alexa A Study on atmospheric turbulence with Shearing Interf
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article

A Study on atmospheric turbulence with Shearing Interferometer wavefront sensor

M.Mohamed Ismail1, M.Mohamed Sathik 2.
  1. Research Scholar, Department of Computer Science, Sadakathullah Appa College, Tirunelveli, Tamilnadu, India
  2. Principal, Sadakathullah Appa College, Tirunelveli, Tamilnadu, India.
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When a light beam propagates through the turbulent atmosphere, the wavefront of the beam is distorted, which affect the image quality of ground based telescopes. Adaptive optics is a means for real time compensation of the wavefront distortions. In an adaptive optics system, wavefront distortions are measured by a wavefront sensor, and then using an active optical element such as a deformable mirror the instantaneous wavefront distortions are corrected. In this paper, the physical background of imaging through turbulence, using Kolmogorov statistics, and the Polarization Shearing Interferometry techniques to sense and to correct the wavefront aberrations with adaptive optics have been discussed. Simulations of the interferometric records were carried out using Matlab for the study of aberrations in an optical system and the effect of the atmospheric turbulence in the interferograms. The data was reduced from the interferogram using Fourier Transform Technique and the wavefront was reconstructed from the wavefront slope data


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