Optics Communications最新文献_第10页

Fully inorganic perovskite quantum dots grown in situ in SiO2 aerogels: green preparation, excellent stability, and their LED applications 在SiO2气凝胶中原位生长的全无机钙钛矿量子点：绿色制备，优异的稳定性及其LED应用

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-05 DOI: 10.1016/j.optcom.2025.132426

Ou Hai , Keke Guan , Tong Li , Zhiyuan Yu , Peng Li , Hang Li , Jiaxin Qin , Xin An

{"title":"Fully inorganic perovskite quantum dots grown in situ in SiO2 aerogels: green preparation, excellent stability, and their LED applications","authors":"Ou Hai , Keke Guan , Tong Li , Zhiyuan Yu , Peng Li , Hang Li , Jiaxin Qin , Xin An","doi":"10.1016/j.optcom.2025.132426","DOIUrl":"10.1016/j.optcom.2025.132426","url":null,"abstract":"<div><div>Perovskite quantum dots have become a research hotspot due to their excellent luminescence properties such as high PLQY and narrow half-wide peaks, but the complex preparation process and poor stability are the main problems affecting their application. In this study, CsPbX<sub>3</sub>(X = Br,I) quantum dots were uniformly grown in situ in the inner pores of SiO<sub>2</sub> aerogels by molten salt method in the case of all inorganic ligands, so that perovskite quantum dots can be generated and effectively protected at the same time. The CsPbBr<sub>3</sub>@SiO<sub>2</sub> aerogel and CsPbI<sub>3</sub>@SiO<sub>2</sub> aerogel composites exhibit highest luminescence intensities at 523 nm and 680 nm respectively, and have narrow half-peak widths (20 nm and 40 nm). At the same time, they have enhanced stability under air, UV lamp and high temperature. After 7 days of exposure to air and UV lamp, the PL strength of the CsPbBr<sub>3</sub>@SiO<sub>2</sub> aerogel composites remained 74.5 % and 133 % respectively. Finally, the green and white LED devices have been successfully constructed by laminating CsPbX<sub>3</sub>@SiO<sub>2</sub> aerogel composites on the surface of a 460 nm chip. These characteristics have laid a good foundation for the application of LED devices, and at the same time, CsPbX<sub>3</sub>@SiO<sub>2</sub> aerogel composites show great potential in luminescence applications.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132426"},"PeriodicalIF":2.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019319","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

Annular Pump-Based OPCPA for Vortex Pulses Amplification 基于环形泵的涡旋脉冲放大OPCPA

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-05 DOI: 10.1016/j.optcom.2025.132427

Mingxiong Li , Bin Zhang , Feng Lu , Zheqiang Zhong

{"title":"Annular Pump-Based OPCPA for Vortex Pulses Amplification","authors":"Mingxiong Li , Bin Zhang , Feng Lu , Zheqiang Zhong","doi":"10.1016/j.optcom.2025.132427","DOIUrl":"10.1016/j.optcom.2025.132427","url":null,"abstract":"<div><div>We proposed and numerically studied an optical parametric chirped amplification (OPCPA) scheme for amplification of ultrashort vortex pulses using annular pump beams. Compared to the scheme using super-Gaussian pump beams, the annular pump beam can provide better spatial overlap with the vortex beam, enhancing energy conversion efficiency while preserving the annular intensity distribution of the vortex beam. Numerical simulation results demonstrate advantages of the annular pump scheme over the super-Gaussian pump scheme. Firstly, the annular pump scheme significantly reduces the shift of the helical phase singularity while better maintaining the intensity symmetry of the signal beam along the walk-off direction. Secondly, it achieves higher energy conversion efficiency. Finally, under the condition that the total pump energy input is equal, the annular scheme produces a broader output signal spectral bandwidth compared to the super-Gaussian scheme. Furthermore, the impact of noncollinear angle on vortex purity, as well as the effects of intensity distribution distortion and wavefront phase distortion of both the signal and pump beams on the performance of the annular pump scheme, were analyzed in detail. We hope these results can provide novel insights and references for the design of ultrashort vortex pulse optical parametric amplification systems.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132427"},"PeriodicalIF":2.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027460","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

