Advanced Physics Research最新文献_第2页

Structured Light Fields with 2D Tunable Indices Generated in a Raman Microchip Laser 拉曼微芯片激光器中二维可调指数结构光场

Advanced Physics Research Pub Date : 2025-02-25 DOI: 10.1002/apxr.202400167

Ye Zhang, Siyuan Liu, Jianwei Yang, Yufei Chen, Hongsen He, Jun Dong

{"title":"Structured Light Fields with 2D Tunable Indices Generated in a Raman Microchip Laser","authors":"Ye Zhang, Siyuan Liu, Jianwei Yang, Yufei Chen, Hongsen He, Jun Dong","doi":"10.1002/apxr.202400167","DOIUrl":"https://doi.org/10.1002/apxr.202400167","url":null,"abstract":"Structured light fields in the form of Hermite-Gaussian modes with 2D tunable indices of m and n (HGm,n), and optical vortices in the form of Laguerre-Gaussian modes with radial index p and azimuthal index l (LGp,l) are extremely needed for applications on optical communications, optical trapping, and quantum information processing. Here, high-order HGm,n modes and LGp,l optical vortices with 2D tunable indices are generated in a gain-manipulated Yb:YAG/YVO4 Raman microchip laser (RML). The gain distribution is manipulated by controlling the separation between Yb:YAG crystal and the focus spot of the y-axis of the laser diode (Δz). HGm,n modes with 2D tunable indices of m up to 14 and n up to 2 are generated in Yb:YAG/YVO4 RML by setting Δz = −0.5, −4.1, and −6.6 mm. The power of HG14,0, HG7,1, and HG6,2 mode lasers are 0.49, 0.31, and 0.34 W under pump power of 3.1 W, and corresponding optical efficiencies are 11%, 7%, and 7.7%. LGp,l optical vortices with p = 0, 1, 2, and l up to 14 are converted from HGm,n mode lasers with a conversion efficiency of over 90%. High beam quality HGm,n modes, and LGp,l optical vortices with 2D tunable indices oscillating at Stokes wavelengths dramatically extend their applications.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400167","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Field Guide to Non-Onsager Quantum Oscillations in Metals 金属中非onsager量子振荡的场指南

Advanced Physics Research Pub Date : 2025-02-25 DOI: 10.1002/apxr.202400134

Valentin Leeb, Nico Huber, Christian Pfleiderer, Johannes Knolle, Marc A. Wilde

{"title":"A Field Guide to Non-Onsager Quantum Oscillations in Metals","authors":"Valentin Leeb, Nico Huber, Christian Pfleiderer, Johannes Knolle, Marc A. Wilde","doi":"10.1002/apxr.202400134","DOIUrl":"https://doi.org/10.1002/apxr.202400134","url":null,"abstract":"Quantum oscillation (QO) measurements constitute a powerful method to measure the Fermi surface (FS) properties of metals. The observation of QOs is usually taken as strong evidence for the existence of extremal cross-sectional areas of the FS according to the famous Onsager relation. Here, mechanisms that generate QO frequencies that defy the Onsager relation are reviewed and material candidates are discussed. These include magnetic breakdown, magnetic interaction, chemical potential oscillations, and Stark quantum interference, most of which lead to signals occurring at combinations of “parent” Onsager frequencies. A special emphasis is put on the recently discovered mechanism of quasi-particle lifetime oscillations (QPLOs). This work aims to provide a field guide that allows, on the one hand, to distinguish such non-Onsager QOs from conventional QOs arising from extremal cross sections and, on the other hand, to distinguish the various non-Onsager mechanisms from each other. A practical classification of non-Onsager QOs is given in terms of the prerequisites for their occurrence and their characteristics. It is shown that, in particular, the recently discovered QPLOs may pose significant challenges for the interpretation of QO spectra, as they may occur quite generically as frequency differences in multi-orbit systems, without the necessity of visible “parent” frequencies in the spectrum, owing to a strongly suppressed temperature dephasing of QPLOs. An extensive list of material candidates is presented where QPLOs may represent an alternative explanation for the observation of unexpected QO frequencies.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400134","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operation of Single-Spin Qubits: Recent Advances and Prospects 单自旋量子比特的操作：最新进展与展望

