Optics Communications最新文献

{"title":"Implementation of D-TURTLE with nanocrystals for the characterization of the polarization state of few-cycle laser pulses","authors":"Óscar Pérez-Benito,&nbsp;Rosa Weigand","doi":"10.1016/j.optcom.2025.131698","DOIUrl":"10.1016/j.optcom.2025.131698","url":null,"abstract":"<div><div>The D-TURTLE technique for the characterization of the polarization state of few-cycle pulses has been implemented using ensembles of randomly oriented nanocrystals as non-linear medium. Recording traces for four different field projections we were able to unambiguously determine the polarization state and handedness of few-cycle laser pulses. This approach can be especially interesting in spectral ranges where no bulk crystals are available.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131698"},"PeriodicalIF":2.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Design, simulation, and comparison of optofluidics & sensing schemes for integrated optic biosensors","authors":"Chaitra Shri K,&nbsp;Malathi S","doi":"10.1016/j.optcom.2025.131742","DOIUrl":"10.1016/j.optcom.2025.131742","url":null,"abstract":"<div><div>Integrated Optic waveguide-based sensors are promising solutions for various applications, notably in the label-free detection of chemical and biological substances. For optimal sensitivity, the guided mode should interact with biomaterial. In this research article, we have considered Hollow-core waveguides and Strip waveguide-based biosensors. Hollow-core waveguides are analyzed as optofluidic devices in which bio-analytes form the core. Strip waveguide - Silicon on Insulator (SOI) has been considered for simulation purposes. Bulk sensing and Surface sensing scheme mechanisms were used to study the variations when bio analyte was encountered with waveguide material. In this article, we modelled, simulated, and analyzed two types of waveguides viz., Optofluidic channel with biomaterial as core, bulk sensing with biomaterial as clad covering the Silicon strip waveguide, and surface sensing with biomaterial covering the surface of the waveguide. Optofluidic channel with sensitivity in refractive index unit (RIU), the range of 2.4∗10 ⁻²/RIU to 2.8∗10 ⁻²/RIU; Bulk sensing sensitivity in the range of 2.5∗10 ⁻¹/RIU to 3.7∗10 ⁻¹/RIU; Surface sensing sensitivity in the range of 1.96∗10 ⁻²/RIU to 2.9∗10 ⁻³/RIU for different biomaterials. The main reason for selecting these ranges is that they represent practical and achievable values based on the physical interaction between light and biomaterials. These ranges also consider the technological constraints and the objectives of various biosensing applications. The novelty of the optofluidic scheme emanates from the ability to integrate fluidic and photonic elements to allow label-free detection due to the compact designs and high sensitivity. The optofluidic scheme offers advantages over bulk sensing (which relies on external cladding materials) and surface sensing (which only probes the interface) by providing volumetric sensing capabilities. We observed and analyzed results to derive design guidelines. Our findings assist in choosing an appropriate platform and optimizing sensitivity by the effective refractive index for the given bio application.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131742"},"PeriodicalIF":2.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"An online spectroscopy monitoring strategy for precisely constructing TiO2 nanocrystals during pulsed laser irradiation in liquids","authors":"Juntao Tan ,&nbsp;Jiatong Liu ,&nbsp;Bin Wang ,&nbsp;Pengke Yu ,&nbsp;Yang Li ,&nbsp;Shaofeng Zheng ,&nbsp;Jiaming Li ,&nbsp;Qingmao Zhang","doi":"10.1016/j.optcom.2025.131758","DOIUrl":"10.1016/j.optcom.2025.131758","url":null,"abstract":"<div><div>Precisely constructing TiO₂ nanocrystals poses significant challenges. In this work, online spectral analysis for TiO₂ nanocrystals under laser was proposed. In the complex spectral data, the wavelength dependence analysis was performed. Effective signals at 824 nm, 884 nm, 918 nm and 995 nm were extracted. 824 nm and 1100 nm revealed the size evolution; 884 nm, 918 nm, 995 nm, and 3300 cm⁻¹ revealed the nanocrystals evolution, intermediate grouping, and structural features. Additionally, preliminary particle size correlation of TiO₂ was described. This work demonstrates a valuable way for TiO₂ nanocrystals construction with the use of online spectral analysis.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131758"},"PeriodicalIF":2.