Understanding the relationship between plasmon near-field enhancement and lifetime is crucial for various applications,yet their inverse correlation in single-element nanoresonators remains underexplored.Here,we exper...Understanding the relationship between plasmon near-field enhancement and lifetime is crucial for various applications,yet their inverse correlation in single-element nanoresonators remains underexplored.Here,we experimentally demonstrate an inverse correlation between these two parameters in single-element gold lateral V-shaped nanoresonators under different light polarization conditions by tuning the opening angle,through femtosecond time-resolved photoemission electron microscopy.Specifically,under p-polarized light irradiation,as the opening angle of V-shaped nanoresonators decreases,the plasmon near-field enhancement increases while the lifetime shortens simultaneously.展开更多
Single-phase ordered body-centered cubic or B2 multi-principal element intermetallics(MPEIs)have garnered significant attention due to their exceptional mechanical and functional properties.However,their discovery in ...Single-phase ordered body-centered cubic or B2 multi-principal element intermetallics(MPEIs)have garnered significant attention due to their exceptional mechanical and functional properties.However,their discovery in complex compositional spaces is challenging due to the lack of high-dimensional phase diagrams and the inefficiency of traditional trial-and-error methods.In this study,we developed a physics-informed machine learning(ML)framework that integrates a conditional variational autoencoder(CVAE)with an artificial neural network(ANN).This approach effectively addresses the challenges of data limitation and imbalance,enabling the high-throughput generation of B2 MPEIs.Using this framework,we successfully identified a wide range of B2 complex alloys,spanning quaternary to senary systems,with superior mechanical performance.This work not only demonstrates a significant advancement in the discovery of B2 MPEIs but also provides an accelerated pathway for their design and development.展开更多
The Journey of the Servants to the Place of Return(Seyr al-‘Ibād ilāal-Ma‘ād)is an allegory mathnavi that suggests a man’s spiritual purification through a deeper understanding of creation,the influence of the p...The Journey of the Servants to the Place of Return(Seyr al-‘Ibād ilāal-Ma‘ād)is an allegory mathnavi that suggests a man’s spiritual purification through a deeper understanding of creation,the influence of the planets,and the four elements on his thoughts and behaviors.Their effect will change a man’s life after his death if he does not control them.By taming the negative traits,he may enjoy the bliss of paradise if he does not control them,and may enter into the fire of hell.This mystical/literary work offers practical methods that may eliminate negative traits in an individual’s soul if he practices them.The poet emphasizes the necessity of following a master who guides the pupil through a spiritual journey to achieve perfection and become one with the Creator.展开更多
基金National Key Research and Development Program of China(2022YFA1604304,2022YFA1604303)National Natural Science Foundation of China(12404356,12374341)+2 种基金Department of Science and Technology of Jilin Province(YDZJ202401607ZYTS)Natural Science Foundation of Chongqing Municipality(CSTB2023NSCQMSX1026,CSTB2023NSCQ-MSX0302,CSTB2023NSCQMSX0708)111 Project(D17017)。
文摘Understanding the relationship between plasmon near-field enhancement and lifetime is crucial for various applications,yet their inverse correlation in single-element nanoresonators remains underexplored.Here,we experimentally demonstrate an inverse correlation between these two parameters in single-element gold lateral V-shaped nanoresonators under different light polarization conditions by tuning the opening angle,through femtosecond time-resolved photoemission electron microscopy.Specifically,under p-polarized light irradiation,as the opening angle of V-shaped nanoresonators decreases,the plasmon near-field enhancement increases while the lifetime shortens simultaneously.
基金supported by university grants council(RGC),the Hong Kong government,through the general research fund(GRF)with the grant numbers of CityU 11201721 and CityU 11202924supported by the National Natural Science Foundation of China(Grant No.U20A20236).
文摘Single-phase ordered body-centered cubic or B2 multi-principal element intermetallics(MPEIs)have garnered significant attention due to their exceptional mechanical and functional properties.However,their discovery in complex compositional spaces is challenging due to the lack of high-dimensional phase diagrams and the inefficiency of traditional trial-and-error methods.In this study,we developed a physics-informed machine learning(ML)framework that integrates a conditional variational autoencoder(CVAE)with an artificial neural network(ANN).This approach effectively addresses the challenges of data limitation and imbalance,enabling the high-throughput generation of B2 MPEIs.Using this framework,we successfully identified a wide range of B2 complex alloys,spanning quaternary to senary systems,with superior mechanical performance.This work not only demonstrates a significant advancement in the discovery of B2 MPEIs but also provides an accelerated pathway for their design and development.
文摘The Journey of the Servants to the Place of Return(Seyr al-‘Ibād ilāal-Ma‘ād)is an allegory mathnavi that suggests a man’s spiritual purification through a deeper understanding of creation,the influence of the planets,and the four elements on his thoughts and behaviors.Their effect will change a man’s life after his death if he does not control them.By taming the negative traits,he may enjoy the bliss of paradise if he does not control them,and may enter into the fire of hell.This mystical/literary work offers practical methods that may eliminate negative traits in an individual’s soul if he practices them.The poet emphasizes the necessity of following a master who guides the pupil through a spiritual journey to achieve perfection and become one with the Creator.
