Laser & Photonics Reviews最新文献

{"title":"Fiber Tip Empowered by Axial-Asymmetric Four-Sector Nanostructure for Broad-Angle Light Coupling","authors":"Jianwei Wang, Oleh Yermakov, Yitong Gu, Matthias Zeisberger, Bennet Fischer, Fei Yu, Chunlei Yu, Lili Hu, Markus A. Schmidt, Ning Wang","doi":"10.1002/lpor.202400688","DOIUrl":"https://doi.org/10.1002/lpor.202400688","url":null,"abstract":"Efficient light coupling into the fiber waveguides is important in numerous applications, while the low in-coupling coefficients of commercially available step-index fibers significantly narrow their application domains. It is recently introduced that well-defined periodic nanostructures, such as annulus gratings, allow to substantially boost in-coupling coefficients. In this study, the genetic algorithm is applied for the optimization of trapezoidal polymer gratings. The experimental data showcase multiply enhanced light coupling at preselected incident angles with respect to a bare fiber. As a breakthrough result, the development of an axial-asymmetric four-sector grating, reaching the percentage level of light coupling efficiency in a broad angular range from 0<span data-altimg=\"/cms/asset/cbd12427-dadb-4ac9-bfa3-d95d3ad30346/lpor202400688-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"2\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202400688-math-0001.png\"><mjx-semantics><mjx-msup data-semantic-children=\"0,1\" data-semantic- data-semantic-role=\"unknown\" data-semantic-speech=\"Superscript ring\" data-semantic-type=\"superscript\"><mjx-mrow data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"empty\"></mjx-mrow><mjx-script style=\"vertical-align: 0.363em;\"><mjx-mo data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\" size=\"s\"><mjx-c></mjx-c></mjx-mo></mjx-script></mjx-msup></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor202400688:lpor202400688-math-0001\" display=\"inline\" location=\"graphic/lpor202400688-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><msup data-semantic-=\"\" data-semantic-children=\"0,1\" data-semantic-role=\"unknown\" data-semantic-speech=\"Superscript ring\" data-semantic-type=\"superscript\"><mrow data-semantic-=\"\" data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"empty\"></mrow><mo data-semantic-=\"\" data-semantic-parent=\"2\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\">∘</mo></msup>$^{circ }$</annotation></semantics></math></mjx-assistive-mml></mjx-container> to 70<span data-altimg=\"/cms/asset/10466ba7-5e9b-40da-8461-34270d434407/lpor202400688-math-0002.png\"></span><mjx-container ctxtmenu_counter=\"3\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202400688-math-0002.png\"><mjx-semantics><mjx-msup data-semantic-children=\"0,1\" data-semantic- data-semantic-role=\"unknown\" data-semantic-speech=\"Superscript ring\" data-semantic-type=\"superscript\"><mjx-mrow data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"empty\"></m","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"79 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Flow-Based Electromagnetic Information Recovery for Inaccessible Area and Low-Resolution Detection","authors":"Guangfeng You, Chao Qian, Shurun Tan, Longwei Tian, Ouling Wu, Guangming He, Hongsheng Chen","doi":"10.1002/lpor.202401199","DOIUrl":"https://doi.org/10.1002/lpor.202401199","url":null,"abstract":"Metasurfaces are widely applied in various applications, such as none-line-of-sight detection, radar imaging enhancement, and non-invasive monitoring. However, electromagnetic (EM) information recovery in inaccessible and occluded areas is of great importance to obtain complete EM picture, albeit challenging. Conventional methods to this end typically necessitate specific prior knowledge and suffer from performance degradation due to implicit computation mechanism. Here a flow-based framework is proposed to facilitate the explicit computation of conditional distribution between the partially accessible EM field and complete EM field. The adjacent distributions in a hierarchical architecture exhibit similarity and seamless convertibility between each other, facilitating a smooth transition without performance degradation. The method is benchmarked through two typical scenarios, i.e., resolution enhancement and field recovery in randomly occluded areas. Even in an entirely unseen scene, the EM information recovery maintains consistence with the ground truth, with maximum error below 10%. The work provides a key advance for EM information recovery in complex real-world environment, offering fresh insights on information access and detection even in extreme cases.