Phase and interference properties of optical vortex beams

2008 ◽  
Vol 25 (3) ◽  
pp. 823 ◽  
Author(s):  
John Vickers ◽  
Matt Burch ◽  
Reeta Vyas ◽  
Surendra Singh
Keyword(s):  
Optical Vortex ◽  
Vortex Beams

scholarly journals Optical vortex lattice: an exploitation of orbital angular momentum

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Liuhao Zhu ◽  
Miaomiao Tang ◽  
Hehe Li ◽  
Yuping Tai ◽  
Xinzhong Li
Keyword(s):  
Angular Momentum ◽  
Optical Tweezers ◽  
Orbital Angular Momentum ◽  
Vortex Lattice ◽  
Optical Vortex ◽  
Yeast Cells ◽  
Particle Manipulation ◽  
Complex Motion ◽  
Potential Applications ◽  
Vortex Beams

Abstract Generally, an optical vortex lattice (OVL) is generated via the superposition of two specific vortex beams. Thus far, OVL has been successfully employed to trap atoms via the dark cores. The topological charge (TC) on each optical vortex (OV) in the lattice is only ±1. Consequently, the orbital angular momentum (OAM) on the lattice is ignored. To expand the potential applications, it is necessary to rediscover and exploit OAM. Here we propose a novel high-order OVL (HO-OVL) that combines the phase multiplication and the arbitrary mode-controllable techniques. TC on each OV in the lattice is up to 51, which generates sufficient OAM to manipulate microparticles. Thereafter, the entire lattice can be modulated to desirable arbitrary modes. Finally, yeast cells are trapped and rotated by the proposed HO-OVL. To the best of our knowledge, this is the first realization of the complex motion of microparticles via OVL. Thus, this work successfully exploits OAM on OVL, thereby revealing potential applications in particle manipulation and optical tweezers.

Femtosecond laser processing of silver-containing glass with optical vortex beams

2014 ◽  
Author(s):  
Konstantin Mishchik ◽  
Yannick Petit ◽  
Etienne Brasselet ◽  
Inka Manek-Hönninger ◽  
Nicolas Marquestaut ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Optical Vortex ◽  
Femtosecond Laser Processing ◽  
Vortex Beams

Direct generation of optical vortex beams with tunable topological charges up to 18th using an axicon

2021 ◽  
Vol 143 ◽  
pp. 107339
Author(s):  
Ke Li ◽  
Kaifei Tang ◽  
Da Lin ◽  
Jing Wang ◽  
Bingxuan Li ◽  
...  
Keyword(s):  
Optical Vortex ◽  
Vortex Beams ◽  
Direct Generation ◽  
Topological Charges

scholarly journals Strongly Focused Circularly Polarized Optical Vortices Regulated by a Fractal Conical Lens

2019 ◽  
Vol 10 (1) ◽  
pp. 28
Author(s):  
Zhirong Liu ◽  
Kelin Huang ◽  
Anlian Yang ◽  
Xun Wang ◽  
Philip H. Jones
Keyword(s):  
Angular Momentum ◽  
Optical Tweezers ◽  
Numerical Aperture ◽  
Optical Element ◽  
Optical Vortex ◽  
Optical Vortices ◽  
Circularly Polarized ◽  
Strong Focusing ◽  
New Type ◽  
Vortex Beams

In this paper, a recently-proposed pure-phase optical element, the fractal conical lens (FCL), is introduced for the regulation of strongly-focused circularly-polarized optical vortices in a high numerical aperture (NA) optical system. Strong focusing characteristics of circularly polarized optical vortices through a high NA system in cases with and without a FCL are investigated comparatively. Moreover, the conversion between spin angular momentum (SAM) and orbital angular momentum (OAM) of the focused optical vortex in the focal vicinity is also analyzed. Results revealed that a FCL of different stage S could significantly regulate the distributions of tight focusing intensity and angular momentum of the circularly polarized optical vortex. The interesting results obtained here may be advantageous when using a FCL to shape vortex beams or utilizing circularly polarized vortex beams to exploit new-type optical tweezers.

scholarly journals Divergence of optical vortex beams

2015 ◽  
Vol 54 (22) ◽  
pp. 6690 ◽  
Author(s):  
Salla Gangi Reddy ◽  
Chithrabhanu Permangatt ◽  
Shashi Prabhakar ◽  
Ali Anwar ◽  
J. Banerji ◽  
...  
Keyword(s):  
Optical Vortex ◽  
Vortex Beams

Femtosecond laser surface structuring of silicon using optical vortex beams generated by a q-plate

2014 ◽  
Vol 104 (24) ◽  
pp. 241604 ◽  
Author(s):  
K. K. Anoop ◽  
A. Rubano ◽  
R. Fittipaldi ◽  
X. Wang ◽  
D. Paparo ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Optical Vortex ◽  
Laser Surface ◽  
Surface Structuring ◽  
Vortex Beams

scholarly journals Analysis of surface plasmon interference pattern formed by optical vortex beams

2008 ◽  
Vol 16 (22) ◽  
pp. 18451 ◽  
Author(s):  
P. S. Tan ◽  
X.-C. Yuan ◽  
J. Lin ◽  
Q. Wang ◽  
R. E. Burge
Keyword(s):  
Interference Pattern ◽  
Surface Plasmon ◽  
Optical Vortex ◽  
Vortex Beams
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