Optics Communications最新文献_第9页

Optimization of laser induced periodic surface structures for surface enhanced Raman spectroscopy of extracellular vesicles 细胞外囊泡表面增强拉曼光谱的激光诱导周期表面结构优化

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-15 DOI: 10.1016/j.optcom.2025.131952

Simon Barter , Genevieve Boom , Jeffery Low , Francesco Merola , Claude Aguergaray , Larry Chamley , Lynsey Cree , Neil G.R. Broderick

{"title":"Optimization of laser induced periodic surface structures for surface enhanced Raman spectroscopy of extracellular vesicles","authors":"Simon Barter , Genevieve Boom , Jeffery Low , Francesco Merola , Claude Aguergaray , Larry Chamley , Lynsey Cree , Neil G.R. Broderick","doi":"10.1016/j.optcom.2025.131952","DOIUrl":"10.1016/j.optcom.2025.131952","url":null,"abstract":"<div><div>Gold coated laser-induced periodic surface structures (LIPSS) on stainless steel are proposed as effective substrates for surface-enhanced Raman spectroscopy (SERS). The nano-structuring of steel wafers by fem- tosecond laser pulses is achieved and optimized for use in analysing extracellular vesicles (EVs). A variety of parameters are considered – such as writing laser power, polarization, machining speed, and gold layer thick- ness – each with implications for the LIPSS morphology and, in turn, the SERS enhancement. Ultimately, the optimized nanostructure is shown to contribute an in- crease in the SERS enhancement factor of one order of magnitude. As the LIPSS are fabricated via a ’one- step’ method, the proposed device reduces both cost and manufacturing time compared to industry standard techniques. The capability of machined structures in detecting extracellular vesicles (EVs) from a choriocar- cinoma cell line (JEG-3), commonly used as a model for placental syncytiotrophoblasts, is demonstrated and applications in the detection of different diseases are discussed.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"589 ","pages":"Article 131952"},"PeriodicalIF":2.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166539","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}

引用次数: 0

1080-Nm dispersion-managed figure-8 fiber laser with a phase-biased nonlinear amplifying loop mirror 带有相位偏置非线性放大环镜的1080nm色散管理的8型光纤激光器

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-15 DOI: 10.1016/j.optcom.2025.131982

Kong Gao , Li Dong , Zhongben Pan , Hongwei Chu , Han Pan , Aimin Wang , Yizhou Liu , Dechun Li

{"title":"1080-Nm dispersion-managed figure-8 fiber laser with a phase-biased nonlinear amplifying loop mirror","authors":"Kong Gao , Li Dong , Zhongben Pan , Hongwei Chu , Han Pan , Aimin Wang , Yizhou Liu , Dechun Li","doi":"10.1016/j.optcom.2025.131982","DOIUrl":"10.1016/j.optcom.2025.131982","url":null,"abstract":"<div><div>We report on a dispersion-managed figure-8 fiber laser with a phase-biased nonlinear amplifying loop mirror (NALM). This figure-8 fiber laser incorporated a non-reciprocal phase bias and an unparallel grating pair in the optical cavity, enabling a self-starting mode-locking state with good wavelength tunability. Numerical simulations were employed to simulate the optical dynamics of the mode-locking laser pulse inside the fiber cavity, indicating the evolution of the spectral bandwidth, pulse duration, and pulse energy at different intracavity positions. A 26.4-MHz, 1080.3-nm mode-locking laser was realized from experiment based on the numerical results. The output powers delivered from the polarization beam splitter (PBS) and the fiber output coupler (FOC) were 1.04 mW and 0.15 mW, with the corresponding pulse durations of 0.97 ps and 0.84 ps, respectively. The integrated relative intensity noise (RIN) of the 1080.3-nm mode-locking laser was 0.059 % [10 Hz, 1 MHz]. The central wavelength of the figure-8 mode-locking fiber laser can be further tuned from 1040.8 nm to 1083.6 nm, based on the intracavity optical spectral filter introduced by the grating pair. This work can provide a reliable seed source for high-energy fiber laser systems.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"589 ","pages":"Article 131982"},"PeriodicalIF":2.2,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107376","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}

