物理与天体物理最新文献

{"title":"Searches for multi-Z boson productions and anomalous gauge boson couplings at a muon collider* * Supported in part by the National Natural Science Foundation of China (12150005, 12075004, 12061141002) and MOST (2018YFA0403900)","authors":"Ruobing Jiang, Chuqiao Jiang, Alim Ruzi, Tianyi Yang, Yong Ban, Qiang Li","doi":"10.1088/1674-1137/ad5661","DOIUrl":"https://doi.org/10.1088/1674-1137/ad5661","url":null,"abstract":"Multi-boson productions can be exploited as novel probes either for standard model precision tests or new physics searches, and have become a popular research topic in ongoing LHC experiments and future collider studies, including those for electron–positron and muon–muon colliders. In this study, we focus on two examples, <italic toggle=\"yes\">i.e</italic>., <inline-formula>\u0000<tex-math><?CDATA $ {text{Z}} {text{Z}} {text{Z}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> direct productions through <inline-formula>\u0000<tex-math><?CDATA $ mu^+mu^- $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> annihilation at a <inline-formula>\u0000<tex-math><?CDATA $ 1, {text{TeV}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> muon collider, and <inline-formula>\u0000<tex-math><?CDATA $ {text{Z}} {text{Z}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> productions through vector boson scattering (VBS) at a <inline-formula>\u0000<tex-math><?CDATA $ 10, {text{TeV}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> muon collider, with an integrated luminosity of <inline-formula>\u0000<tex-math><?CDATA $10; text{ab}^{-1}$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>. Various channels are considered, including <inline-formula>\u0000<tex-math><?CDATA $ {text{Z}} {text{Z}} {text{Z}} rightarrow 4ell2nu $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ {text{Z}} {text{Z}} {text{Z}} rightarrow 4ell $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_103102_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>+2jets. The expected significance on these multi-Z boson production processes is reported based on a detailed Monte Carlo study and signal background analysis. Sensitivities on anomalous gauge boson couplings are also presented.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Cross section measurement for the 232Th(n, f ) reaction in the 4.50−5.40 MeV region using a time projection chamber* * This study was financially Supported by the National Natural Science Foundation of China (12075008), the Key Laboratory of Nuclear Data foundation (6142A08200103), the Basic and Applied Basic Research Foundation of Guangdong Province, China (2021B1515120027), and the State Key Laboratory of Nuclear Physics and Technology, Peking University (NPT2021KFJ57)","authors":"Haofan Bai, Han Yi, Yankun Sun, Yiwei Hu, Jie Liu, Zepeng Wu, Cong Xia, Wenkai Ren, Wentian Cao, Tieshuan Fan, Guohui Zhang, Ruirui Fan, Yang Li, Wei Jiang, Yonghao Chen, You Lv, Changjun Ning, Weihua Jia, Zhiyong Zhang, Haolei Chen, Zhen Chen, Maoyuan Zhao, Changqing Feng, Shubin Liu","doi":"10.1088/1674-1137/ad5ae6","DOIUrl":"https://doi.org/10.1088/1674-1137/ad5ae6","url":null,"abstract":"Accurate cross sections of neutron induced fission reactions are required in the design of advanced nuclear systems and the development of fission theory. Time projection chambers (TPCs), with their track reconstruction and particle identification capabilities, are considered the best detectors for high-precision fission cross section measurements. The TPC developed by the back-streaming white neutron source (Back-n) team of the China Spallation Neutron Source (CSNS) was used as the fission fragment detector in measurements. In this study, the cross sections of the ²³²Th(<italic toggle=\"yes\">n</italic>, <italic toggle=\"yes\">f</italic>) reaction at five neutron energies in the 4.50−5.40 MeV region were measured. The fission fragments and α particles were well identified using our TPC, which led to a higher detection efficiency of the fission fragments and smaller uncertainty of the measured cross sections. Ours is the first measurement of the ²³²Th(<italic toggle=\"yes\">n, f</italic>) reaction using a TPC for the detection of fission fragments. With uncertainties less than 5%, our cross sections are consistent with the data in different evaluation libraries, including JENDL-4.0, ROSFOND-2010, CENDL-3.2, ENDF/B-VIII.0, and BROND-3.1, whose uncertainties can be reduced after future improvement of the measurement.