Advanced Physics Research Pub Date : 2025-02-21 DOI: 10.1002/apxr.202400146

Zhizhuo Zhang, Jushang Ran, Fei Gao, Chuancheng Jia, Xuefeng Guo

{"title":"Operation of Single-Spin Qubits: Recent Advances and Prospects","authors":"Zhizhuo Zhang, Jushang Ran, Fei Gao, Chuancheng Jia, Xuefeng Guo","doi":"10.1002/apxr.202400146","DOIUrl":"https://doi.org/10.1002/apxr.202400146","url":null,"abstract":"As a foundational technology in quantum information science (QIS), the manipulation and detection of quantum spins enable precise control, opening new avenues for significant advancements. Early research focused on macroscopic ensemble quantum systems, where electron spin resonance is used to coherently address electron spins within different ensembles. However, the low initialization efficiency and readout sensitivity of such systems hinder their further development. Unlocking the full potential of quantum technology, it is essential to achieve single-spin precision. Various quantum systems, including color centers, quantum dots, atoms, and molecules, have been demonstrated the capability for single-spin manipulation. The successful control of spin quantum states in these systems through diverse techniques has paved the way for new ideas and boundless possibilities in QIS. This review provides a comprehensive overview of recent significant advances in the field and explores future development directions, aiming to shed light on the ongoing evolution of QIS.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Issue Information (Adv. Phys. Res. 2/2025) 发行信息（物理广告）研究》2/2025)

Advanced Physics Research Pub Date : 2025-02-10 DOI: 10.1002/apxr.202570004

引用次数: 0

The Hard Ferromagnetism in FePS3 Induced by Non-Magnetic Molecular Intercalation (Adv. Phys. Res. 2/2025) 非磁性分子插层诱导FePS3的硬铁磁性研究[j]。研究》2/2025)

Advanced Physics Research Pub Date : 2025-02-10 DOI: 10.1002/apxr.202570003

Yunbo Ou, Xiaoyin Li, Jan Kopaczek, Austin Davis, Gigi Jackson, Mohammed Sayyad, Feng Liu, Seth Ariel Tongay

{"title":"The Hard Ferromagnetism in FePS3 Induced by Non-Magnetic Molecular Intercalation (Adv. Phys. Res. 2/2025)","authors":"Yunbo Ou, Xiaoyin Li, Jan Kopaczek, Austin Davis, Gigi Jackson, Mohammed Sayyad, Feng Liu, Seth Ariel Tongay","doi":"10.1002/apxr.202570003","DOIUrl":"https://doi.org/10.1002/apxr.202570003","url":null,"abstract":"Anisotropic ferromagnetism within antiferromagnetic crystalsThe cover feature showcases the emergence of hard anisotropic ferromagnetism following the intercalation of nonmagnetic pyridinium ions into antiferromagnetic FePS3 single crystals. In article number 202400101, Yunbo Ou, Feng Liu, Seth Ariel Tongay, and colleagues report the transition from antiferromagnetism to ferromagnetism in pyridinium-intercalated FePS3, thereby highlighting both the energetically stable B-phase and metastable P-phase. These phases exhibit remarkable properties, including giant coercive fields exceeding 7 T and high Curie temperatures (72–87 K). As revealed by X-ray photoelectron spectroscopy and supported by first-principles calculations and atomistic spin dynamics simulations, electron transfer from the pyridinium ions to FePS3 plays a key role in driving this transition. This work offers crucial insights into hard magnetism in intercalated van der Waals materials, thus paving the way for advances in 2D magnet-based technologies.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202570003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Superconducting Nanowire Detection of Neutral Atoms and Molecules via Their Internal and Kinetic Energy in the eV Range (Adv. Phys. Res. 2/2025) 在eV范围内利用超导纳米线检测中性原子和分子的内能和动能[j]。研究》2/2025)

