Laser & Photonics Reviews最新文献

{"title":"Angle-Insensitive Spectral Imaging Based on Topology-Optimized Plasmonic Metasurfaces (Laser Photonics Rev. 18(12)/2024)","authors":"Jiawei Yang,&nbsp;Kaiyu Cui,&nbsp;Yidong Huang,&nbsp;Wei Zhang,&nbsp;Xue Feng,&nbsp;Fang Liu","doi":"10.1002/lpor.202470074","DOIUrl":"10.1002/lpor.202470074","url":null,"abstract":"<p><b>3D Photonic Device for Spatial Mode Bases Mapping</b></p><p>On-chip angle-robust computational spectral imaging based on topology-optimized plasmonic metasurfaces is proposed and experimentally reported in article number 2400255 by Kaiyu Cui, Yidong Huang, and co-workers. The fidelity of spectral reconstruction realized by an auto-encoder is over 98% under a 30° field-of-view, and spectral imaging for a standard color checker is demonstrated. This approach expands the application fields of spectral imaging chips such as wide-angle or off-axis spectral imaging.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 12","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.202470074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Observation of Photonic Chern Metal With Bi-Chiral Edge Propagation (Laser Photonics Rev. 18(12)/2024)","authors":"Yan-Chen Zhou,&nbsp;Ze-Qun Sun,&nbsp;Hua-Shan Lai,&nbsp;Xiao-Chen Sun,&nbsp;Cheng He,&nbsp;Yan-Feng Chen","doi":"10.1002/lpor.202470078","DOIUrl":"10.1002/lpor.202470078","url":null,"abstract":"<p><b>Photonic Chern Metals</b></p><p>Chern metal, a novel topological metallic state distinct from topological insulator and semimetal phases, is demonstrated by Yan-Chen Zhou, Xiao-Chen Sun, Cheng He, Yan-Feng Chen, and co-workers (see article number 2400826). This work thoroughly examines the interplay between parity and time-reversal symmetry breaking; and it reveals a hidden bulk-boundary correspondence. The figure is a stylized depiction of a unique phenomenon of Chern metals: switchable bi-chiral edge transport controlled by boundary engineering.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 12","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.202470078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Diffractive Neural Network on a 3D Photonic Device for Spatial Mode Bases Mapping (Laser Photonics Rev. 18(12)/2024)","authors":"Jue Wang,&nbsp;Kangrui Wang,&nbsp;Chengkun Cai,&nbsp;Tianhao Fu,&nbsp;Jian Wang","doi":"10.1002/lpor.202470072","DOIUrl":"10.1002/lpor.202470072","url":null,"abstract":"<p><b>3D Photonic Device for Spatial Mode Bases Mapping</b></p><p>By using the femtosecond laser direct writing technique, Jian Wang and co-workers design and fabricate a compact 3D photonic device based on diffractive neural network (DNN) for mode bases mapping, transforming orbital angular momentum (OAM) modes into linearly polarized (LP) modes; see article number 2400634. The capability of the compact 3D integrated device in spatial mode manipulation with favorable efficiency and flexibility is shown, making it suitable for grooming mode-division multiplexing (MDM) optical communications and optical interconnects, as well as other emerging applications with diverse spatial modes.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 12","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.202470072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Electrically Tunable Spin-Orbit Coupled Photonic Lattice in a Liquid Crystal Microcavity","authors":"Marcin Muszyński, Przemysław Oliwa, Pavel Kokhanchik, Piotr Kapuściński, Eva Oton, Rafał Mazur, Przemysław Morawiak, Wiktor Piecek, Przemysław Kula, Witold Bardyszewski, Barbara Piętka, Daniil Bobylev, Dmitry Solnyshkov, Guillaume Malpuech, Jacek Szczytko","doi":"10.1002/lpor.202400794","DOIUrl":"https://doi.org/10.1002/lpor.202400794","url":null,"abstract":"A 1D photonic crystal is created with strong polarization dependence and tunable by an applied electric field. This is accomplished in a planar microcavity by embedding a cholesteric liquid crystal (LC), which spontaneously forms a uniform lying helix (ULH). The applied voltage controls the orientation of the LC molecules and, consequently, the strength of a polarization-dependent periodic potential. It leads to opening or closing of photonic bandgaps in the dispersion of the massive photons in the microcavity. In addition, when the ULH structure possesses a molecular tilt, it induces a spin-orbit