{"title":"Retraction Note: Optical and photoluminescence studies of CoFe2O4 nanoparticles deposited on different substrates","authors":"Sana Ben Khalifa, Saleh Chebaane, Lotfi Beji","doi":"10.1007/s11082-024-07928-w","DOIUrl":"10.1007/s11082-024-07928-w","url":null,"abstract":"","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Note: Precision medicine in sports application based on photonics and quantum computing with artificial intelligence","authors":"Kai Yang","doi":"10.1007/s11082-024-07912-4","DOIUrl":"10.1007/s11082-024-07912-4","url":null,"abstract":"","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mikhail Kudryashov, Leonid Mochalov, Ekaterina Slapovskaya, Yuliya Kudryashova, Diana Fukina, Ruslan Kriukov
{"title":"Optical and electrical properties of GaSe thin films prepared by PECVD","authors":"Mikhail Kudryashov, Leonid Mochalov, Ekaterina Slapovskaya, Yuliya Kudryashova, Diana Fukina, Ruslan Kriukov","doi":"10.1007/s11082-024-07905-3","DOIUrl":"10.1007/s11082-024-07905-3","url":null,"abstract":"<div><p>Gallium selenide (GaSe) thin films on sapphire (001) were first prepared by plasma enhanced chemical vapor deposition (PECVD), where high-purity elemental Ga and Se were used as starting materials. The nonequilibrium low-temperature RF discharge plasma (40.68 MHz) at reduced pressure (0.1 Torr) served to initiate chemical transformations. Gradual increase of the plasma discharge power while keeping other process parameters unchanged leads to an insignificant increase of gallium concentration in GaSe films. This results in a decrease in surface roughness and an increase in the value of the optical band gap of the films from 1.65 to 2.10 eV. All films consist of the δ-GaSe phase with average lattice parameters <i>a</i> = 3.77 Å and <i>c</i> = 32.10 Å. There is a tendency to form a texture oriented along the <i>c</i> axis with increasing plasma power. Conductivity of gallium selenide films showed an activation mechanism of charge transport. For the films deposited at 30, 50 and 70 W, the activation energies were about 0.5, 0.1 and 0.04 eV, respectively. The luminescent properties of GaSe thin films were also investigated.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huimin Han, Jun Yao, Yujun Wu, Yingyan Dou, Jingjuan Fu
{"title":"Retraction Note: Quantum communication based cyber security analysis using artificial intelligence with IoMT","authors":"Huimin Han, Jun Yao, Yujun Wu, Yingyan Dou, Jingjuan Fu","doi":"10.1007/s11082-024-07908-0","DOIUrl":"10.1007/s11082-024-07908-0","url":null,"abstract":"","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Note: Enhancing sports performance through quantum-based wearable health monitoring data analysis using machine learning","authors":"Feng Du","doi":"10.1007/s11082-024-07911-5","DOIUrl":"10.1007/s11082-024-07911-5","url":null,"abstract":"","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Note: Quantum photonics based health monitoring system using music data analysis by machine learning models","authors":"Jing Zhu","doi":"10.1007/s11082-024-07877-4","DOIUrl":"10.1007/s11082-024-07877-4","url":null,"abstract":"","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Noor al-huda A. Abass, Muslim F. Jawad, Adawiya J. Haider, Bakr A. Taha
{"title":"Exploring random laser characteristics in core@ shell nano-scatter centers: trends and opportunities","authors":"Noor al-huda A. Abass, Muslim F. Jawad, Adawiya J. Haider, Bakr A. Taha","doi":"10.1007/s11082-024-06881-y","DOIUrl":"10.1007/s11082-024-06881-y","url":null,"abstract":"<div><p>Concise review explores random lasers, utilizing a scattering medium for optical feedback instead of this the conventional optical cavity found in traditional lasers. Random laser generation relies on gain and dispersion for optical feedback and amplification. Among the myriad of complex nanostructures, surface-based nanomaterials are gaining attention. The materials take the form of core@ shell nanostructures, combining individual properties while maintaining distinct characteristics. In the realm of intelligence research, there is a significant emphasis on synthesizing core@ shell nanoparticles (NPS). Noble metals such as Au, Ag, Pt, and Pd serve as core materials, while metal oxide semiconductors like TiO<sub>2</sub>, SnO<sub>2</sub>, and Cu<sub>2</sub>O act as shell materials. This recent development has sparked considerable interest. The unique arrangement and function of the core and shell lead to diverse applications, including comprehensive photovoltaic systems, color-coded solar cells, and more. Furthermore, these core@ shell nanostructures find applications in random lasers, influencing fields such as medicine and technology. The implementation of random lasers extends to medical imaging devices, displays, sensors, and distinctive sign technologies. As researchers continue to explore the intricate characteristics of core@ shell nanostructures, new trends and opportunities are likely to emerge, promising breakthroughs in various scientific and technological domains.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tariq Mahmood, Ghadah Alhawael, Sonia Akram, Mati ur Rahman