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Collective flow and fluid behavior in p/d/3He+Au collisions at GeV* * Supported in part by the National Natural Science Foundation of China (12247107, 12075007, 12147173 (Baochi Fu))","authors":"Zeming Wu, Baochi Fu, Shujun Zhao, Runsheng Liu, Huichao Song","doi":"10.1088/1674-1137/ad5ae8","DOIUrl":"https://doi.org/10.1088/1674-1137/ad5ae8","url":null,"abstract":"By varying the intrinsic initial geometry, <italic toggle=\"yes\">p</italic>/<italic toggle=\"yes\">d</italic>/³He+Au collisions at the Relativistic Heavy Ion Collider (RHIC) provide a unique opportunity to understand the collective behavior and probe possible sub-nucleon fluctuations in small systems. In this study, we employed the hybrid model <inline-formula>\u0000<tex-math><?CDATA $ {mathrm{iEBE-VISHNU}}$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_104102_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> under TRENTo initial conditions to study the collective flow and fluid behavior in <italic toggle=\"yes\">p</italic>/<italic toggle=\"yes\">d</italic>/³He+Au collisions. With fine-tuned parameters, <inline-formula>\u0000<tex-math><?CDATA $ {mathrm{iEBE-VISHNU}}$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_104102_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> can describe the <inline-formula>\u0000<tex-math><?CDATA $ v_2(p_T) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_104102_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ v_3(p_T) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_104102_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> data from the PHENIX and STAR collaborations. However, for certain parameter sets with initial sub-nucleon fluctuations, the hydrodynamic simulations already go beyond their limits with an average Knudsen number <inline-formula>\u0000<tex-math><?CDATA $ langle K_n rangle $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_10_104102_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> clearly larger than unity. Our calculations demonstrate that, for a meaningful evaluation of the fluid behavior in small systems, model simulations must also pay attention to the validity range of hydrodynamics.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"The ring-shaped shadow of a rotating naked singularity with a complete photon sphere*","authors":"Mingzhi Wang, 明智 王, Guanghai Guo, 广海 郭, Pengfei Yan, 鹏飞 闫, Songbai Chen, 松柏 陈, Jiliang Jing and 继良 荆","doi":"10.1088/1674-1137/ad5660","DOIUrl":"https://doi.org/10.1088/1674-1137/ad5660","url":null,"abstract":"We investigate the shadows of the Konoplya-Zhidenko naked singularity. In the spacetime of the Konoplya-Zhidenko naked singularity, not only an unstable retrograde light ring (LR) but also an unstable prograde LR exists, leading to the formation of a complete photon sphere (PS). Due to the absence of an event horizon, a dark disc-shaped shadow does not appear; instead, a ring-shaped shadow is observed. The ring-shaped shadow appears as an infinite number of relativistic Einstein rings in the image of the naked singularity. For some parameter values, only the unstable retrograde LR exists, resulting in an incomplete unstable PS and thus giving rise to an arc-shaped shadow for the Konoplya-Zhidenko naked singularity. The shadow of the Konoplya-Zhidenko naked singularity gradually shifts to the right as the rotation parameter a increases and gradually becomes smaller as the deformation parameter increases. Moreover, stable LRs and stable photon spherical orbits can exist in the Konoplya-Zhidenko naked singularity spacetime, but they have no effect on the image of the naked singularity. This study demonstrates that a rotating naked singularity can exhibit not only an arc-shaped shadow but also a ring-shaped shadow.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Explanation for the Absence of Secondary Peaks in Black Hole Light Curve Autocorrelations","authors":"Alejandro Cárdenas-Avendaño, Charles Gammie, Alexandru Lupsasca","doi":"10.1103/physrevlett.133.131402","DOIUrl":"https://doi.org/10.1103/physrevlett.133.131402","url":null,"abstract":"The observed radiation from hot gas accreting onto a black hole depends on both the details of the flow and the spacetime geometry. The lensing behavior of a black hole produces a distinctive pattern of autocorrelations within its photon ring that encodes its mass, spin, and inclination. In particular, the time autocorrelation of the light curve is expected to display a series of peaks produced by light echoes of the source, with each peak delayed by the characteristic time lapse <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mi>τ</mi></mrow></math> between