Pub Date : 2024-07-12DOI: 10.1007/s12596-024-02004-8
Hina Dalal, Mukesh Kumar, Poonam Devi, Neeraj Sehrawat, Diksha Solanki, Surendra Kumar, R. Malik
{"title":"Study of crystallographic and optoelectronic behavior of single-phase Ca9La(VO4)7: Sm3+ nanophosphor for modern illumination sector","authors":"Hina Dalal, Mukesh Kumar, Poonam Devi, Neeraj Sehrawat, Diksha Solanki, Surendra Kumar, R. Malik","doi":"10.1007/s12596-024-02004-8","DOIUrl":"https://doi.org/10.1007/s12596-024-02004-8","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141655030","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 : 2024-07-12DOI: 10.1007/s12596-024-02011-9
Muhammad Sajid, Khuram Ali, Humayon Shehzad Shah, Asma Shahid, S. A. Bakar, Muhammad Yousaf, Shern-Long Lee
{"title":"Boosting solar cell performance: optimization of WS2 absorber with Cu2O HTL & ZnSe ETL using SCAPS-1D simulation","authors":"Muhammad Sajid, Khuram Ali, Humayon Shehzad Shah, Asma Shahid, S. A. Bakar, Muhammad Yousaf, Shern-Long Lee","doi":"10.1007/s12596-024-02011-9","DOIUrl":"https://doi.org/10.1007/s12596-024-02011-9","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653416","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 : 2024-07-12DOI: 10.1007/s12596-024-02007-5
H. D. Omar
{"title":"Investigation of light trapping and NiOx anti-reflection layer in ultra-thin crystalline silicon by ray tracer","authors":"H. D. Omar","doi":"10.1007/s12596-024-02007-5","DOIUrl":"https://doi.org/10.1007/s12596-024-02007-5","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141652545","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 : 2024-07-12DOI: 10.1088/2040-8986/ad6277
Afonso Lamelas, Vitor S Amaral
Vibronic coupling of color centers plays a crucial role in their effectiveness for quantum technologies. This study presents a novel approach to extract key parameters, including the Huang-Rhys factor and the one-phonon coupling function, from photoluminescence spectra containing the signal from multiple color centers. Monotonic splines are used to represent the one-phonon coupling function, optimized using a variable-length non-dominated sorting genetic algorithm. Our method is applied to the combination of the well-studied negatively charged nitrogen-vacancy center and its less explored neutral counterpart in diamond, observed through photoluminescence at 14 K. Despite the complexity inherent in the theoretical framework governing phonon coupling in photoluminescence, we achieve robust fits, yielding a normalized root-mean-squared error of approximately 6 %. The neutral nitrogen-vacancy center exhibits a Huang-Rhys factor of 3.0, while its negatively charged counterpart showcases a value of 3.95. The quasi-localized vibrations of both charge states are clearly present in the fitted one-phonon spectral function. Furthermore, the consistency of our methodology is bolstered by temperature-dependent photoluminescence, which was calculated up to numerical constants using fit-derived parameters, matching the experimental measurements up to 300 K.
{"title":"Extracting phonon coupling parameters from multi color center photoluminescence","authors":"Afonso Lamelas, Vitor S Amaral","doi":"10.1088/2040-8986/ad6277","DOIUrl":"https://doi.org/10.1088/2040-8986/ad6277","url":null,"abstract":"\u0000 Vibronic coupling of color centers plays a crucial role in their effectiveness for quantum technologies. This study presents a novel approach to extract key parameters, including the Huang-Rhys factor and the one-phonon coupling function, from photoluminescence spectra containing the signal from multiple color centers. Monotonic splines are used to represent the one-phonon coupling function, optimized using a variable-length non-dominated sorting genetic algorithm. Our method is applied to the combination of the well-studied negatively charged nitrogen-vacancy center and its less explored neutral counterpart in diamond, observed through photoluminescence at 14 K. Despite the complexity inherent in the theoretical framework governing phonon coupling in photoluminescence, we achieve robust fits, yielding a normalized root-mean-squared error of approximately 6 %. The neutral nitrogen-vacancy center exhibits a Huang-Rhys factor of 3.0, while its negatively charged counterpart showcases a value of 3.95. The quasi-localized vibrations of both charge states are clearly present in the fitted one-phonon spectral function. Furthermore, the consistency of our methodology is bolstered by temperature-dependent photoluminescence, which was calculated up to numerical constants using fit-derived parameters, matching the experimental measurements up to 300 K.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141654452","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 : 2024-07-12DOI: 10.1007/s12596-024-01970-3
Hitesh Kumar Midha, Vivekanand Sharma, N. Kant, V. Thakur