{"title":"Exploring the Lie symmetries, conservation laws, bifurcation analysis and dynamical waveform patterns of diverse exact solution to the Klein–Gordan equation","authors":"Tariq Mahmood, Ghadah Alhawael, Sonia Akram, Mati ur Rahman","doi":"10.1007/s11082-024-07814-5","DOIUrl":"10.1007/s11082-024-07814-5","url":null,"abstract":"<div><p>This paper presents a comprehensive analysis of the <span>((1+1))</span>-dimensional Klein-Gordan equation which plays a significant role in various areas of theoretical and applied physics. The main focus of this research centers on several key areas. First, infinitesimal generators of symmetries were found by Lie symmetry invariance analysis. Then, using the adjoint representation, an ideal system was created based on the found Lie vectors. Secondly, by utilizing the analytical approach, namely the modified Sardar sub equation method, we systematically derive various novel soliton solution in the form of dark, bright, periodic, singular, combo, hyperbolic as well as mixed trigonometric. Finally, bifurcation analysis is performed at the system’s fixed points, revealing chaotic behavior when an external force is introduced into the dynamic system. To identify the chaotic characteristics, a range of tools, such as 3D and 2D phase plots, time series, Lyapunov exponents, and multistability analysis, are utilized. Additionally, the sensitivity analysis of the model is examined under different initial conditions. These results enhance the understanding of nonlinear wave phenomena in mathematical physics and hold potential applications across numerous scientific disciplines.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Determination and understanding of the structural electronic dynamic elastic and optic properties of Li2GaSb and Li3Sb by density functional theory","authors":"Sinem Erden Gulebaglan, Emel Kilit Dogan","doi":"10.1007/s11082-024-07391-7","DOIUrl":"10.1007/s11082-024-07391-7","url":null,"abstract":"<div><p>In this work, the structural, electronic, elastic, optical and dynamic properties of Li<sub>3</sub>Sb and Li<sub>2</sub>GaSb crystal structures were researched by using the density functional theory applied in Abinit and Quantum Espresso package programs. All calculations in both programs were performed using the Generalized Gradient Approximation as an exchange–correlation function in Kohn–Sham equations. When the structural properties of the crystals were examined, they were found to be in good agreement with other theoretical results. As a result of the calculations related to the electronic properties, it was determined that the Li<sub>3</sub>Sb crystal exhibited semiconducting properties and the Li<sub>2</sub>GaSb crystal exhibited metallic properties. Then, focusing on the dynamic properties of Li<sub>3</sub>Sb and Li<sub>2</sub>GaSb crystals, it was concluded that both crystals are dynamically stable. From the calculations made, it was concluded that the stable state did not deteriorate when pressure was applied to the Li<sub>3</sub>Sb crystal, but the stable state deteriorated when pressure was applied to the Li<sub>2</sub>GaSb crystal from 528 kbar pressure. In addition, the calculations showed that the thermal conductivity of Li<sub>3</sub>Sb is higher than that of Li<sub>2</sub>GaSb. By calculating the elastic properties, it was found that Li<sub>3</sub>Sb is a brittle material while Li<sub>2</sub>GaSb is an elastic material. Finally, based on the semiconductor properties of the Li<sub>3</sub>Sb crystal, its optical properties were investigated.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ahmed Abdulrab Ali Ebrahim, Faroq Saad, Abdelmajid Belafhal
{"title":"Intensity features of the general model vortex higher‑order cosh‑Gaussian beam in free space and gradient-index media","authors":"Ahmed Abdulrab Ali Ebrahim, Faroq Saad, Abdelmajid Belafhal","doi":"10.1007/s11082-024-07818-1","DOIUrl":"10.1007/s11082-024-07818-1","url":null,"abstract":"<div><p>In the framework of the generalized Huygens–Fresnel diffraction integral and paraxial approximation theory, the propagation features of the general model vortex higher-order cosh-Gaussian beam (GMvHchGB) in a free space (FS) and a gradient-index medium (GIM) are studied. The analytical formulas of the GMvHchGB propagating through the considered media are derived. According to the derived formulas, some numerical examples of the normalized intensity distributions and corresponding phase structure of the GMvHchGB in both FS and GIM are performed under different parameter conditions during propagation setups. The obtained results show that the beam with higher decentered parameters, the GMvHchGB propagating in FS case cannot maintain its initial shape during the propagation process, whereas the beam propagation in the GIM case will keep the original shape unchanged with a repeated self-focusing along propagation distances. Finally, the numerical results of both intensity and phase distributions demonstrated that the beam order <i>N</i> significantly influences the vortex property of the beam, which enhances the clear importance of the current work.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}