Photonics and Nanostructures-Fundamentals and Applications最新文献

{"title":"Deep learning-enabled sparse-data reconstruction of plasmonic scattering spectra","authors":"Mohamed El Ghafiani,&nbsp;Madiha Amrani,&nbsp;El Houssaine El Boudouti,&nbsp;Adnane Noual","doi":"10.1016/j.photonics.2026.101615","DOIUrl":"10.1016/j.photonics.2026.101615","url":null,"abstract":"<div><div>Reconstructing scattering spectra from limited spectral measurements is a recurring need for plasmonic nanostructures, both in numerical workflows where full-wave simulations are computationally expensive and in experimental settings where broadband scans can be slow, bandwidth-limited, or sparsely sampled. We address this problem with a supervised deep learning framework targeted at gold nanoridge dimer-on-mirror structures. Two complementary masking schemes are studied: a contiguous spectral window, which forces the model to extrapolate beyond the observed region, and a random sparse mask, which reduces the task to interpolation between scattered observations. Three architectures with different inductive biases are compared on a dataset of 1307 COMSOL-simulated scattering spectra: a multilayer perceptron (MLP), a one-dimensional convolutional neural network (CNN) with dilated kernels, and a one-dimensional U-Net, a U-shaped encoder–decoder network with skip connections. We find that no architecture is universally optimal. Under contiguous masking, the MLP outperforms both convolutional models, with <span><math><mrow><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>≈</mo><mn>0.98</mn></mrow></math></span> from only one third of the spectral range, because its dense connectivity provides a global receptive field suited to long-range extrapolation. Under random sparse masking, all three architectures reach <span><math><mrow><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>≥</mo><mn>0.989</mn></mrow></math></span>, but the CNN matches the larger U-Net while using roughly five times fewer parameters. A bandwidth ablation in the contiguous case shows that one third of the spectral range is sufficient for high-fidelity reconstruction, with diminishing returns beyond about 40% visibility, and a visibility ablation in the random case shows that 25%–30% of the spectral points is sufficient for reliable reconstruction. Classical interpolation, Gaussian-process, and linear baselines confirm that the networks are most valuable at low visibility and for contiguous-window extrapolation, also a noise and disorder analysis shows that the random-sparse reconstruction tolerates realistic fabrication variations The architecture-task coupling identified here gives a concrete design rule for sparse spectral acquisition and neural post-processing pipelines in nanophotonics.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101615"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148642752","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":"Nonlinear optical bistability in parity-time symmetric one-dimensional photonic multilayers incorporating a highly nonlinear perovskite thin film","authors":"Ren-Jie Wu","doi":"10.1016/j.photonics.2026.101627","DOIUrl":"10.1016/j.photonics.2026.101627","url":null,"abstract":"<div><div>In this study, a one-dimensional photonic multilayer combining parity-time (PT) symmetry and the Thue-Morse sequence, with a highly nonlinear perovskite thin film inserted at its central region, is proposed to achieve nonlinear optical bistability. By numerically solving the theoretical model via the transfer matrix method, the results indicate that the response of optical bistability is highly sensitive to system parameters, including the thickness of each dielectric layer, the nonlinear Kerr coefficient of the perovskite layer, the incident angle, and the wavelength of the input light. When the incident wavelength is tuned over the 532–552 nm spectral range, the first S-shaped bistable hysteresis loop attains its minimum width of 0.0022 GW/m² at 532 nm, whereas a maximum on/off ratio of 3.75 dB is realized at the operating wavelength of 541 nm. As the incident angle increases from 0° to 70°, substantial changes in both the bistable loop width and the associated on/off ratio are observed for TE and TM polarizations alike. The results demonstrate that the optical bistability with flexibly controllable width and greatly reduced switching threshold can be achieved by properly adjusting the corresponding parameters.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101627"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148843894","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":"Propagation depth as an optical key: A finite-library holographic metalens for crosstalk-suppressed multi-plane reconstruction","authors":"Zhixuan Yang,&nbsp;Lingbao Kong,&nbsp;Qiyuan Wang","doi":"10.1016/j.photonics.2026.101631","DOIUrl":"10.1016/j.photonics.2026.101631","url":null,"abstract":"<div><div>Depth-multiplexed metasurface holograms reconstruct different optical payloads at different propagation planes under single-wavelength illumination. However, many demonstrations rely on idealized continuous phase profiles, leaving insufficiently quantified whether depth selectivity can be preserved after implementation with a finite, fabricable meta-atom library. Here, we develop a finite-library-constrained