Optics Communications最新文献

{"title":"Time-delay reservoir computing based on VCSEL for short-term load forecasting","authors":"Ling Zheng ,&nbsp;Pan Zhang ,&nbsp;Xinrui Hu ,&nbsp;Xingxing Guo ,&nbsp;Yahui Zhang ,&nbsp;Licun Yu ,&nbsp;Shuiying Xiang","doi":"10.1016/j.optcom.2025.131838","DOIUrl":"10.1016/j.optcom.2025.131838","url":null,"abstract":"<div><div>It is essential for the effective functioning of the power system to guarantee an adequate electricity supply while reducing unnecessary generation. This research presents time delay reservoir computing (TD-RC) system that employs a vertical cavity surface emitting laser (VCSEL) for short-term load forecasting(STLF). The model employs a sliding window of variable length for both its inputs and outputs, using VCSEL as nonlinear node in the reservoir to enhance the model’s nonlinear dynamic characteristics. Additionally, Ridge Regression is employed as a post-processing method to predict power load. The study also investigates the impact of parameters on the performance of the TD-RC system, and its performance is validated using load datasets from Panama and Johor, Malaysia. Compared with existing models, the TD-RC model reduces the mean absolute percentage error (MAPE) by 26% to 39% (35% to 50%) and decreases computation time by 45% to 62% (52% to 67%) across both datasets. The results demonstrates that the proposed model offers advantages such as low complexity, fast convergence, and strong nonlinear expression capabilities, enabling accurate load forecasting.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131838"},"PeriodicalIF":2.2,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868660","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}

{"title":"A multifunctional bidirectional metamaterial perfect absorber for efficient narrowband and broadband absorption","authors":"Yuchang Li,&nbsp;Fang Chen,&nbsp;Wenxing Yang","doi":"10.1016/j.optcom.2025.131878","DOIUrl":"10.1016/j.optcom.2025.131878","url":null,"abstract":"<div><div>In this study, we introduce a bidirectional metamaterial perfect absorber capable of achieving both four narrowband and broadband absorption. Unlike conventional single-band metamaterial perfect absorbers, our proposed design enables switching between four distinct narrowband and broadband absorption modes. The absorber consists of several layers of planar structures, with the top layer featuring a grating structure. When illuminated from above, the absorber exhibits four absorption peaks at wavelengths of 575.7 nm, 625.1 nm, 929.5 nm, and 1667.4 nm, corresponding to absorption rates of 99.66 %, 99.82 %, 99.85 %, and 92.21 %, respectively. We validate our design through finite-difference time-domain (FDTD) simulations and coupled mode theory (CMT) fitting, finding excellent agreement between the two methods. The observed narrowband perfect absorption arises from the synergistic effects of local surface plasmon resonance (LSPR), gap resonance, and Fabry-Perot (F–P) cavity resonance. Furthermore, our analysis reveals that the structural sensitivity is notably high. Employing the CIE (International Photometric Commission) color model, we convert the reflected spectra in the visible range into color estimation values, thereby enhancing the aesthetic appeal of the structure. We observe that varying the grating thickness results in a spectrum of rich colors. Notably, when electromagnetic waves are incident from the back of the device, it demonstrates an exceptionally wide absorption bandwidth of 1634.2 nm, with an average absorption rate of 98.54 %. Electromagnetic field analysis attributes this efficient broadband absorption to F–P cavity resonance. Remarkably, within a certain manufacturing tolerance range, the absorber retains its broadband absorption characteristics. Under the AM 1.5 solar radiation spectrum, the energy absorption rate reaches 95.98 %, while at a temperature of 1800 K, the absorber exhibits a high thermal emissivity of 98.67 %. Additionally, the narrowband absorption is polarization-dependent, whereas the broadband absorption is polarization-independent. Given these attributes, the proposed bidirectional absorber holds significant promise for applications in sensing, detection, photovoltaic power generation, and solar thermal energy conversion.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131878"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851535","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}