Advanced Physics Research Pub Date : 2025-02-10 DOI: 10.1002/apxr.202570005

M. Strauß, R. Gourgues, M. F. X. Mauser, L. Kulman, M. Castaneda, A. Fognini, A. Shayeghi, P. Geyer, M. Arndt

引用次数: 0

Electrical Manipulation of Intervalley Trions in Twisted MoSe2 Homobilayers at Room Temperature 室温下扭曲MoSe2均匀层中谷间Trions的电操纵

Advanced Physics Research Pub Date : 2025-02-09 DOI: 10.1002/apxr.202400135

Bárbara L. T. Rosa, Paulo E. Faria Junior, Alisson R. Cadore, Yuhui Yang, Aris Koulas-Simos, Chirag C. Palekar, Seth Ariel Tongay, Jaroslav Fabian, Stephan Reitzenstein

{"title":"Electrical Manipulation of Intervalley Trions in Twisted MoSe2 Homobilayers at Room Temperature","authors":"Bárbara L. T. Rosa, Paulo E. Faria Junior, Alisson R. Cadore, Yuhui Yang, Aris Koulas-Simos, Chirag C. Palekar, Seth Ariel Tongay, Jaroslav Fabian, Stephan Reitzenstein","doi":"10.1002/apxr.202400135","DOIUrl":"https://doi.org/10.1002/apxr.202400135","url":null,"abstract":"The impressive physics and applications of intra- and interlayer excitons in a transition metal dichalcogenide twisted-bilayer make these systems compelling platforms for exploring the manipulation of their optoelectronic properties through electrical fields. This work studies the electrical control of excitonic complexes in twisted MoSe2 homobilayer devices at room temperature. Gate-dependent micro-photoluminescence spectroscopy reveals an energy tunability of several meVs originating from the emission of excitonic complexes. Furthermore, this study investigates the twist-angle dependence of valley properties by fabricating devices with stacking angles of θ ∼ 1°, θ ∼ 4° and θ ∼ 18°. Strengthened by density functional theory calculations, the results suggest that, depending on the twist angle, the conduction band minima and hybridized states at the Q-point promote the formation of intervalley hybrid trions involving the Q-and K-points in the conduction band and the K-point in the valence band. By revealing the gate control of exciton species in twisted homobilayers, these findings open new avenues for engineering multifunctional optoelectronic devices based on ultrathin semiconducting systems.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Progress in Chemical Vapor Deposition of 2D Magnetic Materials 二维磁性材料化学气相沉积研究进展

Advanced Physics Research Pub Date : 2025-02-05 DOI: 10.1002/apxr.202400169

Shuyang Yuan, Yanchang Zhou, Lei Yin, Xintian Wang, Sheng Jiang, Ziyi Song, Yao Wen, Ruiqing Cheng, Jun He

{"title":"Recent Progress in Chemical Vapor Deposition of 2D Magnetic Materials","authors":"Shuyang Yuan, Yanchang Zhou, Lei Yin, Xintian Wang, Sheng Jiang, Ziyi Song, Yao Wen, Ruiqing Cheng, Jun He","doi":"10.1002/apxr.202400169","DOIUrl":"https://doi.org/10.1002/apxr.202400169","url":null,"abstract":"Magnetic 2D materials have gotten significant attention due to their unique low-dimensional magnetism and potential applications in advanced spintronics, providing an perfect platform for investigating magnetic properties at the 2D limit. The chemical vapor deposition (CVD), known for its simplicity and strong controllability, has become a key technique for fabricating ultrathin magnetic nanosheets. This article systematically reviews recent advancements in CVD-grown magnetic 2D materials, focusing on the effects of growth parameters on material morphologies and properties, and analyzing the construction of heterostructures and their role in magnetic regulation. In addition, various magnetic characterization methods are introduced, and potential applications of these materials in spintronic devices are discussed. By summarizing current challenges, the article provides insights into future research directions, emphasizing the need to improve material stability, Curie temperature, and scalable synthesis to enable practical applications of 2D magnetic materials.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioelectronics with Topological Crosslinked Networks for Tactile Perception 生物电子学与触觉感知的拓扑交联网络