numerical design and evaluation workflow for a TiO₂ nanopillar holographic metalens operating at 532 nm. The workflow explicitly connects continuous multi-plane phase optimization, direct projection onto a 12-state FDTD-calibrated nanopillar library, and re-optimization under the same finite-library constraint. Correct-plane fidelity, wrong-plane crosstalk, axial selectivity, incident-power-normalized energy budget, fabrication tolerance, multiplexing capacity, and the validity of the local-periodic approximation are evaluated. The optimized four-channel device achieves correct-plane correlations of 0.84–0.86 while keeping all wrong-plane correlations at or below zero. It also reaches a mean incident-power-normalized ROI efficiency of 33.8%, with values ranging from 31.0% to 36.4% across the four reconstruction planes. Direct finite-library projection yields a mean correlation of 0.841, whereas the subsequent re-optimization increases it to 0.846 and reduces the inter-channel correlation range from 0.020 to 0.013, indicating that its primary role is to balance reconstruction quality among the four axial channels. Compared with a library-aware multi-plane Gerchberg–Saxton baseline that projects onto the same finite library at every iteration, the proposed route improves the mean correlation by 0.127 and maintains stronger wrong-plane suppression. A twelve-patch full-wave cross-check spanning low-, medium-, and high-gradient regions and aperture-edge positions gives a mean complex-field correlation of 0.86 ± 0.05 with the local-periodic model, while channel-count and depth-configuration tests identify four channels as the practical capacity of the present geometry. These results provide a numerically validated route for translating continuous multi-plane hologram designs into finite-library metasurface implementations while preserving depth-selective reconstruction and balanced channel performance.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101631"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148843809","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":"Spontaneous emission of circularly polarized radiation in a chiral cavity","authors":"A. Alessandrini,&nbsp;S. Pal,&nbsp;L. di Mauro Villari,&nbsp;L. Assogna,&nbsp;M. Silvestri,&nbsp;M. Venturi,&nbsp;D. Tedeschi,&nbsp;C. Ferrante,&nbsp;A. Marini","doi":"10.1016/j.photonics.2026.101635","DOIUrl":"10.1016/j.photonics.2026.101635","url":null,"abstract":"<div><div>Engineering the helicity of single photons is a central challenge in nanophotonics and quantum optics, with applications ranging from chiral light–matter interactions to quantum communication protocols. We investigate the effects produced by a chiral cavity consisting of two twisted anisotropic photonic crystal mirrors on the spontaneous emission of a quantum system. For a given vacuum wavelength, the considered mirrors can be engineered to concurrently exhibit high helicity-preserving reflectance for one circular polarization and high transmittance for the opposite one, for incidence angles up to 20° with respect to the optical axis. Considering an atomic two-level system within the cavity, we evaluate the total dyadic Green function, taking into account both inhomogeneous and scattering electromagnetic contributions. We demonstrate that optimal configurations can achieve a 3% imbalance between the far-field emission rates (emissivities) of right- and left-circularly polarized light when averaged over random dipole orientations. Remarkably, this imbalance increases to 20% under suitably tuned dipole orientations. Throughout, the reported quantities are the partial emission rates into the far-field radiative channels, i.e., the emission restricted to the vacuum light cone. The sub-light-line guided-mode channel supported by the lossless dielectric stacks is a separate decay channel and is not included in them. Even larger values are expected for coherently radiating two-dimensional arrays of such dipoles that isolate the normal component of the emitted field, while the remaining contributions interfere destructively. We envision that the proposed system will expand the set of tools available for investigating chiral matter and support the development of compact sub-micrometer circularly polarized single-photon sources.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101635"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148934395","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}

{"title":"Optical response of layered photonic crystals using rigorous coupled-wave analysis 4D","authors":"Hyundong Kim,&nbsp;Gil-Woo Lee,&nbsp;You-Shin No","doi":"10.1016/j.photonics.2026.101632","DOIUrl":"10.1016/j.photonics.2026.101632","url":null,"abstract":"<div><div>Rigorous coupled-wave analysis 4D (RCWA4D) is an extension of conventional RCWA for calculating the optical response of photonic structures. RCWA4D can be effective for analyzing optical properties of complex multilayer systems. To illustrate it, we present the spectral response of photonic crystal slabs, ranging from untwisted periodic structures to twisted slabs with commensurate and incommensurate twist angles. Representative examples include single-layer, bilayer, woodpile, and twisted bilayer photonic crystals (TBPhCs). The results are compared with those obtained from other numerical methods, and their convergence with respect to the Fourier truncation order is also examined. In particular, TBPhCs are considered at incommensurate twist angles. These results suggest that RCWA4D is a practical approach for layered photonic structures and may provide useful guidance for the study of twisted and incommensurate systems.