this work, we propose an end-to-end inverse design framework for super-resolution metalenses. This framework integrates a differentiable vectorial diffraction solver with a gradient descent algorithm to accurately compute the optical field and efficiently optimize super-resolution metalenses, including single focus, multifocal, and optical needle types. Compared with conventional methods, our approach reduces the optimization time by about 30 times and diminishes the reconstruction loss by more than 1-2 orders of magnitude. This work establishes a new paradigm, to the best of our knowledge, for efficient super-resolution metalens design with broad application potential.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6008-6011"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207215","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
Modulation-free broadband fiber optic current sensor based on a linear resonant cavity. 基于线性谐振腔的无调制宽带光纤电流传感器。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.575435
Sizhe Zhang, Qingwen Liu, Shuting Liu, Binglin Chen, Zuyuan He
{"title":"Modulation-free broadband fiber optic current sensor based on a linear resonant cavity.","authors":"Sizhe Zhang, Qingwen Liu, Shuting Liu, Binglin Chen, Zuyuan He","doi":"10.1364/OL.575435","DOIUrl":"https://doi.org/10.1364/OL.575435","url":null,"abstract":"<p><p>A modulation-free, low-cost fiber optic current sensor based on a broadband source and a single-mode linear resonant cavity is presented. The Faraday effect of the current under test results in a phase difference between the two beams with orthogonal circular polarization states. The out-cavity beams propagating in different circles continuously superimpose and are demodulated together. The utilization of a 3×3 coupler and balanced photodetector enables the acquisition of current information without active modulation. In the direct current measurement, a sensitivity of 1.749 mV/A and a mean relative error below 0.2% within 0-200 A are achieved. The sensor exhibits a good capability for detecting the alternating current. In addition, the short-term and long-term noise performance of this system is analyzed.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6229-6232"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207266","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
Measurement of optical amplification and population dynamics using ultrafast XUV spectroscopy of N2. 利用超快紫外光谱测量N2的光学放大和种群动态。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.565942
Rostyslav Danylo, Guillaume Lambert, Mykyta Redkin, Aurélien Houard, Xiang Zhang, Shaofen Gao, Liang Xu, Yi Liu, Arnaud Couairon, Vladimir Tikhonchuk, André Mysyrowicz
{"title":"Measurement of optical amplification and population dynamics using ultrafast XUV spectroscopy of N<sub>2</sub><sup />.","authors":"Rostyslav Danylo, Guillaume Lambert, Mykyta Redkin, Aurélien Houard, Xiang Zhang, Shaofen Gao, Liang Xu, Yi Liu, Arnaud Couairon, Vladimir Tikhonchuk, André Mysyrowicz","doi":"10.1364/OL.565942","DOIUrl":"https://doi.org/10.1364/OL.565942","url":null,"abstract":"<p><p>We demonstrate a very strong laser gain in the near UV, at 391 nm, involving one- and two-photon transitions between initial and final levels of the transition. This opens the way to the realization of all-optical lasers at short wavelengths. The amplifying medium is N<sub>2</sub><sup>+</sup> at low density, pumped by an intense laser source at a longer wavelength, i.e., 800 nm. It is probed by measuring with femtosecond precision the absorption of XUV high harmonics through the gas, displaying the evolution of the relevant electronic levels during the amplification process. We show the role of a third level forming a \"V scheme\" with the initial and final levels.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6205-6208"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207310","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
Fluence-dependent transient reflectivity measurements of a transition metal close to sub-d-band to Fermi surface transition: publisher's note. 靠近亚d波段到费米表面跃迁的过渡金属的依赖于通量的瞬态反射率测量：出版商注释。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.578790
Sergey Romashevskiy
{"title":"Fluence-dependent transient reflectivity measurements of a transition metal close to sub-<i>d</i>-band to Fermi surface transition: publisher's note.","authors":"Sergey Romashevskiy","doi":"10.1364/OL.578790","DOIUrl":"https://doi.org/10.1364/OL.578790","url":null,"abstract":"<p><p>This publisher's note contains a correction to Opt. Lett.50, 4590 (2025)10.1364/OL.565863.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6056"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207319","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
Tunable and prolonged emission of DCM in an intrinsic chiral CNT blending cholesteric liquid crystal-host. 本征手性碳纳米管混合胆甾型液晶基质中DCM的可调谐和长时间发射。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.567816
Yang Liu, Huangxin Gan, Yongfang Zhang, Jianhua Shang
{"title":"Tunable and prolonged emission of DCM in an intrinsic chiral CNT blending cholesteric liquid crystal-host.","authors":"Yang Liu, Huangxin Gan, Yongfang Zhang, Jianhua Shang","doi":"10.1364/OL.567816","DOIUrl":"https://doi.org/10.1364/OL.567816","url":null,"abstract":"<p><p>This work investigates a soft host for liquid crystal lasers, formed by blending intrinsic chiral carbon nanotubes (c-CNTs) into cholesteric liquid crystals (CLCs). The emission intensity of the doped luminescent dye (DCM) exhibited pronounced photonic bandgap dependence. Furthermore, blending c-CNTs significantly enhanced the DCM emission intensity and improved its long-term stability, attributed to multi-domain scattering arising from internal refractive index variations. These findings provide insights into the tunability of liquid crystal lasers and highlight the potential of c-CNTs blending CLC-hosts for applications in photonics, imaging, and medicine.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6105-6108"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207162","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
Visible-spectrum-spanning integrated optical-phased-array-based systems. 基于可见光谱的集成光相控阵系统。
IF 3.3 2区 物理与天体物理
Optics letters Pub Date : 2025-10-01 DOI: 10.1364/OL.570107
Henry Crawford-Eng, Andres Garcia Coleto, Jelena Notaros
{"title":"Visible-spectrum-spanning integrated optical-phased-array-based systems.","authors":"Henry Crawford-Eng, Andres Garcia Coleto, Jelena Notaros","doi":"10.1364/OL.570107","DOIUrl":"https://doi.org/10.1364/OL.570107","url":null,"abstract":"<p><p>In this Letter, we design and experimentally demonstrate the first, to the best of our knowledge, integrated optical-phased-array-based (OPA-based) system that simultaneously emits and controls beams of red, green, and blue light. First, we develop this visible-spectrum-spanning integrated OPA-based system architecture and the corresponding requisite devices and fabricate the system in a 300-mm wafer-scale silicon-photonics foundry process. Next, we use the integrated OPA-based system to experimentally demonstrate simultaneous 2D beam steering at red, green, and blue wavelengths. Finally, we apply the integrated OPA-based system to display a 2D RGB image of the MIT logo. This work enables visible-spectrum-spanning functionality for emerging applications of integrated OPAs that require visible-light operation, such as displays, 3D printing, atomic quantum systems, underwater optical communications, and optogenetics.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6065-6068"},"PeriodicalIF":3.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207173","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
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