Study of frequency-guided-assisted residual optical carrier algorithms in low-cost coherent optical communication 低成本相干光通信中频导辅助残馀光载波算法研究

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-05 DOI: 10.1016/j.optcom.2025.132423

Yichen Li, Yifan Chen, Jianyu Long, Chen Wang, Jianjun Yu

{"title":"Study of frequency-guided-assisted residual optical carrier algorithms in low-cost coherent optical communication","authors":"Yichen Li, Yifan Chen, Jianyu Long, Chen Wang, Jianjun Yu","doi":"10.1016/j.optcom.2025.132423","DOIUrl":"10.1016/j.optcom.2025.132423","url":null,"abstract":"<div><div>This paper investigates a phase noise suppression scheme based on residual optical carrier (ROC) for low-cost distributed feedback (DFB) lasers exhibiting MHz-level phase noise. The core of the ROC scheme is generating an auxiliary residual optical carrier with a frequency pilot tone (FPT). This is done by slightly offsetting the bias of the IQ modulator at the transmitter. This setup lets the receiver perform frequency offset estimation (FOE) and carrier phase recovery (CPR) at the same time. Through systematic numerical simulations and experimental validation, we analyze the impact of critical parameters—including carrier-to-signal power ratio (CSPR), low-pass filter (LPF) characteristics (type, bandwidth), guard interval, and laser linewidth tolerance—on the system performance. The results demonstrate that a third-order Gaussian LPF with 360 MHz bandwidth achieves optimal phase noise suppression with a 1 GHz guard interval. The proposed scheme offers a low-complexity solution for short-range coherent optical communication systems.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132423"},"PeriodicalIF":2.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158610","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

Structural color patterns derived from photonic crystals with high saturation and brightness using spin coating method 利用自旋镀膜法从高饱和度、高亮度的光子晶体中获得结构彩色图案

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-04 DOI: 10.1016/j.optcom.2025.132380

Yeqi Wang, Mingxuan Qi, Haochuan Xu, Min Huang, Jiong Liang, Lixue Yang, Yu Liu, Xiu Li

{"title":"Structural color patterns derived from photonic crystals with high saturation and brightness using spin coating method","authors":"Yeqi Wang, Mingxuan Qi, Haochuan Xu, Min Huang, Jiong Liang, Lixue Yang, Yu Liu, Xiu Li","doi":"10.1016/j.optcom.2025.132380","DOIUrl":"10.1016/j.optcom.2025.132380","url":null,"abstract":"<div><div>In contrast to traditional pigment colors, structural colors exhibit advantages such as environmental friendliness, resistance to fading, and a rich array of optical effects. These characteristics align more closely with the theme of contemporary green development, leading to growing interest in structural color technologies. Here, we demonstrate a schematic utilizing SiO<sub>2</sub> microspheres of four different diameters as fundamental units to fabricate three-dimensional structural color patterns on paper substrates via screen printing and spin coating techniques. The effects of microsphere size and dispersion concentration on the color performance of the samples were investigated, and the results indicated that as the microsphere diameter decreased from 280 nm to 200 nm, the color observed shifted from magenta to blue at a 5° viewing angle. Additionally, when the microsphere diameter remained constant, an increase in the volume fraction of the SiO<sub>2</sub> microsphere dispersion from 10 % to 50 % resulted in a slight blue shift in hue and a gradual increase in saturation. Furthermore, by regulating the substrate's wettability, patterned structural colors with multi-hued, high-saturation, and sharply defined effects were achieved through screen printing and spin coating. This opens new possibilities for the widespread application of structural colors in the printing industry.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132380"},"PeriodicalIF":2.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007756","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

Optical trapping force exploration on Mie particles for structured light via multivariate sensitivity analysis and deep learning 基于多元灵敏度分析和深度学习的Mie粒子结构光的光捕获力探索

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-04 DOI: 10.1016/j.optcom.2025.132383

