An improved Fourier modal method (FMM) is developed for the design of metasurface diffractive optical elements (DOEs), which combines the iterative Fourier transform algorithm (IFTA) with FMM. In which, the IFTA is executed for a coarse solution; then, FMM is for a precise solution. We take a 5 × 5 metasurface DOE with nanorods as an example to explore the improved FMM (IFTA + FMM). By varying the diameter of the nanorods on the metasurface DOE, a 5 × 5 spot array DOE has been created with a diffraction angle of 48°× 48° in the far field. The analysis results show that the improved FMM (IFTA + FMM) requires fewer iterations, about 17 times, while direct FMM requires about 70 times. The DOE designed with an improved FMM achieves a diffraction efficiency of 79.6% with a uniformity of 24.2%, while the DOE designed with a direct FMM shows a diffraction efficiency of 76.9% with a uniformity of 27.7%. The improved FMM (IFTA + FMM) shows a similar accuracy, but is more timesaving, simple, and intuitive.
{"title":"An improved Fourier modal method for design of metasurface diffractive optical elements","authors":"Xingang Dai, Hong-Ru Zhang, Yanjun Hu, Gaoshan Jing, Zhiping Zhang, Guofang Fan","doi":"10.1088/2040-8986/ad3b1b","DOIUrl":"https://doi.org/10.1088/2040-8986/ad3b1b","url":null,"abstract":"\u0000 An improved Fourier modal method (FMM) is developed for the design of metasurface diffractive optical elements (DOEs), which combines the iterative Fourier transform algorithm (IFTA) with FMM. In which, the IFTA is executed for a coarse solution; then, FMM is for a precise solution. We take a 5 × 5 metasurface DOE with nanorods as an example to explore the improved FMM (IFTA + FMM). By varying the diameter of the nanorods on the metasurface DOE, a 5 × 5 spot array DOE has been created with a diffraction angle of 48°× 48° in the far field. The analysis results show that the improved FMM (IFTA + FMM) requires fewer iterations, about 17 times, while direct FMM requires about 70 times. The DOE designed with an improved FMM achieves a diffraction efficiency of 79.6% with a uniformity of 24.2%, while the DOE designed with a direct FMM shows a diffraction efficiency of 76.9% with a uniformity of 27.7%. The improved FMM (IFTA + FMM) shows a similar accuracy, but is more timesaving, simple, and intuitive.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140653935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-25DOI: 10.1007/s12596-024-01732-1
Sonia Akram, Jamshad Ahmad
{"title":"Retrieval of diverse soliton, lump solutions to a dynamical system of the nonlinear Biswas–Milovic equation and stability analysis","authors":"Sonia Akram, Jamshad Ahmad","doi":"10.1007/s12596-024-01732-1","DOIUrl":"https://doi.org/10.1007/s12596-024-01732-1","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140658235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-25DOI: 10.1007/s12596-024-01781-6
N. Arafa, S. M. Abd El-atty, Mohamed S. Arafa
{"title":"Performance analysis of NOMA system with imperfect SIC-based infrastructure-to-vehicle visible light communication","authors":"N. Arafa, S. M. Abd El-atty, Mohamed S. Arafa","doi":"10.1007/s12596-024-01781-6","DOIUrl":"https://doi.org/10.1007/s12596-024-01781-6","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140655195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-24DOI: 10.1088/2040-8986/ad42af
Alexis Hotte-Kilburn, Pablo Bianucci
The implementation of physical models with topological features in optical systems has garnered much attention in recent times. In particular, on-chip integrated photonics platforms are promising platforms enabling us to take advantage of the promise of topologically robust modes against inevitable fabrication defects. Here, we propose to study the SSH model superimposed in an optical ring resonator in a quantitative way using electromagnetic simulations. We are interested in lhe localized states that appear when a topological phase transition is introduced into the ring. In particular, we examine the extent to which topologically protected modes maintain their properties in the presence of random deformations in the surrounding lattice. We find that the modes maintain their properties when small amounts of disorder are introduced into the system. We also study loss mechanisms in the localized states, distinguishing between losses to the adjacent waveguide and to radiation, finding that the topological protection only applies to the former.
