Theory of singular-phase reconstruction for an optical speckle field in the turbulent atmosphere

Aksenov, V. P.; Tikhomirova, O. V.

doi:10.1364/josaa.19.000345

Cited by 27 publications

(17 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This method has been used for measuring small displacements and also in fluid dynamics. In the [68], a similar problem for a laser beam probing the atmosphere was solved. The obtained speckle pattern was investigated through the optical vortex localization.…”

Section: Vortex Lattices From Spherical Wavesmentioning

confidence: 99%

Interferometry with Vortices

Senthilkumaran

Masajada

Sato

2012

International Journal of Optics

View full text Add to dashboard Cite

Interference of optical beams with optical vortices is often encountered in singular optics. Since interferometry makes the phase observable by intensity measurement, it brings out a host of applications and helps to understand the optical vortex. In this article we present an optical vortex interferometer that can be used in optical testing and has the potential to increase the accuracy of measurements. In an optical vortex interferometer (OVI), a lattice of vortices is formed, and the movement of the cores of these vortices is tracked when one of the interfering beams is deformed. Instead of multiple vortices in an OVI, an isolated single vortex also finds applications in optical testing. Finally, singularity in scalar and vector fields is presented, and the relation between them is illustrated by the superposition of these beams.

show abstract

Section: Vortex Lattices From Spherical Wavesmentioning

confidence: 99%

Interferometry with Vortices

Senthilkumaran

Masajada

Sato

2012

International Journal of Optics

View full text Add to dashboard Cite

show abstract

“…We consider the initial field U 0 (ρ ρ ρ ρ) in the form of a collimated Gaussian beam with an effective size a and R = 2a. In this case, the components of the vector field of directions of diffracted rays in the beam behind the astigmatic plate are determined numerically with allowance made for relations (11), (13) and presentation L ⊥ = Im{U * ∇ ⊥ U} for the Poynting-vector components:…”

Section: Models Of a Source Of A Singular Wave Fieldmentioning

confidence: 99%

Spatial dynamics and statistics of optical vortices at optical beam propagation in turbulent atmosphere

Aksenov

2002

SPIE Proceedings

Self Cite

View full text Add to dashboard Cite

Regularities of appearance and evolution of optical vortices (wave-front dislocations) in the light field of laser beam in the inhomogeneous refractive medium are studied with the use of simple field models. We associate a dynamic system for the intensity and phase transformation with the parabolic equation describing the light propagation. Redistribution of energy fluxes when appearance and annihilation of the dislocations is considered in the phase space of this system. The hydrodynamics approach to the dislocation problem based on an analogy of the phase gradient vector field to the liquid flow vector field is developed in the paper. Novel method to calculate the dislocation statistical characteristics in the turbulent atmosphere is proposed on the base of the before-derived equation connecting the phase vortex density and intensity spatial distribution.

show abstract

“…Оптические вихри возникают спонтанно: они сопро-вождают формирование спеклов при рассеянии лазер-ных пучков на шероховатой поверхности при распро-странении когерентного света в турбулентной атмосфе-ре [4] или возникают во время лазерной генерации [5,6]. Их генерируют преднамеренно [7], получая вихревые пучки на выходе из лазерного резонатора, конвертируя фундаментальный гауссов пучок в вихревой пучок вне лазерного резонатора или применяя когерентную ком-бинацию пучков [8,9].…”

Section: Introductionunclassified