light echoes. However, such peaks are absent from the light curves of observed black holes. Here, we develop an analytical model for such light curves that demonstrates how, even though light echoes always exist in the signal, they do not produce autocorrelation peaks if the characteristic correlation timescale <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub><mi>λ</mi><mn>0</mn></msub></math> of the source is greater than <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>τ</mi></math>. We validate our model against simulated light curves of a stochastic accretion model ray traced with a general-relativistic code, and then fit the model to an observed light curve for Sgr <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><msup><mrow><mi mathvariant=\"normal\">A</mi></mrow><mrow><mo>*</mo></mrow></msup></mrow></math>. We infer that <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><msub><mrow><mi>λ</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>&gt;</mo><mi>τ</mi></mrow></math>, providing an explanation for the absence of light echoes in the time autocorrelations of Sgr <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><msup><mrow><mi mathvariant=\"normal\">A</mi></mrow><mo>*</mo></msup></math> light curves. Our results highlight the importance for black hole parameter inference of spatially resolving the photon ring via future space-based interferometry.","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":null,"pages":null},"PeriodicalIF":8.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325636","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":"Theoretical design of monoelemental ferroelectricity with tunable spin textures in bilayer tellurium","authors":"Jiajun Zhu, Botao Fu, Heyun Zhao, Wanbiao Hu","doi":"10.1103/physrevb.110.125434","DOIUrl":"https://doi.org/10.1103/physrevb.110.125434","url":null,"abstract":"Two-dimensional (2D) ferroelectricity with switchable electric polarization has drawn widespread attention in condensed matter physics due to its crucial applications in nonvolatile memory and ferroelectric spin devices. Despite recent progress in 2D ferroelectricity, achieving monoelemental (ME) ferroelectricity still remains a great challenge because most nonmetallic ME materials are stabilized in nonpolar crystal structures. In this work, we theoretically designed ME ferroelectricity with tunable and significant spin textures in bilayer tellurium (BL-Te). Comprehensive polarization calculations demonstrate that asymmetric stacking in BL-Te can generate out-of-plane (OOP) polarization with a magnitude of 0.49 pC/m. This polarization stems from distinguishing interlayer and intralayer contributions. Moreover, these stacked BL-Te, characterized by significant spin-orbit coupling, serve as an ideal platform for investigating both conventional spin polarization and layer-dependent/hidden spin polarization through ferroelectric reversion. Our work not only broadens the family of 2D ME ferroelectrics but also offers a new platform for multifunctional nanodevices.","PeriodicalId":20082,"journal":{"name":"Physical Review B","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Light-Induced Complete Reversal of Ferroelectric Polarization in Sliding Ferroelectrics","authors":"Qing Yang, Sheng Meng","doi":"10.1103/physrevlett.133.136902","DOIUrl":"https://doi.org/10.1103/physrevlett.133.136902","url":null,"abstract":"Previous experiments have provided evidence of sliding ferroelectricity and photoexcited interlayer shear displacement in two-dimensional materials, respectively. Herein, we find that a complete reversal of vertical ferroelectric polarization can be achieved within an astonishing 0.5 ps in <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mi>h</mi><mtext>−</mtext><mi>BN</mi></mrow></math> bilayer by laser illumination. Comprehensive analysis suggests that ferroelectric polarization switching originates from laser-induced interlayer sliding triggered by selective excitation of multiple phonons. The interlayer electron excitation from the <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><msub><mi>p</mi><mi>z</mi></msub></mrow></math> orbitals of the upper layer N atoms to the <math display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><msub><mi>p</mi><mi>z</mi></msub></mrow></math> orbitals of the lower layer B atoms produces desirable and directional interlayer forces activating the in-plane optical TO-1 and LO-1 phonon modes. The atomic motions driven by the coupling of TO-1 and LO-1 modes are coherent with ferroelectric soft mode, thus modulating the dynamical potential energy surface and resulting in ultrafast ferroelectric polarization reversal. Our work provides a novel microscopic insight into ultrafast polarization switching in sliding ferroelectrics.","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":null,"pages":null},"PeriodicalIF":8.