coupling between the lattice bands of different parity. This interband spin-orbit coupling (ISOC) is analogous to optical activity and can be treated as a synthetic non-Abelian gauge potential. Finally, it is showed that doping the LC with dyes allows us to achieve lasing that inherits all the above-mentioned tunable properties of LC microcavity, including dual and circularly-polarized lasing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142788724","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":"Scalability of Ultralow-Loss Calibration-Free Silicon Photonic Mach-Zehnder Switches","authors":"Lijia Song, Xiaomin Jiao, Zian Cao, Weixi Liu, Shangtong Zou, Xiaoyu Fang, Siwen Fan, Huan Li, Yaocheng Shi, Daoxin Dai","doi":"10.1002/lpor.202401353","DOIUrl":"https://doi.org/10.1002/lpor.202401353","url":null,"abstract":"With the rapid development of artificial intelligence (AI) based on deep neural networks, large-scale photonic switches are essential components for the fast and efficient communication of unprecedentedly large amounts of data between processing units and memories. In this paper, a comprehensive Monte Carlo analysis is provided on the scalability of Mach–Zehnder switch (MZS) networks utilizing Benes topologies as an example, employing the transfer matrix method. The results show that iterative calibration algorithms with high time complexities are infeasible for large-scale MZSs with significant random phase imbalances, which, instead of the excess loss, is the dominant fundamental obstacle for scaling up MZS. Therefore, calibration-free MZSs are crucial for scaling up. To further validate the key assumptions of the Monte Carlo analysis above, ultralow-loss 2 × 2 MZSs and 4 × 4 Benes MZSs fabricated with standard 180-nm silicon photonics foundry processes are systematically characterized. Drawing from the statistical experimental results of random phase imbalance and excess loss, the scalability of the Benes topology is projected and concludes that it is promising to realize large-scale, low-excess-loss, calibration-free <i>N</i> × <i>N</i> photonic switches (e.g., <i>N</i> ≥ 64) based on these proposed MZS for agile, flexible, and scalable optical packet/burst switching (OPS/OBS) in data centers.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"9 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142788726","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":"Ultrathin, Wavelength-Multiplexed and Integrated Holograms and Optical Neural Networks Based on 2D Perovskite Nanofilms","authors":"Jinming Hu, Shengting Zhu, Ying Lv, Ronghui Guo, Min Gu, Yinan Zhang","doi":"10.1002/lpor.202401458","DOIUrl":"https://doi.org/10.1002/lpor.202401458","url":null,"abstract":"Holography, as a technique for coherent wavefront reconstruction, is extensively used in numerous optical applications such as optical imaging, 3D display, photolithography, and optical artificial intelligence. In order to achieve highly compact and functional integration with optoelectronic devices, the hologram needs to possess ultrathin thickness as well as multicolor functionality. However, its thickness is typically limited to optical wavelength ranges due to the requirement for pronounced amplitude or phase modulation, and it generally operates at a single wavelength band without wavelength-multiplexed channels. Here, the hologram is decreased thickness to sub-ten nanometers by exploiting the large refractive index and strong exciton absorption of 2D perovskites. Ultrathin perovskite holograms and holographic neural networks with high stability are successfully developed by using femtosecond laser direct writing, and their operation wavelength can be rationally tuned from 400–515 nm through halide anion engineering. Consequently, the wavelength can be multiplexed with low cross-talks by stacked perovskite nanolayers for applications of holographic display and neural networks without the usages of complex optical structures or filters. This work provides a feasible and promising technical route for integrating ultrathin, high pixel density, and multiplexed holographic structures with flat optoelectronic devices for next-generation integrated optical systems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"8 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142788410","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":"Defects