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Raman soliton-induced time focusing and time-convex mirror in photonic crystal fiber","authors":"Hongrui Wang ,&nbsp;Jifang Rong ,&nbsp;Saili Zhao ,&nbsp;Qibo Xu ,&nbsp;Huailin Yang ,&nbsp;Hua Yang","doi":"10.1016/j.optcom.2025.131713","DOIUrl":"10.1016/j.optcom.2025.131713","url":null,"abstract":"<div><div>Temporal reflection can lead to the focusing, defocusing, or collimation of optical pulses. Here, a method is proposed for manipulating optical pulse characteristics using time surface mirrors. This study investigates solitons can be used to manipulate probe pulses for temporal focusing when a Gaussian pulse reflects from a temporal concave mirror formed at the trailing edge of a soliton. Furthermore, we discover approximate temporal total internal reflection and significant amplitude oscillations when the probe pulse undergoes temporal reflection from a temporal convex mirror formed by the soliton. These results can be utilized to create Raman soliton-induced time waveguides and realize light–light control, which showcase wide applications in the field of optics, particularly in photonics and the development of distinctive temporal waveguides, and providing insights into pulse compression and broadening.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131713"},"PeriodicalIF":2.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Compact 1-GHz repetition rate, 82-fs duration Er:fiber ring laser","authors":"Zhendong Chen ,&nbsp;Ruoao Yang ,&nbsp;Duo Pan ,&nbsp;Yanpeng Tang ,&nbsp;Jinpeng Cao ,&nbsp;Ya Wang ,&nbsp;Jie Miao ,&nbsp;Jingming Chen ,&nbsp;Meng Zhang ,&nbsp;Jianjun Wu ,&nbsp;Zhigang Zhang ,&nbsp;Jingbiao Chen","doi":"10.1016/j.optcom.2025.131756","DOIUrl":"10.1016/j.optcom.2025.131756","url":null,"abstract":"<div><div>We demonstrate the first 1 GHz fs erbium-doped fiber ring laser mode locked by nonlinear polarization evolution (NPE). The laser delivers a maximum average output power of 228 mW, correspondingly to single pulse energy of 0.228 nJ. The pulse spectral bandwidth is 32 nm, and the direct output pulse duration is 81.8 fs without extra-cavity compression. The measurement shows that the integrated relative intensity noise (RIN) and the residual root mean square phase noise are 0.0047 % (ranging from 1 Hz to 1 MHz) and 72 mrad (ranging from 10 Hz to 1 MHz), respectively. The result indicates that the high-repetition-rate lasers can provide competitive noise-related performances compared with other mode-locked erbium-doped fiber lasers. To the best of our knowledge, this represents the highest repetition rate achieved in a ring-cavity Er-doped fiber laser.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131756"},"PeriodicalIF":2.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Optimized visual simulation of 3D light field display based on differentiable ray tracing","authors":"Shuang Zhang,&nbsp;Shujun Xing,&nbsp;Bangshao Fu,&nbsp;Sheng Shen,&nbsp;Binbin Yan,&nbsp;Xinzhu Sang","doi":"10.1016/j.optcom.2025.131728","DOIUrl":"10.1016/j.optcom.2025.131728","url":null,"abstract":"<div><div>Optimized visual simulation of three-dimensional light field display (LFD) based on differentiable parameters is presented. By introducing differentiable parameters in visual simulation of the LFD system, the gradient information are linked with error metrics can provide a foundation and guidance for optimization. The visual simulation method is further refined to support the design of more complex light-control units, which enables the simulation of composite structures composed of lens arrays and parallax barrier arrays. The optimization of LFD systems is generally confined to the analysis of either the optical characteristics of the light-control device or the quality of LFD images. An objective function is established to evaluate the display performance of the LFD system. Optical experiments verify the effectiveness of the proposed method.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131728"},"PeriodicalIF":2.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Random lasing from rhodamine 6G-microsphere doped photonic crystal fibers","authors":"Huihao He ,&nbsp;Paula Russell-Hill ,&nbsp;Werner J. Blau ,&nbsp;Ivan M. Kislyakov ,&nbsp;Nikolay N. Rosanov ,&nbsp;Ningning Dong ,&nbsp;Jun Wang","doi":"10.1016/j.optcom.2025.131754","DOIUrl":"10.1016/j.optcom.2025.131754","url":null,"abstract":"<div><div>We report the realization of a photonic crystal random fiber laser (RFL) doped with different gain media. We studied the small-signal gain of devices by the variable stripe length technique and the effect of polyvinyl pyrrolidone (PVP) polymer on the random lasing. PVP significantly improved the features of the RFL because of the increase in scattering mean free path. We also systematically measured random lasing parameters, including threshold, linewidth, and polarized characteristics. Finally, time-dependent theory for random lasers was used to explain the evolution of the lasing spectrum.