Results 1 to 10 of about 1,171,647 (287)

Harnessing of inhomogeneously polarized Hermite–Gaussian vector beams to manage the 3D spin angular momentum density distribution [PDF]

open access: yesNanophotonics, 2021
We propose vector modes based on inhomogeneously polarized Hermite–Gaussian (HG) vector beams, providing complete structural conservation of the beams during propagation.
Khonina Svetlana N., Porfirev Aleksey P.
doaj   +2 more sources

Optical Force Effects of Rayleigh Particles by Cylindrical Vector Beams [PDF]

open access: yesNanomaterials
High-order cylindrical vector beams possess flexible spatial polarization and exhibit new effects and phenomena that can expand the functionality and enhance the capability of optical systems.
Yuting Zhao   +4 more
doaj   +2 more sources

Experimental generation of arbitrary abruptly autofusing Circular Airy Gaussian vortex vector beams [PDF]

open access: yesScientific Reports, 2022
Complex vector modes represent a general state of light nonseparable in their spatial and polarization degrees of freedom, which have inspired a wide variety of novel applications and phenomena, such as their unexpected propagation behaviour. For example,
Xiao-Bo Hu   +3 more
doaj   +2 more sources

Tight focusing of fractional-order topological charge vector beams by cascading metamaterials and metalens [PDF]

open access: yesMicrosystems & Nanoengineering
Vector beams have attracted widespread attention because of their unique optical properties; in particular, their combination with tight focusing can produce many interesting phenomena.
Lan Ke   +9 more
doaj   +2 more sources

Polarization singularities in superposition of vector beams

open access: yesOptics Express, 2013
We present a systematic study of the superposition of two vector Laguerre-Gaussian (LG) beams. Propagation depended field distribution obtained from the superposition of two vector LG beams has many interesting features of intensity and polarization.
Shunichi Sato   +2 more
exaly   +3 more sources

The Poynting vector and angular momentum of Airy beams

open access: yesOptics Express, 2008
We analyze and describe the evolution of the Poynting vector and angular momentum of the Airy beam as it propagates through space. A numerical approach is used to show the Poynting vector follows the tangent line of the direction of propagation. A similar approach is used to show that while the total angular momentum of the Airy beam is zero, the ...
R R Alfano
exaly   +3 more sources

Generation of vector beams with different polarization singularities based on metasurfaces

open access: yesNew Journal of Physics, 2022
In view of wide applications of vector beams and powerful light manipulation ability of metasurfaces, this paper studies the generation of two kinds of vector beams with different polarization singularities based on metasurfaces. One kind of vector beams
Danhua Liu   +5 more
doaj   +1 more source

Vector polymorphic beam [PDF]

open access: yesScientific Reports, 2018
AbstractA scalar polymorphic beam is designed with independent control of its intensity and phase along a strongly focused laser curve of arbitrary shape. This kind of beam has been found crucial in the creation of freestyle laser traps able to confine and drive the motion of micro/nano-particles along reconfigurable 3D trajectories in real time. Here,
José A. Rodrigo, Tatiana Alieva
openaire   +3 more sources

Vector beams encoded by diverse orthogonal polarization states and their generation based on metasurfaces

open access: yesNew Journal of Physics, 2023
Vector beams with spatially varying polarization states have wide application prospects. Convenient and feasible generation of compact vector beams become important for the applications in integrated optics and optical communication.
Zhiyuan Yue   +4 more
doaj   +1 more source

Depolarization of Vector Light Beams on Propagation in Free Space

open access: yesPhotonics, 2022
Nonparaxial propagation of the vector vortex light beams in free space was investigated theoretically. Propagation-induced polarization changes in vector light beams with different spatial intensity distributions were analyzed.
Nikolai Petrov
doaj   +1 more source

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