{"title":"Exploring nonlinear effects in terahertz generation with Hermite–Gaussian chirp pulses under static magnetic fields","authors":"Hitesh Kumar Midha, Vivekanand Sharma, N. Kant, V. Thakur","doi":"10.1007/s12596-024-01970-3","DOIUrl":"https://doi.org/10.1007/s12596-024-01970-3","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141652289","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 : 2024-07-12DOI: 10.1007/s12596-024-01945-4
Suganthi Santhanam, T. Krishna Mari Selvi
{"title":"MIMO–OFDM based optical millimeter wave generation for radio over fiber wireless communication systems","authors":"Suganthi Santhanam, T. Krishna Mari Selvi","doi":"10.1007/s12596-024-01945-4","DOIUrl":"https://doi.org/10.1007/s12596-024-01945-4","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653526","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 : 2024-07-11DOI: 10.1007/s12596-024-02020-8
Saad Kh. Rahi, Farouk Kh. Shakir, Bahaa J. Alwan
{"title":"Effect of Changing the Time Delay on Absorption Coefficient of (rhodamine 6G) Dye Utilizing Laser Probe Technique","authors":"Saad Kh. Rahi, Farouk Kh. Shakir, Bahaa J. Alwan","doi":"10.1007/s12596-024-02020-8","DOIUrl":"https://doi.org/10.1007/s12596-024-02020-8","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141656600","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 : 2024-07-11DOI: 10.1007/s12596-024-01981-0
Deepak Sahu, C. Kumar, Ghanendra Kumar
{"title":"Achieve the acceptable parameters for super dense optical communication system using HOAs","authors":"Deepak Sahu, C. Kumar, Ghanendra Kumar","doi":"10.1007/s12596-024-01981-0","DOIUrl":"https://doi.org/10.1007/s12596-024-01981-0","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141657732","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}
Spinning thermal radiation refers to the phenomenon of selective emission of circularly polarized waves from chiral structures with polarization dependence or symmetry breaking. This phenomenon finds diverse applications in fields such as radiation detection and chiral sensing. In this study, we introduce a dielectric metasurface composed of a periodic arrangement of Germanium (Ge) elliptical disks, which can exhibit circular dichroism (CD) with a maximum value of approximately 0.93 at the optimal structural parameters. The physical mechanism of the strong CD is analyzed through the polarization conversion and distributions of the electric field. Moreover, the influence of structural parameters on the spinning thermal radiation is also analyzed. It is found that the CD is closely related to the height and period of the Ge-based chiral dielectric metasurface rather than the rotation angle. This work not only provides valuable insights into the design and optimization of spinning thermal radiation using metasurfaces, but also holds promise for its engineering applications in the field of thermal detection.
旋转热辐射是指具有偏振依赖性或对称性破缺的手性结构选择性发射圆偏振波的现象。这种现象在辐射探测和手性传感等领域有着广泛的应用。在本研究中，我们介绍了一种介电元表面，它由周期性排列的锗（Ge）椭圆盘组成，在最佳结构参数下可表现出最大值约为 0.93 的圆二色性（CD）。通过极化转换和电场分布分析了强 CD 的物理机制。此外，还分析了结构参数对旋转热辐射的影响。研究发现，CD 与 Ge 基手性介电元表面的高度和周期密切相关，而与旋转角度无关。这项工作不仅为利用元表面设计和优化旋转热辐射提供了宝贵的见解，还为其在热探测领域的工程应用带来了希望。
{"title":"Strong spinning thermal radiation enabled by Germanium-based chiral dielectric metasurface","authors":"Xu Guo, Biyuan Wu, Hongju Li, Haotuo Liu, Xiaohu Wu, Ying Gao","doi":"10.1088/2040-8986/ad61fc","DOIUrl":"https://doi.org/10.1088/2040-8986/ad61fc","url":null,"abstract":"\u0000 Spinning thermal radiation refers to the phenomenon of selective emission of circularly polarized waves from chiral structures with polarization dependence or symmetry breaking. This phenomenon finds diverse applications in fields such as radiation detection and chiral sensing. In this study, we introduce a dielectric metasurface composed of a periodic arrangement of Germanium (Ge) elliptical disks, which can exhibit circular dichroism (CD) with a maximum value of approximately 0.93 at the optimal structural parameters. The physical mechanism of the strong CD is analyzed through the polarization conversion and distributions of the electric field. Moreover, the influence of structural parameters on the spinning thermal radiation is also analyzed. It is found that the CD is closely related to the height and period of the Ge-based chiral dielectric metasurface rather than the rotation angle. This work not only provides valuable insights into the design and optimization of spinning thermal radiation using metasurfaces, but also holds promise for its engineering applications in the field of thermal detection.","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141658319","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 : 2024-07-11DOI: 10.1007/s12596-024-02036-0
Kawthar Shurrab, M. S. El-daher
{"title":"Designing and simulating fiber arrangement in the probe of elastic scattering signal to be more efficient","authors":"Kawthar Shurrab, M. S. El-daher","doi":"10.1007/s12596-024-02036-0","DOIUrl":"https://doi.org/10.1007/s12596-024-02036-0","url":null,"abstract":"","PeriodicalId":509797,"journal":{"name":"Journal of Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141658611","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}
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