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131754"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Anti-Stokes fluorescence cooling in silica, achievements and technological perspectives","authors":"T. Meyneng ,&nbsp;Y. Messaddeq ,&nbsp;R. Kashyap","doi":"10.1016/j.optcom.2025.131619","DOIUrl":"10.1016/j.optcom.2025.131619","url":null,"abstract":"<div><div>Anti-Stokes fluorescence cooling has emerged as an effective and sophisticated method for the thermal management of optical systems. Following its recent demonstration in silicate materials, active research is focused on scaling these findings to high-power radiation-balanced laser systems. With advancements in the understanding of the underlying physics, along with improved material engineering, experimental results have exceeded initial expectations, culminating in the successful development of the first iterations of radiation-balanced fiber laser systems. This article reviews the progress in these findings and outlines future perspectives, particularly in light of recent advancements in vapor deposition technology and fiber engineering.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131619"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"High-fidelity diffuse optical tomography imaging based on MRI physics information-constrained stacked autoencoder neural network","authors":"Xinzheng Yu ,&nbsp;Limin Zhang ,&nbsp;Xi Zhang ,&nbsp;Dongyuan Liu ,&nbsp;Yanqi Zhang ,&nbsp;Feng Gao","doi":"10.1016/j.optcom.2025.131753","DOIUrl":"10.1016/j.optcom.2025.131753","url":null,"abstract":"<div><div>To achieve more accurate and reliable diffuse optical tomography (DOT) imaging, as well as increase the interpretability and generalizability of the DOT image reconstruction using deep learning, three distinct physics-constrained neural network (PCNN) architectures were proposed, with the stacked auto-encoder (SAE) neural network as a benchmark for comparison. These architectures directly incorporated MRI image gray values as physical prior information in three distinct ways: merging them into the network input, combining them into the loss function through a rescaling strategy by defining a total variation function, and combining both of the approaches. To investigate the effectiveness of the proposed networks, a series of numerical simulations were first performed, and the results were quantitatively evaluated and compared with the purely data-derived SAE neural network. Subsequently, the well-trained networks based on the simulation data were implemented to reconstruct the phantom experimental data to further investigate the effectiveness of the proposed methods. The experimental results revealed that the performance of the three PCNN models is superior to that of the pure neural network, with the third network architecture demonstrating the most significant advantages in terms of reconstruction fidelity and noise robustness.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131753"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Multifunctional polarization modulation based on all-dielectric metamaterial","authors":"Chunhua Qin ,&nbsp;Tingnuo Pan ,&nbsp;Yicheng Li ,&nbsp;Bo Lv ,&nbsp;Wenjia Li ,&nbsp;Yuxiang Li ,&nbsp;Ping Li ,&nbsp;Zheng Zhu ,&nbsp;Chunying Guan ,&nbsp;Jinhui Shi","doi":"10.1016/j.optcom.2025.131752","DOIUrl":"10.1016/j.optcom.2025.131752","url":null,"abstract":"<div><div>In this work, multifunctional polarization modulation of linearly and circularly polarized light in near-infrared range is achieved based on the all-dielectric metamaterial with bilayer silicon nanorods. In this design, a strong polarization conversion is accompanied by the Fano resonance generated from the coupling effect between the silicon blocks. In addition, the asymmetric transmission and circular dichroism are attained by rotating the silicon bar of the lattice. This work provides a way to realize the multifunctional polarization modulation devices in subwavelength platforms.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131752"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}