Orbital angular momentum of the vortex laser beams in a turbulent atmosphere: Numerical modeling and asymptotic theory

2016 ◽  
Author(s):  
V. P. Aksenov ◽  
V. V. Kolosov ◽  
G. A. Filimonov ◽  
C. E. Pogutsa
Keyword(s):  
Numerical Modeling ◽  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Turbulent Atmosphere ◽  
Asymptotic Theory ◽  
Laser Beams

scholarly journals Astigmatic laser beams with a large orbital angular momentum

2018 ◽  
Vol 26 (1) ◽  
pp. 141 ◽  
Author(s):  
Victor V. Kotlyar ◽  
Alexey A. Kovalev ◽  
Alexey P. Porfirev
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Laser Beams

Microobject manipulations using laser beams with nonzero orbital angular momentum

Laser Physics ◽  
2006 ◽  
Vol 16 (5) ◽  
pp. 842-848 ◽  
Author(s):  
E. G. Abramochkin ◽  
S. P. Kotova ◽  
A. V. Korobtsov ◽  
N. N. Losevsky ◽  
A. M. Mayorova ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Laser Beams

scholarly journals Asymmetric hypergeometric laser beams

2019 ◽  
Vol 43 (5) ◽  
pp. 735-740
Author(s):  
V.V. Kotlyar ◽  
A.A. Kovalev ◽  
E.G. Abramochkin
Keyword(s):  
Exact Solution ◽  
Angular Momentum ◽  
Hypergeometric Function ◽  
Orbital Angular Momentum ◽  
Topological Charge ◽  
Optical Axis ◽  
Type Equation ◽  
Laser Beams ◽  
Propagation Equation ◽  
Degenerate Hypergeometric Function

Here we study asymmetric Kummer beams (aK-beams) with their scalar complex amplitude being proportional to the Kummer function (a degenerate hypergeometric function). These beams are an exact solution of the paraxial propagation equation (Schrödinger-type equation) and obtained from the conventional symmetric hypergeometric beams by a complex shift of the transverse coordinates. On propagation, the aK-beams change their intensity weakly and rotate around the optical axis. These beams are an example of vortex laser beams with a fractional orbital angular momentum (OAM), which depends on four parameters: the vortex topological charge, the shift magnitude, the logarithmic axicon parameter and the degree of the radial factor. Changing these parameters, it is possible to control the beam OAM, either continuously increasing or decreasing it.

scholarly journals Simultaneous measurement of orbital angular momentum spectra in a turbulent atmosphere without probe beam compensation

2021 ◽  
Vol 29 (19) ◽  
pp. 30666
Author(s):  
Hui Zhang ◽  
Wenjie Zheng ◽  
Guochen Zheng ◽  
Peng Fu ◽  
Jun Qu ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Probe Beam ◽  
Simultaneous Measurement ◽  
Turbulent Atmosphere ◽  
Momentum Spectra
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