Optik最新文献 - Book学术

Theoretical investigation of the space division multiplexing capacity of multimode step-index plastic optical fibers 多模阶梯指数塑料光纤的空分复用能力理论研究

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-07-02 DOI: 10.1016/j.ijleo.2024.171945

Svetislav Savović , Konstantinos Aidinis , Chen Chen , Rui Min

引用次数: 0

Detection of elliptical polarization characteristics using a metalens 利用金属传感器检测椭圆偏振特性

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-28 DOI: 10.1016/j.ijleo.2024.171931

A.G. Nalimov , V.V. Kotlyar , A.A. Kovalev , S.D. Poletaev , Y.V. Khanenko

引用次数: 0

Combination of Muller matrix imaging polarimetry and artificial intelligence for classification of mice skin cancer tissue in-vitro and in-vivo 穆勒矩阵成像偏振测量法与人工智能相结合，对小鼠皮肤癌组织进行体外和体内分类

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-28 DOI: 10.1016/j.ijleo.2024.171932

Ngoc-Bao-Tran Nguyen , Quoc-Hoang-Quyen Vo , Thanh-Hai Le , Ngoc-Trinh Huynh , Quoc-Hung Phan , Thi-Thu-Hien Pham

{"title":"Combination of Muller matrix imaging polarimetry and artificial intelligence for classification of mice skin cancer tissue in-vitro and in-vivo","authors":"Ngoc-Bao-Tran Nguyen , Quoc-Hoang-Quyen Vo , Thanh-Hai Le , Ngoc-Trinh Huynh , Quoc-Hung Phan , Thi-Thu-Hien Pham","doi":"10.1016/j.ijleo.2024.171932","DOIUrl":"https://doi.org/10.1016/j.ijleo.2024.171932","url":null,"abstract":"<div><p>Mueller matrix imaging polarimetry is a fast and non-invasive technique for discriminating between different types of biological samples based on the characteristics of polarized light interacting with them. Combining Mueller matrix imaging polarimetry with artificial intelligence provides further advantages in detecting different kinds of medical conditions in an automated manner. Accordingly, the present study proposes a method based on Mueller matrix polarimetry and machine learning algorithms for discriminating between (1) four different types of mice skin tissues (normal, acanthosis, papilloma, and squamous cell carcinoma); (2) two types of mice skin tissues which show histological similarities to human equivalents (normal and squamous cell carcinoma); and (3) 7,12-dimethylbenz[<em>a</em>]anthracene/estrogen-induced mice skin tissues. Five machine learning classifiers, namely Random Forest, Support Vector Machine, K-Nearest Neighbor, Gradient Boosting, and Gaussian Naïve Bayes, are considered in the first and second applications, while three models (Support Vector Machine, K-Nearest Neighbor, Gradient Boosting) are considered in the third application. For each application, the features which dominate the machine learning prediction performance are determined through multivariate correlation matrix analysis, kernel density estimation, and Analysis of Variance tests. The experimental results show that the Random Forest model achieves the highest classification accuracy (93.55 %) for the first application, while the Support Vector Machine model yields the highest accuracy for both the second and third applications (97.66 % and 100 %, respectively). Overall, the proposed framework consisting of Mueller matrix imaging polarimetry and machine learning provides a strong foundation for the on-going development of screening and diagnosis methods for human skin cancer.</p></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484099","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

Multi-band image synchronous fusion model based on task-interdependency 基于任务相互依赖的多波段图像同步融合模型

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-28 DOI: 10.1016/j.ijleo.2024.171937

Suzhen Lin , Songwang Tian , Xiaofei Lu , Dawei Li , Yanbo Wang , Dong Yu

{"title":"Multi-band image synchronous fusion model based on task-interdependency","authors":"Suzhen Lin , Songwang Tian , Xiaofei Lu , Dawei Li , Yanbo Wang , Dong Yu","doi":"10.1016/j.ijleo.2024.171937","DOIUrl":"https://doi.org/10.1016/j.ijleo.2024.171937","url":null,"abstract":"<div><p>Synchronous multi-band image fusion is a challenging, yet urgent task in the development of high-precision detection systems. This study proposes a novel method for synchronous fusion modeling of multi-band images based on task-interdependency. In the proposed method, the task of image fusion is divided into two mutually exclusive sub-tasks that produce bright thermal targets and obtain precise textural details. First, two generators with different network structures and several discriminators produce a preliminary fused image. Second, an image fusion strategy is defined using a model- and data-driven theory to obtain fused images. Then, each discriminator classifies the fused image and source images of each band to force the generators to produce the desired results. A novel loss function is constructed to enhance the fused effect by selecting the most significant gradient loss and loss of brightness. Finally, the network is trained based on a multi-generative adversarial framework.The trained generators can be used individually or jointly as a model for fusing multiple images. We verified our method with several datasets and determined that it outperforms other current methods.</p></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141539458","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

Adaptive non-iterative histogram-based hologram quantization 基于直方图的自适应非迭代全息图量化

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-27 DOI: 10.1016/j.ijleo.2024.171933

Ekaterina A. Savchenkova, Andrey S. Ovchinnikov, Vladislav G. Rodin, Rostislav S. Starikov, Nikolay N. Evtikhiev, Pavel A. Cheremkhin