{"title":"Bandgap tuning of RbCaBr3 using hydrostatic pressure: First-principles insight to explore its electronic, physical, thermophysical, and mechanical properties","authors":"Pobitra Barman ,&nbsp;Avijit Ghosh ,&nbsp;Agnita Sikder Mugdho ,&nbsp;Aijaz Rasool Chaudhry","doi":"10.1016/j.optcom.2025.131899","DOIUrl":"10.1016/j.optcom.2025.131899","url":null,"abstract":"<div><div>Halide perovskites are a very important class of material in solar cell fabrication. In this study, the properties of lead-free halide perovskite RbCaBr₃ explored under hydrostatic pressure 0–120 GPa. To study the characteristics of the RbCaBr₃ perovskite solar cell, first-principles density functional theory (FP-DFT) simulations with the Cambridge Serial Total Energy Package (CASTEP) formulation were used. At 40 GPa pressure, the materials show a direct bandgap at the Gamma point while 0 GPa shows an indirect bandgap. As the pressure increases, the bandgap varies from 4.22 eV to 0.227 eV. Mulliken population analysis and density of states curves have been used to investigate the bonding nature. These parameters indicate the presence of ionic bonding. Pressure increases certain thermophysical parameters, such as the melting and Debye temperatures. According to the Born-Huang criterion, the mechanical stability of RbCaBr₃ has been confirmed. The values of Cauchy's pressure, Pugh's ratio, and Poisson's ratio indicate the ductile nature of RbCaBr₃. The computed elastic parameters suggest reasonably high machinability and isotropic behavior, which are important for practical applications in various fields. Based on its large range of direct bandgap, stability, and other properties, RbCaBr₃ is a potential material for optoelectronics and solar cell research.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131899"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873336","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}

{"title":"Dynamic multiband compatible stealth and thermal management metasurface based on phase-change material","authors":"Jianghan Du,&nbsp;Boshi Wang,&nbsp;Yue Liu,&nbsp;Mengdan Qian,&nbsp;Yufang Liu,&nbsp;Kun Yu","doi":"10.1016/j.optcom.2025.131900","DOIUrl":"10.1016/j.optcom.2025.131900","url":null,"abstract":"<div><div>Infrared stealth plays key roles in the domain of information countermeasures. Given the complexity of contemporary information countermeasures, stealth technology focused on a single band region can scarcely meet the practical requirements. Consequently, developing multi-band counter-detection techniques and ensuring compatibility with various related functionalities have become highly valuable research pursuits. Phase-change material metasurfaces, as innovative and highly flexible materials, can significantly enhance the compatibility of diverse requirements and enable numerous potential applications in practical scenarios. This paper presents a metasurface selective emitter (MSE) based on the phase-change material Ge₂Sb₂Te₅ (GST), designed to simultaneously achieve dynamic multi-band compatible stealth as well as radiative cooling functions. The MSE consists of a metallic double-periodic array microstructure, a GST/ZnS/Ge multilayer film, and a metallic reflective bottom layer, enabling tunable stealth across infrared and laser bands while supporting radiative cooling. Compared to most existing studies, this research ensures the stable effectiveness of infrared stealth and radiative cooling functionalities both before and after the GST phase transition. As the GST crystallinity percentage increases from 0 % to 100 %, the metasurface shows a 36 % enhancement in radiative cooling efficiency and the emissivity achieves 0.71 within non-atmospheric window region, while maintaining low emissivity value of 0.27 in the detectable band. Concurrently, it offers a tailored method for assessing the crystallization ratio of GST during intermediate phase states. The proposed MSE exhibits polarization independence and maintains effectiveness at large angles, enhancing its adaptability and reliability in practical applications. This work offers an efficient design approach for the application of GST metasurfaces under various phase-change conditions in applications involving multi-band stealth and radiative cooling compatibility.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131900"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855712","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}