{"title":"Implementation of the SSH model in an optical ring resonator","authors":"Alexis Hotte-Kilburn, Pablo Bianucci","doi":"10.1088/2040-8986/ad42af","DOIUrl":"https://doi.org/10.1088/2040-8986/ad42af","url":null,"abstract":"\u0000 The implementation of physical models with topological features in optical systems has garnered much attention in recent times. In particular, on-chip integrated photonics platforms are promising platforms enabling us to take advantage of the promise of topologically robust modes against inevitable fabrication defects. Here, we propose to study the SSH model superimposed in an optical ring resonator in a quantitative way using electromagnetic simulations. We are interested in lhe localized states that appear when a topological phase transition is introduced into the ring. In particular, we examine the extent to which topologically protected modes maintain their properties in the presence of random deformations in the surrounding lattice. We find that the modes maintain their properties when small amounts of disorder are introduced into the system. We also study loss mechanisms in the localized states, distinguishing between losses to the adjacent waveguide and to radiation, finding that the topological protection only applies to the former.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140660895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-24DOI: 10.1007/s12596-024-01800-6
Nushrat Jahan, Avijit Ghosh, Ferdous Ahmed, Mohammad Fokhrul Islam Buian, Md. Yousup Ali, Asif Ahammad Miazee, Muhammad Sajid, Anup Nandi, Md. Mukter Hossain Emon, Md. Khaledur Rahman, Md. Ashraful Azad
{"title":"A comparative study of CuO based solar cell with ZnTe HTL and SnS2 ETL using SCAPS 1D simulation","authors":"Nushrat Jahan, Avijit Ghosh, Ferdous Ahmed, Mohammad Fokhrul Islam Buian, Md. Yousup Ali, Asif Ahammad Miazee, Muhammad Sajid, Anup Nandi, Md. Mukter Hossain Emon, Md. Khaledur Rahman, Md. Ashraful Azad","doi":"10.1007/s12596-024-01800-6","DOIUrl":"https://doi.org/10.1007/s12596-024-01800-6","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140662992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-23DOI: 10.1007/s12596-024-01834-w
Shahzad Anwar
{"title":"Bi-functional absorption performance of metamaterial structure based on metallic-square with U-shaped slot","authors":"Shahzad Anwar","doi":"10.1007/s12596-024-01834-w","DOIUrl":"https://doi.org/10.1007/s12596-024-01834-w","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140670023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-22DOI: 10.1007/s12596-024-01788-z
Zina Baraket, Osswa Soltani, Arvind Sharma, J. Zaghdoudi, Mounir Kanzari
{"title":"Design of a pressure sensor based on the 1D ternary Octonacci photonic crystal configurations","authors":"Zina Baraket, Osswa Soltani, Arvind Sharma, J. Zaghdoudi, Mounir Kanzari","doi":"10.1007/s12596-024-01788-z","DOIUrl":"https://doi.org/10.1007/s12596-024-01788-z","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140677253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-20DOI: 10.1007/s12596-024-01737-w
Supriya Kshetrapal, N. Ugemuge, Khushbu Sharma, R. Nafdey, S. V. Moharil
{"title":"Luminescence of some lanthanide activators in NaBi(MoO4)2","authors":"Supriya Kshetrapal, N. Ugemuge, Khushbu Sharma, R. Nafdey, S. V. Moharil","doi":"10.1007/s12596-024-01737-w","DOIUrl":"https://doi.org/10.1007/s12596-024-01737-w","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140679259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.1007/s12596-024-01804-2
O. González-Gaxiola, A. Biswas, Y. Yıldırım, A. Alshomrani
{"title":"Bright optical solitons for the dispersive concatenation model with power-law of self-phase modulation by Laplace-Adomian decomposition","authors":"O. González-Gaxiola, A. Biswas, Y. Yıldırım, A. Alshomrani","doi":"10.1007/s12596-024-01804-2","DOIUrl":"https://doi.org/10.1007/s12596-024-01804-2","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140683886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Coherent Modulation Imaging (CMI) stands out as a novel lensless imaging technique with notable advantages such as rapid convergence and single-shot capability. Nevertheless, conventional CMI implementations necessitate an additional step to acquire prior information about the modulator function, introducing complexity and reliance on other imaging techniques. Previous attempts to mitigate the requirement for precise modulator information using diverse objects have encountered slow convergence speeds. Here, we present an improved CMI algorithm, termed as blind CMI, which achieves blind recovery without prior knowledge of the modulator. This is achieved by leveraging sample priors and incorporating momentum acceleration. We validate our method through numerical simulations and optical experiments, demonstrating that the proposed blind CMI outperforms other state-of-the-art methods in terms of both convergence speed and reconstruction quality.
{"title":"Blind coherent modulation imaging using momentum acceleration and sample priors","authors":"Yishi Shi, Yiwen Gao, Junhao Zhang, Dongyu Yang, Wenjin Lyu, Tianhao Ruan","doi":"10.1088/2040-8986/ad40bf","DOIUrl":"https://doi.org/10.1088/2040-8986/ad40bf","url":null,"abstract":"\u0000 Coherent Modulation Imaging (CMI) stands out as a novel lensless imaging technique with notable advantages such as rapid convergence and single-shot capability. Nevertheless, conventional CMI implementations necessitate an additional step to acquire prior information about the modulator function, introducing complexity and reliance on other imaging techniques. Previous attempts to mitigate the requirement for precise modulator information using diverse objects have encountered slow convergence speeds. Here, we present an improved CMI algorithm, termed as blind CMI, which achieves blind recovery without prior knowledge of the modulator. This is achieved by leveraging sample priors and incorporating momentum acceleration. We validate our method through numerical simulations and optical experiments, demonstrating that the proposed blind CMI outperforms other state-of-the-art methods in terms of both convergence speed and reconstruction quality.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：