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"23 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Photon‐Efficient, Hybrid Illumination for High‐Throughput Fourier Ptychographic Phase Microscopy Using Lenslet‐Integrated LED Illuminator","authors":"Malith Ranathunga, Jongmin Kim, Taegyun Moon, Seungri Song, Jong J. Kim, Jun‐Kyu Choi, Jaewoo Song, Chulmin Joo","doi":"10.1002/lpor.202401544","DOIUrl":"https://doi.org/10.1002/lpor.202401544","url":null,"abstract":"Fourier ptychographic microscopy (FPM) is a computational microscopy platform capable of large‐area, high‐resolution imaging of thin specimens. FPM enhances the spatial resolution beyond the diffraction limit of the objective by synthesizing frequency information from multiple images captured at various illumination angles. However, this enhancement comes at the cost of temporal resolution, making conventional FPMs unsuitable for imaging dynamic samples. The low temporal resolution of FPM is mainly attributed to two factors: the large number of measurements required for resolution improvement and the long exposure time, particularly in capturing dark‐field (DF) images. Here, a novel high‐throughput FPM strategy, termed PEH‐FPM, enabled by the combination of photon‐efficient, lenslet‐array‐integrated LED illuminator, and a hybrid multiplexed‐illumination scheme is introduced. The illuminator provides vignette‐free, high‐intensity illumination at the object plane, thereby dramatically reducing the DF acquisition time to a few milliseconds and eliminating vignetting‐induced artifacts present in conventional FPM approaches. The illumination‐multiplexing scheme significantly reduces the number of measurements, achieving a 0.51‐NA resolution across a field of view of 4.1 mm<jats:sup>2</jats:sup> with a total acquisition time of 21–40 msec, using 4 × 0.13NA objective. The imaging platform is expected to find numerous applications that call for dynamic, high‐resolution imaging over a large spatial scale.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"23 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Monolithically Integrated Ultra‐Low Threshold GeSn‐on‐Insulator Laser Using Rapid Melting Growth","authors":"Zhi Liu, Melvina Chen, Xiangquan Liu, Qinxin Huang, Yupeng Zhu, Yuhua Zuo, Zoran Ikonic, Buwen Cheng, Donguk Nam, Jun Zheng","doi":"10.1002/lpor.202401077","DOIUrl":"https://doi.org/10.1002/lpor.202401077","url":null,"abstract":"A low‐threshold, monolithically integrated laser on Si is considered a crucial missing ingredient in realizing efficient fully functional photonic‐integrated circuits (PICs). Owing to its compatibility with complementary metal‐semiconductor‐oxide (CMOS) processes, direct bandgap GeSn alloy has recently been studied intensively in hopes of making GeSn lasers the mainstream technology for PICs. However, the inevitable formation of harmful defects in GeSn directly grown on Si has thus far required the use of non‐monolithic approaches such as wafer bonding to obtain high‐quality GeSn layers, preventing the realization of practical, low‐threshold GeSn lasers. Here, ultra‐low threshold lasing in a monolithically‐grown, nearly‐defect‐free GeSn single‐crystal layer is demonstrated. The rapid melting growth method used in this study allows the fabrication of a compact, integrated laser that simultaneously achieves an ideal GeSn gain medium with built‐in tensile strain and an excellent GeSn optical cavity on an insulating layer. The measured threshold is ≈0.52 kW cm<jats:sup>−2</jats:sup> under the optical pumping scheme at 10 K, which is the lowest among all the reported GeSn lasers. This work provides a new solution for building a truly CMOS‐compatible, monolithic laser that can complete the device library of the mature Si photonics foundries.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"91 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Random Holography: Generating EPR‐Like Correlation with Thermal Photons","authors":"Zhiyuan Ye, Wanting Hou, Chen‐Xin Ding, Xue‐Jiao Men, Run‐Jie He, Jilun Zhao, Hai‐Bo Wang, Jun Xiong, Kaige Wang","doi":"10.1002/lpor.202401610","DOIUrl":"https://doi.org/10.1002/lpor.202401610","url":null,"abstract":"Entanglement and correlation of photons play a central role in quantum information and communication. There are two types of photon correlations: one usually exists in a two‐particle entangled state first conceived by Einstein, Podolsky, and Rosen (EPR) in 1935, while the other occurs in a thermal light source found by Hanbury Brown and Twiss (HBT) in 1956. Many studies are concerned with the physical nature and differences behind the two types of photon correlations. Here, a