in Ligand-Exchange-Passivated Mixed-Halide Double Perovskite Nanocrystals for X-ray Imaging","authors":"Gaoyuan Xing, Endian Cui, Xiangyang Yuan, Bing Wang, Yanan Zhao, Jianfeng Tang, Jiucun Chen, Jing Liu","doi":"10.1002/lpor.202401552","DOIUrl":"https://doi.org/10.1002/lpor.202401552","url":null,"abstract":"Nanostructured scintillators, renowned for their exceptional miniaturization and portability, are typically designed with homogeneous dopant ion concentration profiles. While these profiles facilitate consistent optical properties, they may pose challenges in terms of compromising light emission intensity and overall scintillation efficiency. A pressing issue in the field of X-ray flat-panel minidetectors is the lack of specific and innovative strategies to significantly enhance radioluminescence capabilities, which has hindered further advancements. This research showcases an efficacious strategy for synthesizing ligand-exchange-passivated mixed-halide double perovskite nanocrystals (NCs) tailored for their remarkable scintillation capabilities. The mixed-halide composition is fine-tuned via anion exchange between Bi³⁺ and Tb³⁺-doped Cs₂AgInCl₆ NCs and potassium bromide (KBr). Additionally, the initial oleic acid ligands are substituted with 1-dodecanethiol (1-DT), effectively compensating for inherent halogen vacancies and mitigating halide ion migration. The underlying passivation mechanism is elucidated through a comprehensive approach that combined spectroscopic experiments and theoretical calculations. Consequently, the fabricated transparent scintillator films, incorporating synthesized mixed-halide double perovskite NCs, exhibit a high light yield of ≈20 952 photons MeV⁻¹, a sensitive detection limit of 207.5 nGy_air s⁻¹, exceptional spatial resolution of 8.1 lp mm⁻¹, and unparalleled stability under prolonged X-ray irradiation.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"6 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777421","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":"Correction to “Leaky-Integrate-and-Fire Mechanism in Exciton-Polariton Condensates for Photonic Spiking Neurons”","authors":"","doi":"10.1002/lpor.202401760","DOIUrl":"https://doi.org/10.1002/lpor.202401760","url":null,"abstract":"&lt;p&gt;K. Tyszka, M. Furman, R. Mirek, M. Król, A. Opala, B. Seredyński, J. Suffczyński, W. Pacuski, M. Matuszewski, J. Szczytko, B. Piętka, Leaky Integrate-and-Fire Mechanism in Exciton–Polariton Condensates for Photonic Spiking Neurons. Laser Photonics Rev 2022, 17, 2100660. https://doi.org/10.1002/lpor.202100660&lt;/p&gt;\u0000&lt;p&gt;In this article, an error was identified in the caption and panel numbering of Figure 5. Panels (d) and (e) were inadvertently switched, and two of the panel references were omitted from the caption.&lt;/p&gt;\u0000&lt;p&gt;The revised version of Figure 5, along with its caption, is provided below.&lt;/p&gt;\u0000&lt;p&gt;&lt;img alt=\"image\" loading=\"lazy\" src=\"/cms/asset/fbfcce6b-1d66-4e26-9f27-5d8a715c5a15/lpor202401760-gra-0001.png\"/&gt;&lt;/p&gt;\u0000&lt;p&gt;&lt;b&gt;Figure 5&lt;/b&gt; (a) Dependence of the delay &lt;span data-altimg=\"/cms/asset/eca883e0-c28c-4d85-8dbb-805ba553f148/lpor202401760-math-0001.png\"&gt;&lt;/span&gt;&lt;mjx-container ctxtmenu_counter=\"14\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"&gt;&lt;mjx-math aria-hidden=\"true\" location=\"graphic/lpor202401760-math-0001.png\"&gt;&lt;mjx-semantics&gt;&lt;mjx-mrow data-semantic-annotation=\"clearspeak:simple;clearspeak:unit\" data-semantic-children=\"0,1\" data-semantic-content=\"2\" data-semantic- data-semantic-role=\"implicit\" data-semantic-speech=\"normal upper Delta normal t\" data-semantic-type=\"infixop\"&gt;&lt;mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"greekletter\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-mo data-semantic-added=\"true\" data-semantic- data-semantic-operator=\"infixop,⁢\" data-semantic-parent=\"3\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\" style=\"margin-left: 0.056em; margin-right: 0.056em;\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"latinletter\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;/mjx-mrow&gt;&lt;/mjx-semantics&gt;&lt;/mjx-math&gt;&lt;mjx-assistive-mml display=\"inline\" unselectable=\"on\"&gt;&lt;math