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101632"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148934393","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":"Massive parameter extraction via coupled mode theory for enhanced intelligent metamaterial design","authors":"Chuanyue Yang,&nbsp;Yiou Wang,&nbsp;Zhengwei Deng,&nbsp;Yiqian Sun,&nbsp;Yicheng Li,&nbsp;Shicheng Wan,&nbsp;Wenjia Li,&nbsp;Zheng Zhu,&nbsp;Chunying Guan,&nbsp;Yuxiang Li,&nbsp;Xi Gao,&nbsp;Jinhui Shi","doi":"10.1016/j.photonics.2026.101591","DOIUrl":"10.1016/j.photonics.2026.101591","url":null,"abstract":"<div><div>Metamaterials exhibit a diverse range of capabilities in electromagnetic manipulation. However, designing metamaterial structures for expected functions encounters an inverse problem. The advent of deep learning offers a data-driven approach to address this issue. To enhance the transparency of deep learning models, coupled mode theory (CMT) is incorporated into the design process. Despite this advancement, efficiently extracting coupled mode parameters for neural network training remains a significant challenge. To address this, we propose a simulation-free theory-driven pretraining neural network method for extracting coupled mode parameters. Using these extracted parameters, we perform both forward and inverse design of metamaterials, demonstrating the benefits of integrating CMT into intelligent design. By incorporating CMT, our approach transitions from a purely data-driven model to a \"physics-driven\" one, improving design accuracy. Compared to end-to-end data-driven methods, our CMT-based scheme offers superior design precision. The results, validated by simulation data, highlight that our method bridges the gap between intelligent and interpretable design.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101591"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148544311","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":"Stress driven jet and needle formation on gold films under femtosecond laser irradiation","authors":"Xinyi Zhu,&nbsp;Eduard Ageev,&nbsp;Dmitry Zuev","doi":"10.1016/j.photonics.2026.101586","DOIUrl":"10.1016/j.photonics.2026.101586","url":null,"abstract":"<div><div>Femtosecond laser irradiation of metal thin films can induce complex dynamics, such as protrusion, jetting, and nanoparticle formation. These are governed by both energy deposition and film–substrate mechanical coupling. In this study, we use coupled two-temperature molecular dynamics (TTM-MD) simulations to investigate the nonequilibrium thermomechanical response of a gold thin film in the paraxial region under laterally confined laser excitation. We systematically vary the electron diffusion coefficient, absorption depth, rear-side thermal and mechanical boundary conditions to identify how longitudinal energy deposition, electron-lattice coupling, and stress evolution control jet initiation and stability. Our results show that confined electron diffusion significantly enhances near-surface peak temperatures and transient tensile stresses, leading to stress-dominated local material separation. Implementing a dissipative rear-side boundary that mimics a substrate allows stress waves to be transmitted and attenuated, so that jetting is primarily driven by the release of near-surface nonequilibrium pressure and evolves into stable needles or liquid clusters. Spatiotemporal maps of atomic stress and stress rate reveal how localized mechanical stresses nucleate jets and clusters, thereby providing clear mechanical initial conditions for subsequent surface-tension-driven morphology evolution. This atomic-scale stress-based picture refines our understanding of laser-induced nanostructure formation in metal thin films and supplies physically grounded initial conditions for multiscale jetting models.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101586"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148544772","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":"High-Q quasi-bound states in the continuum and dynamic photon regulation based on silicon dimer nanostructures","authors":"Minghua Wang,&nbsp;Lili Zeng,&nbsp;Zhengzheng Shao,&nbsp;Binwei Guo,&nbsp;Boxun Li,&nbsp;Quanyi Gao,&nbsp;Na Liu","doi":"10.1016/j.photonics.2026.101629","DOIUrl":"10.1016/j.photonics.2026.101629","url":null,"abstract":"<div><div>This paper presents an active tunable optical modulation system based on a silicon and silicon dioxide composite metamaterial surface. By rotating the nanorods, the bound states in the continuum is transformed into quasi-bound states in the continuum with high <em>Q factor</em>, and its magnetic dipole resonance dominant characteristic is confirmed. Further research reveal that bound states in the continuum are robust for geometric shapes, providing flexibility for device design.In particular, by integrating different materials other than silica and the angle of incident light, the broken structural symmetry, by using different refractive indices, produces different couplings, realizes the superposition of bound states in the continuum, thus generating new couplings, and enhances the control of the Goos–Hänchen (GH) shift under specific conditions,shift reaches −1414 <em>λ</em>₀, far exceeding the optical interface.The GH shift occurs when light is fully reflected at the interface. The GH shift effect will cause the wave packet that should return along the original path to shift laterally, and the offset can reach tens to hundreds of nanometers.This study demonstrates a feasible approach to achieving high-performance reconfigurable photonic devices through control of structural symmetry and multi-parameter optimization of materials.