{"title":"Adaptive non-iterative histogram-based hologram quantization","authors":"Ekaterina A. Savchenkova, Andrey S. Ovchinnikov, Vladislav G. Rodin, Rostislav S. Starikov, Nikolay N. Evtikhiev, Pavel A. Cheremkhin","doi":"10.1016/j.ijleo.2024.171933","DOIUrl":"https://doi.org/10.1016/j.ijleo.2024.171933","url":null,"abstract":"<div><p>Quantization is widely used for compression, storage, transmission and display of computer-generated and digital holograms. It reduces number of hologram gradations to obtain better ratio of the quality of reconstructed 2D and 3D objects to the size of holographic images or videos. This paper proposes 2 methods of non-iterative quantization of holograms: adaptive non-uniform quantization based on histogram processing with peak shift (ANHS method) and additional application of logarithmic companding (ANHSL method). They were compared with 4 methods of iterative and non-iterative quantization on holograms with sizes up to 2048 × 2048 pixels. The proposed methods showed the best reconstruction quality that is higher up to 59 % in comparison with non-iterative uniform quantization. Especially the proposed methods give higher quality at little number of hologram gradations (from 2 to 16 gradations). In comparison with the most qualitative iterative methods (Lloyd-Max and k-means) the quality is increased up to 9 %, and processing time is reduced in 10–1000 times.</p></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484080","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

Annealing of bismuth telluride-based thick films by laser irradiation 通过激光辐照退火碲化铋基厚膜

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-27 DOI: 10.1016/j.ijleo.2024.171930

Matteo d’Angelo, Dario Crimella, Carmen Galassi, Nora Lecis, Ali Gökhan Demir

{"title":"Annealing of bismuth telluride-based thick films by laser irradiation","authors":"Matteo d’Angelo, Dario Crimella, Carmen Galassi, Nora Lecis, Ali Gökhan Demir","doi":"10.1016/j.ijleo.2024.171930","DOIUrl":"https://doi.org/10.1016/j.ijleo.2024.171930","url":null,"abstract":"<div><p>Interest towards fabrication and post-processing of thermoelectric micro-sized devices has increased in recent years. The coupling of inexpensive deposition technologies and fast laser treatments on “as-deposited” films is an attractive solution for industrial scalability. In this work, we propose an approach never reported before in literature: the utilization of a ns-pulsed active fibre laser to directly densify p-type bismuth telluride-based thick films deposited on silicon. A feasibility study was conducted on the material to determine optimal laser parameters: the treated products were characterized, and it was concluded that a value of laser fluence as low as 4.5 mJ cm<sup>−2</sup> is sufficient for densification. The material resulted cracked after the laser treatment, and it was demonstrated by SEM and profilometric analyses that shrinking occurs and sintering necks are formed; further, the arising of second phases after annealing was excluded by means of XRD analysis. Envisioning an industrial large area process with linear diode arrays source, a prediction of the laser power requirements to irradiate 1 mm<sup>2</sup> films in selected conditions is presented. More extensive studies will be performed to determine a narrower parameters window and determine a relationship between the film thickness and laser parameters for future applications to as-deposited films.</p></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0030402624003292/pdfft?md5=c5c35a5a705acec09b364551df837722&pid=1-s2.0-S0030402624003292-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the fascinating world of combinational photonic devices: A review 探索迷人的组合光子设备世界：综述

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-23 DOI: 10.1016/j.ijleo.2024.171923

Haripriya Noonepalle , Venkatrao Palacharla , Shashank Kumar Dubey , Anjani Kumar Singh , Sandip Swarnakar

{"title":"Exploring the fascinating world of combinational photonic devices: A review","authors":"Haripriya Noonepalle , Venkatrao Palacharla , Shashank Kumar Dubey , Anjani Kumar Singh , Sandip Swarnakar","doi":"10.1016/j.ijleo.2024.171923","DOIUrl":"https://doi.org/10.1016/j.ijleo.2024.171923","url":null,"abstract":"<div><p>In the present paper, several literature studies on various combinational photonic devices (PDs) using silicon based photonic crystals (PhC) have been studied. On considering various PhC structures, waveguides (WGs) and ring resonators (RRs) have been preferred because of their quality factor (QF), high transmission efficiency (TE), as well as stability in tuning the structures resonant wavelengths, as opposed to other designs. The articles have been classified based on the type of the material used, during the design manufacture and have been further divided according to the operation of the structure. The designed and performance parameters obtained in the collected articles like Contrast Ratio (CR), Bit Rates (BR), Response Times (RT), transmission time etc., have been summarized in this paper. The combinational photonic devices have been preferred because of their immense applications in calculators and computers that enables quick and accurate computations, data processors to execute logical operations, communication systems for smooth data transmission and handle error detection consumer electronics like TVs, smartphones and digital cameras, industrial control systems in automation and managing data, error detection and correction for data transmission and storage, digital signal processing to process and manipulate signals, instruction decoding to decode instructions and perform specific operations. These are seemed to be more advantageous because of their use in high-speed optoelectronic integrated devices and communication systems.</p></div>","PeriodicalId":19513,"journal":{"name":"Optik","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484096","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

Diffraction of laser light by a Ferrocell and ferrofluid layers: A comparison 铁氧体和铁流体层对激光的衍射：比较

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-22 DOI: 10.1016/j.ijleo.2024.171925

Vishakha Dave, R.V. Mehta

引用次数: 0

Indium selenide for mode-locked pulse generation in a Mid-infrared Er:ZBLAN fiber laser 硒化铟用于中红外 Er:ZBLAN 光纤激光器中的锁模脉冲生成

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-22 DOI: 10.1016/j.ijleo.2024.171928

Linyan Wang , Yushuo Bao , Xinhao Zhou , Huanhuan Li , Can Li , Junjie Zhang , Shiqing Xu

引用次数: 0

First-principles calculation of structural, electronic, optical and thermoelectric properties of Li3TrAs2 (Tr = Al, Ga) Li3TrAs2 (Tr = Al, Ga) 的结构、电子、光学和热电特性的第一性原理计算

IF 3.1 3区物理与天体物理

Optik Pub Date : 2024-06-20 DOI: 10.1016/j.ijleo.2024.171926

A. Vijay, R.D. Eithiraj

引用次数: 0