holography‐inspired linear optical system that generates a pair of conjugate chaotic beams is proposed, which include both HBT‐type and EPR‐like correlations. From principle to experimental generation, the study presents a classical paradigm of a simple bi‐correlation light source for diverse quantum‐mimic applications such as two‐photon imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"41 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Colorful Narrow‐Band Organic Polariton Light‐emitting Diodes Based on a Single Emitter","authors":"Shiyi Yuan, Yuanjun Guan, Yang Zhao, Cunbin An, Bo Liao, Chunling Gu, Zheng Sun, Qing Liao, Hongbing Fu","doi":"10.1002/lpor.202401532","DOIUrl":"https://doi.org/10.1002/lpor.202401532","url":null,"abstract":"Organic light‐emitting diodes hold promise for producing multicolor, narrowband emissions, and high‐definition displays. However, achieving a wide color gamut and strict color purity with high fidelity in line with BT.2020 standards is challenging. Here, a method is developed that incorporates organic films into a microcavity, leading to efficient organic polariton electroluminescence. The polariton OLEDs offer several advantages, such as a low turn‐on voltage, the ability to emit in six distinct narrowband colors covering blue to red, and robustness at current densities up to 118 A cm<jats:sup>−2</jats:sup>. By controlling photonic components, a wide color gamut and high color purity can be achieved. Remarkably, the method enables the red‐emitting devices to overcome the challenges posed by the exciton dark state, where the oscillator strength of the exciton is negligible. This innovation has the potential to promote the realization of electrically driven organic solid‐state lasers integrated into single‐component systems for cutting‐edge display and lighting applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"2D/Quasi-2D/3D CsPbIxBr3–x Vertical Heterostructures for High-Performance Infrared-Blind Visible-Light Photodetectors Toward Imaging Application","authors":"Ying Liang, Zhiyu Yan, Bo Feng, Jianjian Fei, Tian Yang, Xifa Liang, Haiyang Zhu, Pinhao Chen, Zhanfeng Huang, Lu Zhu","doi":"10.1002/lpor.202401230","DOIUrl":"https://doi.org/10.1002/lpor.202401230","url":null,"abstract":"Intrinsic near-infrared response of silicon-based photodetectors can cause undesirable noise and thus undermine performance in visible-light applications. All-inorganic perovskite CsPbI<i>_x</i>Br<i>_3–x</i> with the absorption cutoff at ≈720 nm shows significant potential in visible-light photodetection. However, its poor phase stability and high defect density on surfaces of polycrystalline films significantly impairs its performance. Constructing low-dimension/3D heterostructure atop CsPbI<i>_x</i>Br<i>_3–x</i> is an effective way to simultaneously address stability and defect challenges. Herein, a facile and universal strategy is demonstrated to construct 2D PEA₂PbI₂Br₂/quasi-2D PEA₂CsPb₂I₅Br₂/3D CsPbI<i>_x</i>Br<i>_3–x</i> heterostructures by two-step sequential surface treatment with phenylethylammonium bromide (PEABr). The PEABr pre-treatment in the first step favors the volatilization of dimethylammonium iodide to produce higher phase stability. With the addition of strong-polarity methanol in the solution for the second treatment, PEABr can easily react with the PbI<i>_x</i>Br₂<i>_–x</i> rich surface to form low-dimensional/3D perovskites heterostructure. Resultant heterostructure-based photodetectors achieve superior performance in photodiode-type photodetectors and enhanced stability, specifically a champion external quantum efficiency of 84% and detectivity of 3.1 × 10¹² Jones at 690 nm, and linear dynamic range of 163 dB. Finally, the visible-light imaging is demonstrated. This work offers a universal approach to realize CsPbI_<i>x</i>Br_<i>3–x</i> heterostructures and stimulates infrared-blind visible-light applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"17 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Explicit Symmetry Breaking of Generalized Angular Momentum by Second-Harmonic Generation in Underdense Plasmas","authors":"Alexis Voisine, Pierre Béjot, Franck Billard, Hugo Marroux, Olivier Faucher, Edouard Hertz","doi":"10.1002/lpor.202401180","DOIUrl":"https://doi.org/10.1002/lpor.202401180","url":null,"abstract":"Light beams possess two intrinsic quantized degrees of freedom, related to spin angular momentum (SAM) and orbital angular momentum (OAM), whose manipulation enables extensive control over the topological properties of electromagnetic fields. In this context, structured fields constructed from a non-separable combination of SAM