Advanced Physics Research Pub Date : 2025-02-04 DOI: 10.1002/apxr.202400165

Mingqi Ding, Pengshan Xie, Johnny C. Ho

{"title":"Bioelectronics with Topological Crosslinked Networks for Tactile Perception","authors":"Mingqi Ding, Pengshan Xie, Johnny C. Ho","doi":"10.1002/apxr.202400165","DOIUrl":"https://doi.org/10.1002/apxr.202400165","url":null,"abstract":"Bioelectronics, which integrate biological systems with electronic components, have attracted significant attention in developing biomimetic materials and advanced hardware architectures to enable novel information-processing systems, sensors, and actuators. However, the rigidity of conjugated molecular systems and the lack of reconfigurability in static crosslinked structures pose significant challenges for flexible sensing applications. Topological crosslinked networks (TCNs) featuring dynamic molecular interactions offer enhanced molecular flexibility and environmentally induced reconfigurability, decoupling the competition between performances. Here, recent advances are summarized in assembly methods of bioelectronics with different TCNs and elaborate ion/electron-transport mechanisms from the perspective of molecular interactions. Decoupling effects can be achieved by comparing distinct TCNs and their respective properties, and an outlook is provided on a new range of neuromorphic hardware with biocompatibility, self-healing, self-powered, and multimodal-sensing capabilities. The development of TCN-based bioelectronics can significantly impact the fields of artificial neuromorphic perception devices, networks, and systems.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400165","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamically Encircling Multiple Exceptional Points in Waveguides System: Asymmetric–symmetric Multimode Switching 动态包围波导系统中的多个异常点：非对称-对称多模开关

Advanced Physics Research Pub Date : 2025-02-02 DOI: 10.1002/apxr.202400078

Xiaoxiao Wang, Huixin Qi, Yandong Li, Xiaoyong Hu, Xingyuan Wang, Qihuang Gong

{"title":"Dynamically Encircling Multiple Exceptional Points in Waveguides System: Asymmetric–symmetric Multimode Switching","authors":"Xiaoxiao Wang, Huixin Qi, Yandong Li, Xiaoyong Hu, Xingyuan Wang, Qihuang Gong","doi":"10.1002/apxr.202400078","DOIUrl":"https://doi.org/10.1002/apxr.202400078","url":null,"abstract":"Dynamically encircling exceptional points in non-Hermitian systems leads to counterintuitive chiral mode conversions, which provides a new platform for implementing information processing. Previous research has shown that the position of the starting point determines whether the dynamics are chiral or non-chiral. Photonic devices that simultaneously realize chiral and non-chiral mode converters are yet to be investigated. In this letter, a four-state non-Hermitian waveguide array with two exceptional points is presented and the dynamical encirclement of each exceptional point and double exceptional points, which possess chiral and non-chiral dynamics is studied. Encircling a single exceptional point and both exceptional points gives the same outcome but a different encircling process. During non-chiral dynamics, the initial states are not on the Riemann sheet that forms the EPs, encircling both exceptional points produces more branch cuts than encircling a single exceptional point. An asymmetric–symmetric multimode switch at telecommunication wavelengths is demonstrated. Chiral mode converter and non-chiral mode converter can be implemented simultaneously on one photonic device. The research enriches the exploration of the physics associated with multiple exceptional points in non-Hermitian multistate systems and inspires wide applications in on-chip optical systems.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0