{"title":"Accelerating the Raman spectroscopic discrimination of normal and cancerous tissues with low-rank constraint","authors":"Lang Huang ,&nbsp;Xinhang Lou ,&nbsp;Huijie Wang ,&nbsp;Xu Liu ,&nbsp;Suwei Zhou ,&nbsp;Jinjin Wu ,&nbsp;Linwei Shang ,&nbsp;Jianhua Yin","doi":"10.1016/j.optcom.2025.131842","DOIUrl":"10.1016/j.optcom.2025.131842","url":null,"abstract":"<div><div>Raman spectroscopic detection has been extensively validated as a potentially powerful analytical tool for high-efficiency cancer diagnosis. However, Raman scattering is inherently weak, and consequently Raman signal differences between normal and cancerous tissues are easily submerged in the random detecting noise. In order to improve the signal-to-noise ratio, Raman spectral acquisition is generally performed with a relatively long integration time, which strongly hinders the rapid discrimination of normal and cancerous tissues and probably photodamages the tissues under the long-time laser irradiation. In this work, spectral denoising based on low-rank constraint has been investigated and compared with the classical Savitzky–Golay smoothing and wavelet-transform denoising, demonstrating better performance in terms of spectral quality and tissue discrimination as well as simplicity of parameter selection. Specifically, Raman spectra of normal and osteosarcoma tissues were captured with the micro-Raman spectral system, and then classified using the unsupervised K-means clustering. As a result, the spectral classification following the low-rank denoising can remain accurate, even when shortening the integration time by more than 2 orders of magnitude, i.e. from 120 s to 1 s. With the help of low-rank SNR enhancement, Raman spectroscopic detection can be significantly accelerated, presumably promoting the application of Raman imaging to characterize the tissue heterogeneity for more accurate cancer diagnosis.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131842"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847746","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}

{"title":"Metasurface based on VO2-Ge2Sb2Te5 with multi-modes: cross-polarization conversion, reversible linear dichroism and absorption","authors":"Xinhui Lu,&nbsp;Lei Yang,&nbsp;Weiyi Peng,&nbsp;Xiaohui Yang","doi":"10.1016/j.optcom.2025.131895","DOIUrl":"10.1016/j.optcom.2025.131895","url":null,"abstract":"<div><div>To address the limitations of conventional metasurfaces, including single-function operation, structural complexity, and narrow application scope, we propose a VO₂-Ge₂Sb₂Te₅ (GST225)-based multifunctional switchable terahertz metasurface. By utilizing the unique properties of the two phase-change materials (PCMs) and controlling their phase transitions, the metasurface dynamically switches between three functional modes: cross-polarization conversion, reversible linear dichroism (LD), and absorption. The polarization conversion mode achieves over 90% efficiency in the 2.52–3.92 THz range and exhibits incident polarization insensitivity. The reversible LD mode enables switching between dichroism values of +0.956 and −0.959 at 1.57 THz through actively controlled PCMs. The absorption mode demonstrates broadband performance, maintaining over 60% absorption rate across a 4 THz bandwidth and exhibiting dual-peak spectral characteristics. Leveraging these operational modes, we introduce three distinct encryption schemes. The proposed metasurface serves as a versatile integration platform, offering potential applications in polarization detection and image encryption.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131895"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859714","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}

{"title":"Temperature-insensitive parallel dual FPI strain sensor based on the vernier effect","authors":"Wei Li ,&nbsp;Jingwei Lv ,&nbsp;Xili Lu ,&nbsp;Chao Liu ,&nbsp;Renfeng Li ,&nbsp;Liangliang Li ,&nbsp;Weijie Kong ,&nbsp;Qiang Liu ,&nbsp;Jianing Shi ,&nbsp;Wei Liu ,&nbsp;Pan Meng ,&nbsp;Xinrui Guo ,&nbsp;Paul K. Chu","doi":"10.1016/j.optcom.2025.131871","DOIUrl":"10.1016/j.optcom.2025.131871","url":null,"abstract":"<div><div>A temperature-insensitive Fabry-Pérot interferometer (FPI) based on the Vernier effect is proposed for strain measurement. Two structurally similar FPIs are prepared with a fusion splicer, and the air cavity in the middle forms the Fabry-Pérot cavity. The one FPI with a thinner wall serves as the sensing cavity, and the other is the reference cavity. The strain sensitivity of the optical fiber sensor for 0–600 με is 131.7 pm/με, which is 9 times higher than that of the single structure FPI. It has a temperature sensitivity of 2.7 pm/°C and a temperature cross-sensitivity of 0.021 με/°C in the temperature range between 25 and 200 °C. The sensor has excellent repeatability and stability in strain measurements. The results show that the strain sensor is simple, cost-effective, and easy to fabricate. In conjunction with its high sensitivity, it has great commercial potential in strain measurements, especially in complex temperature environments.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131871"},"PeriodicalIF":2.2,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859713","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}