引用次数: 0

Spectral Beam Combining using a designed concave grating based on two stigmatic points 采用设计的基于两个柱头点的凹光栅进行光谱光束组合

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-14 DOI: 10.1016/j.optcom.2025.131994

Lin Zou, Sheng-bao Zhan, Wen-ze Niu, Tian-jun He, Wen-ran Le, Fan Cheng, Shen-long Zha

{"title":"Spectral Beam Combining using a designed concave grating based on two stigmatic points","authors":"Lin Zou, Sheng-bao Zhan, Wen-ze Niu, Tian-jun He, Wen-ran Le, Fan Cheng, Shen-long Zha","doi":"10.1016/j.optcom.2025.131994","DOIUrl":"10.1016/j.optcom.2025.131994","url":null,"abstract":"<div><div>The aberrations of a concave grating have a serious influence on the beam quality. To improve beam quality in spectral beam combining (SBC) using a concave grating, an aberration-reduced approach which is called two stigmatic points is adopted. By means of the method, the aberration-reduced design steps were presented, and the mount parameters of the designed grating were obtained. The simulation results show that the low-aberration wavelength range can reach about 40 nm from the wavelength of 1530∼1570 nm, which is significantly larger than that of the grating with a stigmatic point. Further, the simulation results of SBC with 5-element indicate that, in both horizontal and vertical directions, the spot radii of the combined beam are almost equal, and the values of <em>M</em><sub><em>x</em></sub><sup>2</sup> and <em>M</em><sub><em>y</em></sub><sup>2</sup> are 1.36 and 1.38. Based on the ordered grating, an SBC experimental system was established. The diffraction experiment shows that, for the fiber laser with a wavelength of 1561.48 nm, the measured <em>M</em><sub><em>x</em></sub><sup>2</sup> and <em>M</em><sub><em>y</em></sub><sup>2</sup> are 1.44 and 1.46, respectively. Further, the SBC experiment shows that, for the combined beam of 2-element, the measured <em>M</em><sub><em>x</em></sub><sup>2</sup> and <em>M</em><sub><em>y</em></sub><sup>2</sup> are 1.52 and 1.54, respectively.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"590 ","pages":"Article 131994"},"PeriodicalIF":2.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098448","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}

引用次数: 0

Investigation on multiple soliton operations in erbium-doped fiber lasers based on Bi2O2Te saturable absorbers 基于Bi2O2Te可饱和吸收体的掺铒光纤激光器多孤子运算研究

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-14 DOI: 10.1016/j.optcom.2025.132000

Xiaoyu Zhao , Yu Wei , Lezheng Wang , Jiale Wu , Yingfei Zhao , Jiayu Shen , Yuanxiang Xu , Wenfei Zhang , Caixun Bai , Cheng Lu , Nannan Xu , Huanian Zhang

