IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-28 DOI: 10.1016/j.ijleo.2025.172430

Claudevan A. Sousa , Antonio F.A.A. Melo , Nefe J.B. Silva , Tânia Patrícia Silva e Silva , Bartolomeu C. Viana , Francisco Eroni P. Santos , Hans Garcia

引用次数: 0

Retraction notice to “An intrusion identification and prevention for cloud computing: From the perspective of deep learning” [Optik 270 (2022) 170044] 关于“基于深度学习的云计算入侵识别与防御”的撤回通知[Optik 270 (2022) 170044]

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-26 DOI: 10.1016/j.ijleo.2025.172386

Anil Kumar , Rajabov Sherzod Umurzoqovich , Nguyen Duc Duong , Pratik Kanani , Arulmani Kuppusamy , M. Praneesh , Minh Ngyen Hieu

引用次数: 0

Laser-induced nonlinear far-field diffraction patterns of disperse azo dyes 分散偶氮染料的激光诱导非线性远场衍射图样

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-24 DOI: 10.1016/j.ijleo.2025.172422

M.Y. Shubar, H.L. Saadon, M.A. Rahma

引用次数: 0

Development of photonic devices using Genetic Algorithm integrated with Shannon entropy 结合香农熵的遗传算法开发光子器件

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-23 DOI: 10.1016/j.ijleo.2025.172411

Marcos Sergio Gonçalves, Alex Lattaro de Oliveira

引用次数: 0

Third order nonlinear optical (NLO) response of modified CuxO thin films via plasmonic noble nanoparticles 等离子体纳米粒子修饰CuxO薄膜的三阶非线性光学响应

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-23 DOI: 10.1016/j.ijleo.2025.172420

Md Rumon Shahrier , Sabah M. Mohammad , Mundzir Abdullah , Aijaz Ali Soomro , Abubakar A. Sifawa

{"title":"Third order nonlinear optical (NLO) response of modified CuxO thin films via plasmonic noble nanoparticles","authors":"Md Rumon Shahrier , Sabah M. Mohammad , Mundzir Abdullah , Aijaz Ali Soomro , Abubakar A. Sifawa","doi":"10.1016/j.ijleo.2025.172420","DOIUrl":"10.1016/j.ijleo.2025.172420","url":null,"abstract":"<div><div>Plasmonic-enhanced nanostructured materials have gained significant attention due to their unique electrical and optical properties and broad applicability across various scientific fields. Nonlinear effects and other optical phenomena would become nontrivial at greater optical intensities. This study investigates the third-order nonlinear optical (NLO) response of naturally oxidized Cu<sub>x</sub>O thin films enhanced by the incorporation of highly plasmonic Au and Ag nanoparticles (NPs) utilizing continuous-wave (CW) laser Z-scan techniques at 637 nm wavelength. In particular, the nonlinear absorption coefficient, <span><math><mi>β</mi></math></span> and nonlinear refractive index, <span><math><msub><mrow><mi>n</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>, of naturally oxidised and plasmonic-enhanced Cu<sub>x</sub>O thin film were determined. Characterization techniques, including HRTEM, FESEM, EDX, AFM, XRD, and UV–vis spectroscopy, confirmed the high quality and structural integrity of the plasmonic-enhanced Cu<sub>x</sub>O thin film. The (Au+Ag)/Cu<sub>x</sub>O thin film exhibited a significant enhancement in third-order NLO susceptibility, <span><math><mrow><msup><mrow><mo>[</mo><mi>χ</mi></mrow><mrow><mo>(</mo><mn>3</mn><mo>)</mo></mrow></msup><mo>]</mo></mrow></math></span> estimated as <span><math><mrow><mn>36.10</mn><mi>x</mi><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>3</mn></mrow></msup><mi>esu</mi></mrow></math></span>. These findings showcase new pathways for nonlinear optics research and potential applications in optoelectronic and photonic devices</div></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":"335 ","pages":"Article 172420"},"PeriodicalIF":3.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167113","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

Retraction notice to “Automation industry in cyber physical systems based on 4G IoT networks for operation controlling and monitoring management” [Optik 272 (2023) 170308] 关于“基于4G物联网网络的网络物理系统自动化产业运行控制与监控管理”的撤回通知[Optik 272 (2023) 170308]

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-23 DOI: 10.1016/j.ijleo.2025.172383

K.V. Mahesan , Anupong Wongchai , C. Tamizhselvan , S. Manoj Kumar , P. Vijayakumar , Bharat Singh

引用次数: 0

Retraction notice to “Intelligent-based ensemble deep learning model for security improvement in real-time wireless communication” [Optik 271 (2022) 170123] 关于“基于智能的集成深度学习模型用于实时无线通信安全改进”的撤回通知[Optik 271 (2022) 170123]

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-23 DOI: 10.1016/j.ijleo.2025.172384

S. Zhen , R. Surender , Gaurav Dhiman , K. Radha Rani , K.M. Ashifa , Faheem Ahmad Reegu

引用次数: 0

Stability analysis and extraction of newly cubic–quintic soliton wave structure for the generalized derivative resonant nonlinear Schrödinger equation through an analytical technique 广义导数共振非线性Schrödinger方程新三五次孤子波结构的稳定性分析与解析提取

