Planar efficient metasurface for generation of Bessel beam and super-resolution focusing
Sign Up to like & getrecommendations! Published in 2021 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-021-02765-7
Abstract: In this paper, we propose a device generating Bessel beam that can assist microscope to enhance resolution of microscope to λ/3. As the conventional optical devices of generating Bessel beam have some drawbacks, such as… read more here.
Keywords: plane axicons; resolution; beam; bessel beam ... See more keywords
Phase Profile in Superposition of Bessel Beam Modulates Local Axial Optical Force on Rayleigh and Mie Dielectric Spheres
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.167032
Abstract: Abstract Manipulating small objects with the optical force has benefitted various fields ranging from nano/micro-patterning techniques to bio-applications. In this paper, we theoretically study the modulation of the local optical force on a Rayleigh or… read more here.
Keywords: phase profile; bessel beam; optical force; force ... See more keywords
Engineering an achromatic Bessel beam using a phase-only spatial light modulator and an iterative Fourier transformation algorithm
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.08.050
Abstract: Abstract Bessel illumination is an established method in optical imaging and manipulation to achieve an extended depth of field without compromising the lateral resolution. When broadband or multicolour imaging is required, wavelength-dependent changes in the… read more here.
Keywords: spatial light; fourier transformation; bessel; phase spatial ... See more keywords
Design of TE-polarized resonant Bessel-beam launchers for wireless power transfer links in the radiative near-field region
Sign Up to like & getrecommendations! Published in 2024 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s1759078723001538
Abstract: Abstract Resonant Bessel-beam launchers (BBLs)are radiating devices constituted by a cylindrical metallic cavity with a partially reflecting sheet (PRS) on top. Millimeter-wave resonant BBLs typically exhibit transverse magnetic (TM) polarization due to the use of… read more here.
Keywords: wireless power; resonant bessel; links radiative; power transfer ... See more keywords
Generating millimeter-wave Bessel beam with orbital angular momentum using reflective-type metasurface inherently integrated with source
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5023327
Abstract: Metasurfaces, orbital angular momenta (OAM), and non-diffractive Bessel beams have been attracting worldwide research. Combining the benefits of these three promising techniques, this paper proposes a metasurface-based reflective-type approach to generate a first-order Bessel beam… read more here.
Keywords: source; bessel beam; reflective type; metasurface ... See more keywords
Electron Bessel beam diffraction for precise and accurate nanoscale strain mapping
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5096245
Abstract: Strain has a strong effect on the properties of materials and the performance of electronic devices. Their ever shrinking size translates into a constant demand for accurate and precise measurement methods with very high spatial… read more here.
Keywords: strain; bessel beam; beam diffraction; electron bessel ... See more keywords
Electron beam guiding by a laser Bessel beam
Sign Up to like & getrecommendations! Published in 2018 at "Physical review accelerators and beams"
DOI: 10.1103/physrevaccelbeams.23.081301
Abstract: We formulate the set of equations that describe the trajectories of electrons counter-propagating along a radially polarized optical Bessel beam (OBB). It is shown that a significant fraction of the electrons can be transversally trapped… read more here.
Keywords: beam guiding; guiding laser; bessel beam; electron beam ... See more keywords
Bessel Beam Generation Using Dielectric Planar Lenses at Millimeter Frequencies
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3040898
Abstract: In this work a dielectric planar lens is proposed to generate a Bessel beam. The lens works at Ka-band and produces a non-diffraction range within the Fresnel region of the antenna. The methodology to design… read more here.
Keywords: dielectric planar; beam generation; beam; bessel beam ... See more keywords
Scattering Characteristics of an Electrically-Large Aircraft Object Illuminated by Bessel Vortex Beams
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3224013
Abstract: Based on the excellent and broad prospect of the vortex beams in military application, it is necessary to evaluate the scattering characteristics of classical Bessel beam upon a perfect electrical conductor (PEC) blunt cone model… read more here.
Keywords: scattering characteristics; characteristics electrically; bessel beam; bessel ... See more keywords
Wideband Circularly Polarized High-Order Bessel Beam Reflectarray Design Using Multiple-Ring-Cascade Elements
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2020.2995936
Abstract: In this letter, a wideband circularly polarized high-order Bessel beam reflectarray composed of 30×30 elements with different spatial orientations is proposed. The element is formed by a multiple-ring-cascade structure printed on the top surface of… read more here.
Keywords: order bessel; high order; beam; bessel beam ... See more keywords
Nonlinear-Compensation High-Uniformity Pulsed Bessel Beam in the Transparent Material
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2023.3274991
Abstract: Ultrashort pulse Bessel beams have gained attention for their ability to process high aspect ratio structures with precision drilling and cutting. However, focusing the beam inside transparent materials can lead to local stretching or compression… read more here.
Keywords: beam; material; bessel beam; high uniformity ... See more keywords