{"title":"Investigation on multiple soliton operations in erbium-doped fiber lasers based on Bi2O2Te saturable absorbers","authors":"Xiaoyu Zhao , Yu Wei , Lezheng Wang , Jiale Wu , Yingfei Zhao , Jiayu Shen , Yuanxiang Xu , Wenfei Zhang , Caixun Bai , Cheng Lu , Nannan Xu , Huanian Zhang","doi":"10.1016/j.optcom.2025.132000","DOIUrl":"10.1016/j.optcom.2025.132000","url":null,"abstract":"<div><div>In this experiment, a Bi<sub>2</sub>O<sub>2</sub>Te nanosheet solution was prepared by the liquid phase exfoliation (LPE) method. By placing the Bi<sub>2</sub>O<sub>2</sub>Te nanosheet solution on a tapered fiber, a saturable absorber (SA) was formed. A Bi<sub>2</sub>O<sub>2</sub>Te-SA ring cavity system based on the 1.5 μm band was constructed, thus realizing the application of Bi<sub>2</sub>O<sub>2</sub>Te in erbium doped fiber lasers (EDFLs). Within the pump power range of 252 mW–427 mW, stable conventional soliton mode locked pulses (CS) were successfully obtained. Its 3 dB bandwidth was 2.18 nm, and the maximum pulse energy was 110.46 pJ. Subsequently, by adjusting the pump power and the polarization state in the cavity, a stable second order harmonic mode locked pulse (HML) was obtained when the pump power was 417 mW. Its 3 dB bandwidth was 2.80 nm. In addition, at pump powers of 369 mW, 379 mW and 406 mW, stable two-pulses, three-pulses and four-pulses were obtained respectively. This was the first time that multi-pulse operation was achieved in a fiber laser based on Bi<sub>2</sub>O<sub>2</sub>Te-SA. The experimental results show that Bi<sub>2</sub>O<sub>2</sub>Te has excellent nonlinear optical modulation performance and has broad research prospects in soliton evolution. The applications of abundant soliton states in fields such as quantum computing and quantum communication are also worth looking forward to.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"588 ","pages":"Article 132000"},"PeriodicalIF":2.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071962","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}

引用次数: 0

Self and joint intensity statistics of Laguerre–Gaussian modes propagating in air turbulence 空气湍流中传播的拉盖尔-高斯模的自强度统计量和联合强度统计量

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-14 DOI: 10.1016/j.optcom.2025.131944

K.O. Bastian , S. Pokharel , M. Mahdavifar , O. Korotkova

引用次数: 0

Research on VO2-based absorbing/polarization conversion terahertz devices 基于vo2的吸收/偏振转换太赫兹器件的研究

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-13 DOI: 10.1016/j.optcom.2025.131995

Binggang Xiao, Xinyi Wang, Min Gao

{"title":"Research on VO2-based absorbing/polarization conversion terahertz devices","authors":"Binggang Xiao, Xinyi Wang, Min Gao","doi":"10.1016/j.optcom.2025.131995","DOIUrl":"10.1016/j.optcom.2025.131995","url":null,"abstract":"<div><div>This study focuses on the development of terahertz devices based on vanadium dioxide (VO<sub>2</sub>) that can perform both absorption and polarization conversion. VO<sub>2</sub> thin films have been extensively studied due to their insulator-metal transition properties, which allow VO<sub>2</sub> to undergo a reversible phase change from an insulating state to a metallic state under the influence of light, heat, or stress, accompanied by a sudden change in physical properties. The technical realization of this study involves providing a dual-functional metasurface device based on VO<sub>2</sub> that can switch between a line-to-line polarization converter and an absorber by changing temperature. This design not only overcomes the shortcomings of existing technologies but also offers new possibilities for the development of terahertz communication devices, especially in the context of the development of communication technology, making this research scientifically significant and promising for practical applications. Future work will focus on further optimizing device performance, reducing costs, and enabling large-scale production to meet the growing demands of terahertz communication technology.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"589 ","pages":"Article 131995"},"PeriodicalIF":2.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068701","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}

引用次数: 0

Dual-parameter sensing theory for high-precision protein concentration detection with THz metasurfaces 太赫兹超表面高精度蛋白质浓度检测的双参数传感理论

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-13 DOI: 10.1016/j.optcom.2025.131997

Jinjun Bai , Yu Tian , Ying Shi , Shasha Wang , Wei Xu , Zhigui Lin , Shengjiang Chang