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-23 DOI: 10.1016/j.ijleo.2025.172412

Mohamed A. Elhady , Hamdy M. Ahmed , Ahmed M. Ahmed , Haytham M. Rezk , Wafaa B. Rabie

{"title":"Stability analysis and extraction of newly cubic–quintic soliton wave structure for the generalized derivative resonant nonlinear Schrödinger equation through an analytical technique","authors":"Mohamed A. Elhady , Hamdy M. Ahmed , Ahmed M. Ahmed , Haytham M. Rezk , Wafaa B. Rabie","doi":"10.1016/j.ijleo.2025.172412","DOIUrl":"10.1016/j.ijleo.2025.172412","url":null,"abstract":"<div><div>This study investigates the analytical solutions of the generalized derivative resonant nonlinear Schrödinger equation, a fundamental model governing wave propagation in nonlinear dispersive media with applications in nonlinear optics, quantum mechanics, and plasma physics. We employ a modified extended direct algebraic method to systematically derive exact solutions, extending traditional approaches to incorporate cubic–quintic nonlinearity, which accounts for the interplay between self-focusing and defocusing effects.</div><div>By transforming the generalized derivative resonant nonlinear Schrödinger equation into an integrable algebraic form, we obtain a diverse set of analytical solutions, including bright and dark solitons, singular solitons, periodic waves, rational solutions, exponential solutions, Jacobi and Weierstrass elliptic functions. These solutions provide deep insights into the formation and dynamics of localized wave structures in nonlinear systems. We then conduct a rigorous stability analysis of the obtained solitons through linear perturbation theory, identifying critical parameter regimes where stable propagation occurs. The stability thresholds are shown to depend fundamentally on the balance between cubic self-focusing and quintic defocusing effects. To validate our results, we present numerical simulations and graphical representations of selected solutions, illustrating their stability and propagation characteristics. Our findings contribute to the theoretical understanding of nonlinear wave phenomena and offer potential applications in optical communications, quantum information, and ultrafast laser physics. This work not only advances the analytical treatment of the generalized derivative resonant nonlinear Schrödinger equation but also provides a robust framework for exploring other high-order nonlinear evolution equations in mathematical physics.</div></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":"335 ","pages":"Article 172412"},"PeriodicalIF":3.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135179","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

Retraction notice to “EEG signal processing by feature extraction and classification based on biomedical deep learning architecture with wireless communication” [Optik 270 (2022) 170037] 关于“基于无线通信生物医学深度学习架构的EEG信号特征提取与分类处理”的撤回通知[Optik 270 (2022) 170037]

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-23 DOI: 10.1016/j.ijleo.2025.172385

Suhasini Sodagudi , Sridhar Manda , Bandi Smitha , N. Chaitanya , Mohammed Altaf Ahmed , Nabamita Deb

引用次数: 0

TiO2-FG-based plasmonic sensor with enhanced figure of merit for sensing applications: A numerical approach 基于二氧化钛-石墨烯的等离子体传感器，具有增强的性能图，用于传感应用：数值方法

IF 3.1 3区物理与天体物理

Optik Pub Date : 2025-05-22 DOI: 10.1016/j.ijleo.2025.172421

Rahul Runthala , N. Grover , Pankaj Arora

{"title":"TiO2-FG-based plasmonic sensor with enhanced figure of merit for sensing applications: A numerical approach","authors":"Rahul Runthala , N. Grover , Pankaj Arora","doi":"10.1016/j.ijleo.2025.172421","DOIUrl":"10.1016/j.ijleo.2025.172421","url":null,"abstract":"<div><div>A refractive index-based surface plasmon resonance sensor using a multilayer heterostructure in the Kretschmann configuration is proposed for the near-infrared region. In the proposed configuration, aluminum is used as a plasmonic metal, titanium dioxide is used as a dielectric layer, and a fluorinated graphene (FG) layer is used as a 2D nanomaterial to enhance the performance parameters. A thorough comparative study is conducted between popularly used titanium compounds: Titanium dioxide (TiO<sub>2</sub>) and Titanium disilicide (TiSi<sub>2</sub>). For the proposed SPR sensor, each layer is engineered and optimized on the grounds of linewidth, detection accuracy (DA), and Figure of Merit (FOM), which are the critical performance parameters. To this end, the geometrical parameters are calculated using the transfer matrix method and analyzed meticulously to find the optimum trade-off points. The proposed sensor is numerically tested efficiently to sense different concentrations of hemoglobin in human blood. For the angle interrogation technique at the wavelength of 1550 nm, the sensor provides an enhanced FOM of 462.8 RIU<sup>−1</sup> and a DA of 4 degrees<sup>−1</sup>. Thus, the proposed design opens a broader window for bio-sensing applications because of the advantages TiO<sub>2</sub> and FG layers offer in enhancing the sensing parameters.</div></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":"335 ","pages":"Article 172421"},"PeriodicalIF":3.1,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146851","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

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