altimg=\"urn:x-wiley:18638880:media:lpor202401760:lpor202401760-math-0001\" display=\"inline\" location=\"graphic/lpor202401760-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;semantics&gt;&lt;mrow data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple;clearspeak:unit\" data-semantic-children=\"0,1\" data-semantic-content=\"2\" data-semantic-role=\"implicit\" data-semantic-speech=\"normal upper Delta normal t\" data-semantic-type=\"infixop\"&gt;&lt;mi data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic-parent=\"3\" data-semantic-role=\"greekletter\" data-semantic-type=\"identifier\" mathvariant=\"normal\"&gt;Δ&lt;/mi&gt;&lt;mo data-semantic-=\"\" data-semantic-added=\"true\" data-semantic-operator=\"infixop,⁢\" data-semantic-parent=\"3\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\"&gt;⁢&lt;/mo&gt;&lt;mi data","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777424","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":"Power Clamping in Second Harmonic Generation Within an On-Chip Lithium Niobate Microdisk","authors":"Botao Fu, Renhong Gao, Ni Yao, Jintian Lin, Min Wang, Lingling Qiao, Ya Cheng","doi":"10.1002/lpor.202401575","DOIUrl":"https://doi.org/10.1002/lpor.202401575","url":null,"abstract":"On-chip lithium niobate (LN) microresonator is regarded as a promising candidate for power clamping in second harmonic generation (SHG) owing to its high-quality factor, small mode volume, and large nonlinear coefficient. To date, various theories have been proposed to describe the three-wave mixing mechanism within a LN microresonator, while a comprehensive understanding of mode evolution and its impact on nonlinear frequency conversion efficiency especially for power clamping, is still limited. Here, the dual-resonance detuning dynamics are investigated theoretically and the effect of mode chord angles on nonlinear frequency conversion efficiency is analyzed. Experimentally, two distinct power clamping points, including the normalized conversion efficiency of ≈38% mW⁻¹ and output power of ≈1.2 mW, are separately observed in the same microresonator, consistent with the theoretical model. The results clarify the physical mechanism behind the power clamping in the observed SHG and offer a unique approach to achieving efficient and powerful SHG in LN microresonators.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"4 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777423","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":"Custom-Shapable and Reusable Thermoplastic Manganese Halide Scintillation Glass for Curved X-Ray Imaging","authors":"Zijian Zhou, Zhe Feng, Jiangang Li, Yongkang Zhu, Tianhan Gu, Wenjuan Zhu, Xiuwen Xu, Shujuan Liu, Feng Wang, Qiang Zhao","doi":"10.1002/lpor.202401489","DOIUrl":"https://doi.org/10.1002/lpor.202401489","url":null,"abstract":"Luminescent metal halides (MHs), whether in the form of rigid single crystal or flexible polymer-MH composite, are currently at the forefront of next-generation scintillator development. However, the stringent conditions required for single crystal growth and the opacity of polymer-MH composites due to severe light scattering pose challenges for achieving high-resolution X-ray imaging of intricate objects with irregular geometries. Herein, a flexible, transparent, and thermoplastic 0D manganese (Mn) halide scintillation glass is reported by using a facile melt-quenching approach. Through alkylating triethylene diamine (ted) with extended chain length and employing it as the spacer, the coulombic interaction within the 0D manganese halide is greatly attenuated, thus lowering the melting temperature (<i>T_m</i>) and glass transition temperature (<i>T_g</i>) necessary for glass formation under a mild condition. The scintillation glass exhibits a high relative light yield of 20784 photons MeV⁻¹ and an impressive spatial resolution of 20.4 lp mm⁻¹. More importantly, due to the low <i>T_g</i> and excellent reusability, one scintillation glass can be custom-shaped to conform to different matters with various irregular geometries for multiple times, all achieving high-resolution curved X-ray imaging. This work opens a new avenue for reusable curved X-ray imaging through thermoplastic scintillation glasses.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777422","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}