Structured light carrying orbital angular momentum(OAM)opens up a new physical dimension for studying light–matter *** this,the complex fields created by OAM beams still remain largely unexplored in terms of their ef...
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Structured light carrying orbital angular momentum(OAM)opens up a new physical dimension for studying light–matter *** this,the complex fields created by OAM beams still remain largely unexplored in terms of their effects on surface *** paper presents a revelation of anomalous plasmon excitations in single particles and plasmon couplings of neighboring nanorods under OAM beams,which are forbidden using non-OAM *** plasmon excitation of single nanoparticles is determined both by photon spin angular momentum(SAM)and OAM and influenced by the locations of the ***,when SAM and OAM are equal in magnitude and opposite in direction,a pure plasmon excitation along light propagation direction is *** plasmon dipoles show end-to-end antibonding coupling and side-by-side bounding coupling,which are the opposite of the typical ***,we observe Fano resonance with a nanorod dimer:one aligned along light propagation direction acting as the bright mode and the other aligned along the global polarization direction of light acting as the dark mode,which is the opposite of the usual plasmonic Fano *** taking advantage of the unique property of the OAM source,this investigation presents a novel way to control and study surface plasmons,and the research of plasmon behavior with OAM would open new avenues for controlling electromagnetic waves and enriching the spectroscopies with more degrees of freedom.
This paper quantitatively evaluated the fatigue life of concrete around the air-water boundary layer of bridge piers located in inland rivers,considering the long-term *** paper suggests a method to predict the low-cy...
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This paper quantitatively evaluated the fatigue life of concrete around the air-water boundary layer of bridge piers located in inland rivers,considering the long-term *** paper suggests a method to predict the low-cycle fatigue life by demonstrating a thermal-fluid-structural analysis of bridge pier concrete according to long-term climate such as temperature,velocity and pressure of air and water in the process of freezing and thawing in *** addition,it proposes a reinforcing method to increase the life of damaged piers and proves the feasibility of the proposed method with numerical comparison experiment.
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