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325649","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":"Acoustic metaslit for regional sound insulation for a three-dimensional diffuse sound field incidence","authors":"","doi":"10.1016/j.apacoust.2024.110297","DOIUrl":"10.1016/j.apacoust.2024.110297","url":null,"abstract":"<div><div>An acoustic metaslit model designed for regional sound insulation, employing waveguide modes and the directivity of openings, is introduced. This model characterizes the frequency responses of numerical simulations. The performance of metaslits, made from steel plates, is experimentally validated under diffuse sound field conditions and assessed by measuring acoustic power differences using intensity probes. The frequency response of single and multiple-unit metaslits shows peaks at multiples of the target frequencies. Additionally, experimental results demonstrate that the three-dimensional structure does not influence the two-dimensional regional sound insulation phenomenon. Furthermore, comparisons between experimental and numerical results indicate that obstacles near the outlets of metaslits can impact their performance.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Motion coprime array-based DOA estimation considering phase disturbance of sensor array","authors":"","doi":"10.1016/j.apacoust.2024.110313","DOIUrl":"10.1016/j.apacoust.2024.110313","url":null,"abstract":"<div><div>To address the phase disturbance issue faced by sensor arrays in practical applications, a cascaded deep convolutional neural network structure is proposed to achieve direction-of-arrival (DOA) estimation for motion coprime arrays. Firstly, the synthesized covariance matrix obtained after motion is inputted into the first-level network for estimating the phase disturbance matrix. Then, we analyze the impact of phase perturbation on the synthesized covariance matrix and utilize the estimated disturbance phase to obtain an undisturbed synthesized covariance matrix. Finally, after phase compensation, the synthesized covariance matrix performs DOA estimation through the second-level network. Furthermore, to acquire three times the virtual unique lags of the coprime array, the synthesis condition about moving distance and unique lags is derived. The proposed method is shown to be effective and superior through the experiment results.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Bidirectional high-speed optical wireless communication with tunable large field of view assisted by liquid crystal metadevice","authors":"Mian Wu, Chao Yang, Yuhan Gong, Lin Wu, Ming Luo, Ying Qiu, Yongquan Zeng, Zile Li, Zichen Liu, Chao Li, Hanbing Li, Xi Xiao, Zhixue He, Guoxing Zheng, Shaohua Yu, Jin Tao","doi":"10.1515/nanoph-2024-0434","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0434","url":null,"abstract":"Beam-steered infrared (IR) light communication has gained tremendous attention as one of the solutions of congested wireless communication traffic. High performance active beam-steering devices play a crucial role in data allocation and exchange. Conventional beam-steering devices such as spatial light modulator (SLM) and micro-electrical mechanical system (MEMS) mirror and the current emerging nonmechanical beam-steering metasurface-based devices are challenging to realize a large tunable steering angle beyond several degrees, which significantly hinders the spatial application of optical wireless communications (OWC). Herein, an angle-magnified liquid crystal (LC) metadevice consisting of LC metasurfaces and a liquid crystal on silicon (LCoS) is proposed to realize active beam steering with a tunable large field of view (FOV). Based on the angle-magnified tunable LC metadevice, an intelligent bidirectional high-speed OWC system is experimentally demonstrated, achieving an actively enlarged FOV of 20° × 20°, with a data rate of 200 Gbps over the S/C/L band for both uplink and downlink transmission over a propagation distance of 1.5 m in free space. The proposed OWC system opens a new avenue for the future high performance wireless data transmission.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":null,"pages":null},"PeriodicalIF":7.5,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}