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Atmospheric turbulence temperature on the laser wavefront properties

Acceso Abierto
ID Minciencias: ART-0000107468-30979
Ranking: ART-GC_ART

Abstract:

Temperature is a physical magnitude that if is higher, the refractive index presents more important random fluctuations, which produce a greater distortion in the wavefront and thus a displacement in its centroid. To observe the effect produced by the turbulent medium strongly influenced by temperature on propagation laser beam, we experimented with two variable and controllable temperature systems designed as optical turbulence generators (OTG): a Turbulator and a Parallelepiped glass container. The experimental setup use three CMOS cameras and four temperature sensors spatially distributed to acquire synchronously information of the laser beam wavefront and turbulence temperature, respectively. The acquired information was analyzed with MATLAB® software tool, that it allows to compute the position, in terms of the evolution time, of the laser beam center of mass and their deviations produced by different turbulent conditions generated inside the two manufactured systems. The results were reflected in the statistical analysis of the centroid shifting.

Tópico:

Adaptive optics and wavefront sensing

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Citations: 2
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Información de la Fuente:

SCImago Journal & Country Rank
FuenteJournal of Physics Conference Series
Cuartil año de publicaciónNo disponible
Volumen850
IssueNo disponible
Páginas012001 - 012001
pISSNNo disponible
ISSN1742-6596

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