{"title":"Dual-parameter sensing theory for high-precision protein concentration detection with THz metasurfaces","authors":"Jinjun Bai , Yu Tian , Ying Shi , Shasha Wang , Wei Xu , Zhigui Lin , Shengjiang Chang","doi":"10.1016/j.optcom.2025.131997","DOIUrl":"10.1016/j.optcom.2025.131997","url":null,"abstract":"<div><div>Protein concentration detection (PCD) has been extensively used in clinical diagnostics and biopharmaceutical fields. Recently, compared with traditional PCD methods, terahertz (THz) detection has garnered widespread attention due to its advantages of being label-free, non-invasive and non-ionizing. However, current THz protein detection techniques rely on single-parameter sensing theory, which ignores the effect of temperature on protein concentration, resulting in relatively low detection precision. Consequently, in this paper, a dual-parameter sensing theory that considers both protein concentration and temperature is proposed. Based on this theory, a dual-BIC THz metasurface sensor is designed, and the transmission spectra, physical mechanism, structural parameters and sensing characteristic of the device are theoretically investigated using the full-vector finite element method. The results indicate that the refractive index sensitivities and temperature sensitivities for A-mode and B-mode are 159 GHz/RIU, 41.2 kHz/°C and 316 GHz/RIU, 24.4 kHz/°C, respectively. When the sensor is applied to PCD, the calculations reveal that the relative error is reduced by two orders of magnitude using our proposed theory, as compared to the single-parameter sensing theory. In summary, the dual-parameter sensing theory offers a fundamental theoretical framework for achieving high-precision PCD, and the dual-BIC metasurface structure serves as an ideal device for this purpose.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"588 ","pages":"Article 131997"},"PeriodicalIF":2.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070911","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}

引用次数: 0

High repetition rate, tunable mid-infrared vortex beam generation based on ZGP optical parametric oscillator 基于ZGP光参量振荡器的高重复率、可调谐中红外涡旋光束产生

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-13 DOI: 10.1016/j.optcom.2025.131996

Jun Meng , Fei Wang , Gaoyou Liu , Zhaojun Liu

引用次数: 0

Polarized hyperspectral image fusion method for targets in sea clutter background 海杂波背景下目标偏振高光谱图像融合方法

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-13 DOI: 10.1016/j.optcom.2025.131993

Yuan Zhang , Xueping Ju , Changxiang Yan , Jian Bo , Xianfeng Li , Junqiang Zhang

{"title":"Polarized hyperspectral image fusion method for targets in sea clutter background","authors":"Yuan Zhang , Xueping Ju , Changxiang Yan , Jian Bo , Xianfeng Li , Junqiang Zhang","doi":"10.1016/j.optcom.2025.131993","DOIUrl":"10.1016/j.optcom.2025.131993","url":null,"abstract":"<div><div>Maritime target detection in complex marine environments is challenging, particularly with sea clutter interference, which hampers the efficacy of traditional radar and optical spectral or polarization features in target discrimination. To address this, a radiant energy model is developed to simulate the polarized hyperspectral properties of the ocean, forming the basis for the proposed detection method. This study introduces a spectral-polarization feature fusion method to enhance target detection accuracy by integrating hyperspectral spectral information with polarization feature structure. The first-order difference method is employed to compute the gradient of linear polarization. For each pixel, the cosine of the average gradient direction across all bands is calculated and used as a weighting factor. The intensity image is then weighted and fused, followed by principal component analysis (PCA) to extract the most representative bands. Experimental evaluations under varying signal-to-noise ratios show that the fused image significantly improves contrast and standard deviation metrics. Specifically, the fused image achieves 7.64 % and 9.41 % improvements in contrast and standard deviation, respectively. Moreover, the fused polarized hyperspectral image attains 98.91 % target recognition accuracy, a 12.24 % improvement over the polarized multispectral fused image. In terms of detection performance, it also yields notable gains in precision by 11.2 %, recall by 8.6 %, and F1-score by 11.4 %. The proposed method effectively suppresses sea clutter and enhances target detection accuracy and robustness.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"591 ","pages":"Article 131993"},"PeriodicalIF":2.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271109","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}

引用次数: 0

Double-frequency photonic spin Hall effect in a tripod atomic system 三脚架原子系统中的双频光子自旋霍尔效应

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-05-12 DOI: 10.1016/j.optcom.2025.131930

Muqaddar Abbas , Yunlong Wang , Feiran Wang , Pei Zhang , Hamid R. Hamedi

引用次数: 0