{"title":"Ultralow-loss electro-absorption modulator based on bound-state-in-continuum waveguides","authors":"Jiantao He ,&nbsp;Meng Kang ,&nbsp;Quanbing Guo ,&nbsp;Hongxing Xu","doi":"10.1016/j.optcom.2025.131892","DOIUrl":"10.1016/j.optcom.2025.131892","url":null,"abstract":"<div><div>Electrically controlled information encoding plays an indispensable role in modern optical communications networks. Electro-absorption modulator, one of the extensively studied elements, generally inevitably suffers from a remarkable insertion loss. Here, we elaborately design an electro-absorption modulator with an ultralow insertion loss down to 0.00593 dB/μm, through engineering the photonic waveguide decoupling from the slab continuum modes. Meanwhile, by leveraging the epsilon-near-zero effect of indium tin oxide (ITO), the modulator achieves an extinction ratio of 1.015 dB/μm in the optimized framework. The simulations indicate that the extinction mainly originates from the enhanced absorption of ITO at the epsilon-near-zero state, and only about 11.66 % is from the damaged bound state due to voltage-induced refractivity change. Moreover, the modulator features a broad working bandwidth of hundreds of nanometers, and the extinction ratio can be further improved in the short-wavelength region. Therefore, our results provide a novel strategy to reduce the propagation loss in optoelectronics and lay the foundation for the design of high-performance integrated telecommunication circuits.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131892"},"PeriodicalIF":2.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859709","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}

{"title":"Accurate THz measurements of permittivity and permeability of BiFeO3 thin films","authors":"Gian Paolo Papari ,&nbsp;Zahra Mazaheri ,&nbsp;Francesca Lo Presti ,&nbsp;Graziella Malandrino ,&nbsp;Antonello Andreone","doi":"10.1016/j.optcom.2025.131872","DOIUrl":"10.1016/j.optcom.2025.131872","url":null,"abstract":"<div><div>The electrodynamic properties of BiFeO₃ films in the THz region are investigated via time domain spectroscopy. Combining the use of transmission (<span><math><mrow><mover><mi>T</mi><mo>˜</mo></mover></mrow></math></span>) and reflection (<span><math><mrow><mover><mi>R</mi><mo>˜</mo></mover></mrow></math></span>) measurements under normal incidence, the refractive index and impedance of the samples under test are evaluated using a retrieval method. From <span><math><mrow><mover><mi>T</mi><mo>˜</mo></mover></mrow></math></span> (<span><math><mrow><mover><mi>R</mi><mo>˜</mo></mover></mrow></math></span>) data two complex functions describing the refractive index <span><math><mrow><msub><mover><mi>n</mi><mo>˜</mo></mover><mi>T</mi></msub></mrow></math></span> (<span><math><mrow><msub><mover><mi>n</mi><mo>˜</mo></mover><mi>R</mi></msub></mrow></math></span>) and impedance <span><math><mrow><msub><mover><mi>z</mi><mo>˜</mo></mover><mi>T</mi></msub></mrow></math></span> (<span><math><mrow><msub><mover><mi>z</mi><mo>˜</mo></mover><mi>R</mi></msub></mrow></math></span>) are extracted from the independent minimization of the error functions given by the difference between the theoretical model and measurements. Knowledge of the pairs (<span><math><mrow><msub><mover><mi>n</mi><mo>˜</mo></mover><mi>T</mi></msub></mrow></math></span>, <span><math><mrow><msub><mover><mi>n</mi><mo>˜</mo></mover><mi>R</mi></msub><mo>)</mo></mrow></math></span> and (<span><math><mrow><msub><mover><mi>z</mi><mo>˜</mo></mover><mi>T</mi></msub></mrow></math></span>, <span><math><mrow><msub><mover><mi>z</mi><mo>˜</mo></mover><mi>R</mi></msub><mo>)</mo></mrow></math></span> enables to calculate with a high accuracy both complex permittivity <span><math><mrow><mover><mi>ε</mi><mo>˜</mo></mover></mrow></math></span> and permeability <span><math><mrow><mover><mi>μ</mi><mo>˜</mo></mover></mrow></math></span> of the sample. Signatures of magnetoelectric effects and phononic resonances are observed in the permittivity and permeability functions and discussed in detail.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131872"},"PeriodicalIF":2.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850394","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}