and OAM have recently gained sustained interest. Such states are eigenstates of the so-called generalized angular momentum (GAM), a mixed angular momentum operator encompassing both SAM and OAM components, which can result in astonishing fractional eigenvalues. The demonstration of GAM conservation under harmonic generation has suggested a potential relevance of this new form of angular momentum as a meaningful quantum number. In the present work, the scope of evaluation is expanded by investigating its conservation law with second-harmonic generation in an underdense isotropic inhomogeneous plasma that relies on dipole-forbidden interaction implying spin-orbit coupling. This study reveals that the symmetry and topological properties of the field are disrupted during the nonlinear process, the GAM charge being only conserved on average. This symmetry breaking can be exploited to provide an easily detectable signature of the driving field topology or to create a robust topological attractor.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Transparent Composite for Cooperative Near-infrared and X-ray Imaging","authors":"Yupeng Huang, Shichao Lv, Dazhao Wang, Quan Dong, Dianhao Hou, Jingfei Chen, Zhuoming Yu, Quan Jiang, Xueliang Li, YuanKui Wu, Jianrong Qiu, Shifeng Zhou","doi":"10.1002/lpor.202401593","DOIUrl":"https://doi.org/10.1002/lpor.202401593","url":null,"abstract":"The advancement of imaging technology has significantly contributed to the progress in medical diagnosis and treatment, biomedical science, and various other fields. However, the visualization of comprehensive information on the imaged target remains a great challenge, especially for the complex biological system. Herein, it is proposed that the Cr³⁺-doped transparent glass composite with near-infrared (NIR) activity may gift a new possibility for achieving cooperative imaging. It presents remarkable photoluminescence (PL) and radioluminescence (RL) response in the NIR region, with ultra-broadband tunable luminescence (full-width half-maximum from 47 to 263 nm), excellent external quantum efficiency (&gt;50%), and robust RL thermal quenching resistance (83.85%@150 °C). Benefiting from these distinctive features, NIR imaging and high-resolution X-ray imaging with a spatial resolution exceeding 19 lp mm⁻¹ are successfully realized. Furthermore, a cooperative imaging device is developed and its practical applications for simultaneously visualizing bone and blood vessels in biological targets are demonstrated. These findings represent a significant advancement in the field of NIR active photonic materials for cutting-edge imaging technology.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"38 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Orthogonal‐Based Reconfigurable Light‐Controlled Metasurface for Multichannel Amplitude‐Modulation Communication","authors":"Yuxi Li, Ruichao Zhu, Sai Sui, Yajuan Han, Chang Ding, Yuxiang Jia, Shaojie Wang, Cunqian Feng, Shaobo Qu, Jiafu Wang","doi":"10.1002/lpor.202401470","DOIUrl":"https://doi.org/10.1002/lpor.202401470","url":null,"abstract":"Optical‐control reconfigurable metasurfaces can avoid crosstalk between microwave signal and direct current (DC) signal caused by physical wire connection, which paves a paradigm for dynamically and remotely controlling electromagnetic (EM) wave. However, the traditional light‐controlled reconfigurable metasurfaces mainly focus on the modulation of single polarized EM wave, which is difficult to adapt to the modulation of various signals in communication. In this work, a photoresistor is fully embedded into the meta‐atom as an active device, and a light‐controlled reconfigurable metasurface (LCRM) with multi‐polarization amplitude modulations is proposed. The designed metasurface controls the luminous intensity of light emitting diode (LED) array through computer, and then adjusts the photoresistor value, which can achieve amplitude modulations. In order to verify the feasibility and effectiveness of the proposed framework, the metasurface is simulated, fabricated, and measured, and the measurement results are basically consistent with the theoretical simulation results. Based on the EM characteristics of the designed metasurface, linear polarized (LP) wave synthesis and information transmission are carried out to demonstrate the design. This work designs an amplitude modulation metasurface under orthogonal‐polarization wave incidence to expand the LCRM application, which has broad development prospects in many fields such as information transmission, communication systems, and holographic imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}