Results 1 to 10 of about 78,429 (116)
Tip-Enhanced Raman Spectroscopy with High-Order Fiber Vector Beam Excitation [PDF]
Sensors, 2018 We investigated tip-enhanced Raman spectra excited by high-order fiber vector beams. Theoretical analysis shows that the high-order fiber vector beams have stronger longitudinal electric field components than linearly polarized light under tight focusing
Fanfan Lu +8 more
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Vector Beam Polarization State Spectrum Analyzer [PDF]
Scientific Reports, 2017 We present a proof of concept for a vector beam polarization state spectrum analyzer based on the combination of a polarization diffraction grating (PDG) and an encoded harmonic q-plate grating (QPG).
Ignacio Moreno +5 more
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Photonic nanojet generated by a spheroidal particle illuminated by a vector Bessel beam
Results in Optics, 2021 The photonic nanojet (PNJ) produced by a vector Bessel beam irradiating a dielectric spheroidal particle is investigated using the Discrete Dipole Approximation. The influence of the beam center, beam order, beam polarization type, and half cone angle of
Yongjie Jia +3 more
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Dielectric Metalens for Superoscillatory Focusing Based on High-Order Angular Bessel Function
Nanomaterials, 2022 The phenomenon of optical superoscillation provides an unprecedented way to solve the problem of optical far-field label-free super-resolution imaging.
Yu Li +6 more
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Transverse intensity at the tight focus of a second-order cylindrical vector beam
Компьютерная оптика, 2021 In this paper, an effect of a reverse energy flow at the focus of a second-order cylindrical vector beam which passed through amplitude zone plate was investigated with a scanning near-field optical microscope.
E.S. Kozlova +4 more
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Nanomaterials, 2021 The trefoil and cinquefoil vector field are of essential significance for fundamental topology properties as the Hopf link and trefoil knots in the light field.
Rui Sun +9 more
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Observation of the Rotational Doppler Effect With Structured Beams in Atomic Vapor
Frontiers in Physics, 2022 A vector beam with the spatial variation polarization has attracted keen interest and is progressively applied in quantum information, quantum communication, precision measurement, and so on.
Shuwei Qiu +6 more
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Photonics, 2023 The phase and polarization of electromagnetic waves can be conveniently manipulated by the dynamic phase and geometric phase elements. Here, we propose a compact optical integration of dynamic phase and geometric phase to generate arbitrary vector vortex
Kuiming Zeng +3 more
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Frontiers in Physics, 2021 The spatiotemporal vector Airy-Circular Airy Gaussian vortex wave packet is constructed by solving the (3 + 1)D Schrodinger equation in free space. The wave packet can simultaneously autofocus in space and time by setting the appropriate initial pulse ...
Dong Li +4 more
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Three-dimensional acoustic vector field model using Gaussian beam tracing [PDF]
JASA Express Letters, 2023 A three-dimensional acoustic vector field model was developed using Gaussian beam tracing. The field at any location is computed by coherently summing all contributing beams, where the beam equation of particle velocity depends only on beam width and ...
Yuchen Chen, Minghui Zhang, Lijia Gong
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