{"title":"Unveiling pressure-driven modulations in Ca3NBr3: Insights into physical properties and solar cell performance","authors":"Md Azizur Rahman ,&nbsp;Avijit Ghosh ,&nbsp;R. Jothi Ramalingam ,&nbsp;Noureddine Elboughdiri ,&nbsp;Amnah Mohammed Alsuhaibani ,&nbsp;Q. Mohsen ,&nbsp;Moamen S. Refat ,&nbsp;Imtiaz Ahamed Apon","doi":"10.1016/j.optcom.2025.131873","DOIUrl":"10.1016/j.optcom.2025.131873","url":null,"abstract":"<div><div>This study employs first-principles calculations using Quantum Espresso to investigate the structural, thermodynamic, electrical, mechanical, and optical properties of the halide-based perovskite Ca₃NBr₃ under varying pressures (−6 % to +6 %). Additionally, SCAPS-1D simulations were conducted to evaluate its solar cell performance. This comprehensive approach provides insights into the material's potential for photovoltaic applications and its behavior under mechanical stress, advancing our understanding of halide-based perovskites. The final enthalpy and elastic constants confirmed the thermodynamic and mechanical stability of Ca₃NBr₃, indicating its ductile nature. Without biaxial pressure, Ca₃NBr₃ maintains a semiconductor bandgap of 1.128 eV. Under compressive strain (−6 %), the bandgap narrows to 0.998 eV, causing a redshift in the absorption peaks. Conversely, tensile strain (+6 %) widens the bandgap to 1.315 eV, resulting in a blueshift. Additionally, as pressure increases from tensile to compressive, there is a rise in elastic constants, average sound velocity, bulk modulus, shear modulus, ductility, Pugh's ratio, Poisson's ratio, anisotropy, Young's modulus, and Elastic Debye temperature. Furthermore, the optical absorption, Loss function, both the imaginary and real components of the dielectric functions, conductivity, and refractive index, and reflectivity, for cubic perovskite Ca₃NBr₃ were analyzed in detail under pressures ranging from −6 % to +6 %. Increased pressure caused the compound to transition to a conductor and improve its absorption capabilities in the 4–20 eV range, making it suitable for UV spectrum applications. A new solar cell device featuring a Ca₃NBr₃ absorber layer and WS₂ electron transport layer achieved a maximum power conversion efficiency (PCE) of 30.82 %, with a V_OC of 0.894 V, a J_SC of 41.81 mA/cm², and a fill factor (FF) of 82.46 %. Additionally, the effects of temperature and realistic resistances on the Ca₃NBr₃ materials were calculated. The findings position Ca₃NBr₃ as a promising candidate for advanced optoelectronic applications, including UV absorbers and high-performance solar cells.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"585 ","pages":"Article 131873"},"PeriodicalIF":2.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143854623","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}