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101629"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148843810","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":"Ultraviolet bilayer Ta2O5 Moiré metalens for continuous focal-length tuning and varifocal imaging","authors":"Zexin Yu,&nbsp;Lijian Zhang,&nbsp;Yahao Li,&nbsp;Tianle Wei,&nbsp;Zhenguo Gong,&nbsp;Peng Song,&nbsp;Hao Yang,&nbsp;Shu Li","doi":"10.1016/j.photonics.2026.101624","DOIUrl":"10.1016/j.photonics.2026.101624","url":null,"abstract":"<div><div>Compact ultraviolet varifocal components are highly desirable for miniaturized imaging, optical inspection, and integrated photonic systems. Here, we numerically demonstrate a bilayer Ta₂O₅ Moiré metalens operating at 325 nm that enables continuous focal-length tuning and varifocal imaging. The device comprises two cascaded propagation-phase metasurfaces with complementary rotational phase profiles. Relative in-plane rotation continuously modifies the effective quadratic phase curvature of the bilayer system, allowing the focal length to be tuned without axial displacement or active-material modulation. A polarization-insensitive library of Ta₂O₅ nanopillars with high transmittance and nearly complete <span><math><mrow><mn>2</mn><mi>π</mi></mrow></math></span> phase coverage is employed to realize the designed phase profiles. Cascaded full-wave simulations show that the focal length decreases from 122.25 to <span><math><mrow><mn>29.90</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span> as the relative rotation angle increases from 30° to 120°, while the numerical aperture increases from 0.1218 to 0.4484. The extracted focal lengths differ from the prescribed analytical values by less than 3.1%, while the focal-spot full width at half maximum decreases from 1.49 to <span><math><mrow><mn>0.35</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>. Rotation-controlled imaging of the same binary letter “UV” provides a quantitative proof-of-concept demonstration of on-axis image-scale variation, with the relative image scale varying from 1.00<span><math><mo>×</mo></math></span> to 1.60<span><math><mo>×</mo></math></span>. These results provide a compact and mechanically simple route toward ultraviolet varifocal meta-optics for miniaturized imaging, optical inspection, and integrated photonic systems.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101624"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148843972","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 Fermi level regulation in graphene for deformation self-compensation in metamaterial absorbers","authors":"Juan Wang,&nbsp;Hui Zhang,&nbsp;Changming Liu,&nbsp;Yingkai Liu,&nbsp;Yanyang He,&nbsp;Zhe Chen","doi":"10.1016/j.photonics.2026.101641","DOIUrl":"10.1016/j.photonics.2026.101641","url":null,"abstract":"<div><div>Flexible terahertz absorbers used in radar radomes and aircraft skins are often mounted on curved surfaces, making them susceptible to in-plane (stretching or compression), bending, and twist deformations. These deformations alter the periodic structure, severely degrading performance. Since deformations may vary during operation, developing an adjustable compensation method is practically significant. Focusing on in-plane deformation, we demonstrate an electrical compensation strategy using a three-layer patterned graphene broadband terahertz absorber, based on tuning the graphene Fermi level. In its undeformed state, the absorber provides &gt; 90% absorption over 3.30–7.07 THz (a 72.7% relative bandwidth), with polarization insensitivity and wide-angle tolerance. In-plane deformation along <em>x</em> or <em>y</em> shifts the absorption spectrum systematically. Analysis of electric field and current distributions reveals disrupted resonance coupling. By dynamically modulating the Fermi levels of the three graphene layers, the original absorption bandwidth is fully recovered under various deformations. Furthermore, independent transverse electric (TE) and transverse magnetic (TM) compensation strategies are integrated into a unified polarization-independent cooperative regulation mechanism, greatly enhancing deformation tolerance for signals with unpredictable polarization. This work offers a practical design approach and theoretical basis to overcome deformation-induced detuning in flexible terahertz absorbers.</div></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"72 ","pages":"Article 101641"},"PeriodicalIF":3.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149043702","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}