Jiahao Yu, Mi Feng, Caixia Guo, Baosheng Li, Xiaofang Lu, Zitao Wei, Yi Liang

{"title":"Optical trapping force exploration on Mie particles for structured light via multivariate sensitivity analysis and deep learning","authors":"Jiahao Yu, Mi Feng, Caixia Guo, Baosheng Li, Xiaofang Lu, Zitao Wei, Yi Liang","doi":"10.1016/j.optcom.2025.132383","DOIUrl":"10.1016/j.optcom.2025.132383","url":null,"abstract":"<div><div>Optical tweezers play a critical role in exploring light–matter interactions. However, characterization of optical forces – especially for structured light fields such as circular Airy beams – remains computationally intensive under conventional numerical frameworks like the Generalized Lorenz-Mie Theory (GLMT). To overcome this limitation, we present an enhanced hybrid deep learning framework that integrates deep neural networks, GLMT simulations, and multivariate sensitivity analysis for rapid and precise prediction of optical trapping forces acting on Mie particles. Our model is trained on 5000 GLMT-calculated datasets and achieves 97.9% prediction accuracy while reducing inference latency to just 32 ms—representing a <span><math><mrow><mn>3</mn><mo>.</mo><mn>9</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>4</mn></mrow></msup></mrow></math></span>-fold acceleration over traditional methods. By incorporating Sobol global sensitivity analysis, we identify the dominant beam parameters influencing optical force responses and guide the design of a fully connected neural network that achieves a mean squared error (MSE) of <span><math><mrow><mn>2</mn><mo>.</mo><mn>04</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup></mrow></math></span> and a relative prediction error below 1.2% for all validation data. These results demonstrate that spatial distribution variations contribute most significantly to optical force modulation and deep learning accelerates optical capability exploration, providing a deeper understanding on the optical trapping force of structured light and paving a way to quick intelligent design and optimization of structured-light-based optical tweezers.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132383"},"PeriodicalIF":2.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021012","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

Independent tuning of circular dichroism and Q-factor via Quasi-BIC resonances in bilayer plasmonic structures 双层等离子体结构中准bic共振对圆二色性和q因子的独立调谐

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-04 DOI: 10.1016/j.optcom.2025.132422

Zhongtao Liu , Hang Zhang , Hui Li

{"title":"Independent tuning of circular dichroism and Q-factor via Quasi-BIC resonances in bilayer plasmonic structures","authors":"Zhongtao Liu , Hang Zhang , Hui Li","doi":"10.1016/j.optcom.2025.132422","DOIUrl":"10.1016/j.optcom.2025.132422","url":null,"abstract":"<div><div>Bound states in the continuum (BICs) provides an effective mechanism for realizing high-quality-factor (high Q-factor) optical resonances by suppressing radiative losses. However, there is a critical challenge in simultaneously achieving a high Q-factor and strong field enhancement for modulating circular dichroism (CD) in metallic systems. In this work, we propose a bilayer plasmonic structure composed of rectangular metallic nanoapertures and nanorods, which enables strong CD responses while preserving a Q-factor on the order of 10<sup>2</sup>. We demonstrate that the generation of CD arises from distinct localized resonant interactions between the perforated upper metallic layer and the dipolar resonances supported by the lower nanorods. Notably, both the Q-factor and CD can be simultaneously tuned by adjusting the interlayer separation, revealing a clear positive correlation between them. The CD can be effectively tuned by geometric parameters such as rotational angle, nanorod length, and width, while keeping the Q-factor nearly unchanged. By adjusting the length of the upper-layer holes, the Q-factor can be modulated without altering the CD response. This study presents a robust strategy for achieving independent control of CD and Q-factor in plasmonic metasurfaces via resonant coupling between structurally engineered layers.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132422"},"PeriodicalIF":2.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019316","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

Nonlinear generation of Mathieu beams by the quasi-multivalue-encoding method 拟多值编码法产生马修波束的非线性

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-03 DOI: 10.1016/j.optcom.2025.132418

Jiaying Wang, Zhipeng Wang, Binglin Zhang, Gaojian Wu, Chen Chen, Ronger Lu

引用次数: 0

Computational spectrum reconstruction based on all-dielectric metasurface and correlation selection 基于全介电超表面和相关选择的计算谱重建

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-03 DOI: 10.1016/j.optcom.2025.132416

