Results 91 to 100 of about 3,312 (180)

Generation of cylindrical vector beams with few-mode fibers excited by Laguerre–Gaussian beams

, 2004
We propose a novel method to efficiently produce light beams with radial, azimuthal, and hybrid polarization, through a few-mode fiber excited by a Laguerre–Gaussian beam. With different input polarization we can selectively excite different combinations
Volpe, Giovanni, Petrov, D.
core   +1 more source

Generation of pseudo-radially-polarized beams in a diode pumped solid-state laser

A simple technique for directly generating pseudo-radially-polarised or donut-shaped beams in a diode-pumped solid-state laser is presented.
Daniel, J.M.O., Clarkson, W.A.
core  

Focusing a cylindrical vector beam and the Hall effect

Computer Optics
Polarization of a higher-order cylindrical vector beam (CVB) is known to be locally linear. The higher the beam order, the larger number of full circles the local linear polarization vector makes around the optical axis. It is also known that the CVB with radially symmetric amplitude has zero spin angular momentum (SAM) and zero orbital angular ...
V.V. Kotlyar, S.S. Stafeev, A.A. Kovalev, V.D. Zaitsev   +3 more
openaire   +2 more sources

Rigorous analysis on a U-shaped index fiber for generating cylindrical vector beams in an all-fiber format

, 2012
We propose a novel method to generate cylindrical vector beams (CVBs) which can be applied to conventional fiber-laser system configuration. We focus on the relationship between the laser pump power threshold and the power confinement in the high index ...
Hyuntai Kim, Jeong, Y., Yoonchan Jeong, Vazquez-Zuniga, L.A., Luis Alonso Vazquez-Zuniga, Kim, H., Kwon, Y., Youngchul Kwon   +7 more
core   +1 more source

Generation of High-Quality Cylindrical Vector Beams from All-Few-Mode Fiber Laser

Photonics
Transverse mode control of laser intracavity oscillation is crucial for generating high-purity cylindrical vector beams (CVBs). We utilized the mode conversion and mode selection properties of two-mode long-period fiber gratings (TM-LPFGs) and two-mode ...
Pingping Xiao, Zhen Tang, Fei Wang, Yaqiong Lu, Zuxing Zhang   +4 more
doaj   +1 more source

Study on 1064 nm High-Purity, High-Beam-Quality Cylindrical Vector Beams Laser

Photonics
To generate cylindrical vector beams (CVBs) with high mode purity and high beam quality, a polarization-maintaining fiber oscillator was built, followed by high-efficiency mode conversion with an S-waveplate.
Ying Li, Zhaochen Lv, Yu Ding, Qingxuan Li, Nanhui Xia, Chenpeng Deng, Zhenghua Tong, Fushang Liu, Anru Yan, Youqiang Liu, Xuesheng Liu, Zhiyong Wang   +11 more
doaj   +1 more source

Modification of transparent materials by tightly focused annular, radially and azimuthally polarized ultrafast laser beams

Recently, strong longitudinal electric fields have raised great interest in the laser fabrication, microscopy and optical data storage [1]. Here we demonstrate high quality cylindrically polarized annular beam produced by ultrafast laser written ...
Kazansky, P.G., Beresna, M., Gecevičius, M., Zhang, J.   +3 more
core  

Author Correction: Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams. [PDF]

Sci Rep, 2020
Fujita H, Sato M.
europepmc   +1 more source

Vector beams as the superposition of cylindrical partial waves in bianisotropic media

, 2006
The exact solutions for arbitrary electromagnetic beams in bianisotropic media are constructed. The solutions are expressed using tensor Fourier transform whose physical meaning is the superposition of partial waves.
Novitsky, Andrey V., Barkovsky, L. M.
core  

Variable transformation of singular cylindrical vector beams using anisotropic crystals. [PDF]

Sci Rep, 2020
Khonina SN, Porfirev AP, Kazanskiy NL.
europepmc   +1 more source