Tonghui Zhao , Jing Zhu , Wei Wu , Yuting Zhang , Jianglin Chen , Lianqing Zhu

{"title":"Computational spectrum reconstruction based on all-dielectric metasurface and correlation selection","authors":"Tonghui Zhao , Jing Zhu , Wei Wu , Yuting Zhang , Jianglin Chen , Lianqing Zhu","doi":"10.1016/j.optcom.2025.132416","DOIUrl":"10.1016/j.optcom.2025.132416","url":null,"abstract":"<div><div>A computational spectrum reconstruction method in the mid-wave infrared band based on all-dielectric metasurfaces and correlation selection is proposed in this study, aiming to address the limitations of traditional spectrometers, such as large volume and the difficulty in balancing resolution and miniaturization. By designing an all-dielectric metasurface structure composed of composite circular pillars, rectangular pillars, cross-shaped pillars, and annular nanoscale pillars, and combining a greedy algorithm to screen low-correlation transmission spectra, a filter measurement matrix with a low Pearson correlation coefficient (average absolute value of 0.2104) was constructed. Non-negative least squares (NNLS) and second-order difference regularization algorithms were used for spectral reconstruction. Experimental results show that within the wavelength range of 3–5 μm, this method achieves high-precision reconstruction of single narrowband spectra (full width at half maximum of 15 nm) and biomal spectra, with a spectral resolution of 25 nm. The root-mean-square error (RMSE) for the reconstruction of 6 sets of broadband spectra is 5.407 × 10<sup>−3</sup>. This scheme combines compactness and high-resolution characteristics, providing a new method for miniaturized mid-wave infrared spectral analysis and portable mid-wave infrared spectral detection.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132416"},"PeriodicalIF":2.5,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007747","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

Miniaturization of high peak power 954-nm hydrogen Raman laser 峰值功率954 nm氢拉曼激光器小型化研究

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-03 DOI: 10.1016/j.optcom.2025.132414

Zhensong Liu , Yuhui Liu , Yuxi Jia , Ming Xu , Jinglu Sun , Tao Li , Xianglong Cai , Suya Song , Qingwei Li , Jingwei Guo

引用次数: 0

Denoising method for Φ-OTDR systems based on deep non-negative matrix factorization and non-local means filtering 基于深度非负矩阵分解和非局部均值滤波的Φ-OTDR系统去噪方法

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-09-03 DOI: 10.1016/j.optcom.2025.132420

Shihe Zhang , Yafeng Cheng , Changpeng Ming , Chenxu Wang , Hanyong Wang , Lei Qian , Lei Dong , Ming Luo , Wu Liu , Hanbing Li , Tianye Huang , Xiang Li

{"title":"Denoising method for Φ-OTDR systems based on deep non-negative matrix factorization and non-local means filtering","authors":"Shihe Zhang , Yafeng Cheng , Changpeng Ming , Chenxu Wang , Hanyong Wang , Lei Qian , Lei Dong , Ming Luo , Wu Liu , Hanbing Li , Tianye Huang , Xiang Li","doi":"10.1016/j.optcom.2025.132420","DOIUrl":"10.1016/j.optcom.2025.132420","url":null,"abstract":"<div><div>The phase-sensitive optical time-domain reflectometry (Φ-OTDR) system based on Rayleigh backscattering (RBS) features high spatial resolution, long sensing distance, and strong capability for continuous monitoring, offering significant application prospects in the field of distributed optical fiber sensing. In practical applications, this system is often affected by various types of noise, primarily including laser phase noise, detector thermal noise, and environmental interference, all of which seriously impact the detection and localization accuracy of weak signals. To address these issues, this study proposes a novel denoising method that combines Deep Autoencoder-like Nonnegative Matrix Factorization (DANMF) with Non-local Means (NLM) filtering. The DANMF algorithm first decomposes the RBS signal into multiple hierarchical feature representations through multilayer nonnegative transformations, providing an initial modeling of complex Rayleigh scattering signals. Then, each extracted channel feature is individually processed using NLM filtering, which further suppresses residual noise while preserving key signal details. Experimental validation on a typical Φ-OTDR device demonstrates that the proposed DANMF-NLM method significantly improves the signal-to-noise ratio (SNR) and outperforms conventional methods. Moreover, compared to traditional deep learning models, this method requires fewer labeled samples and less computational resources, making it more practical and applicable for real-world engineering scenarios with complex noise environments.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"596 ","pages":"Article 132420"},"PeriodicalIF":2.5,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007757","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