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Application of speckle decorrelation method for small translation measurements

Horváth P., Hrabovský M., Šmíd P.

Optica Applicata

2004

Vol. 34, nr 2

203-218

This paper analyses the usage of the speckle pattern decorrelation method for determination of small static and dynamic object translations. At first the philosophy of the method is presented briefly. Then relationships between the cross-correlation function and the small deformation tensor for the case of optically free space and image field are mentioned. Next, different experimental arrangements for the measurement of in-plane and normal object translations are analysed. Possible measurement ranges and sensitivities for each arrangement are discussed, too. Finally, some results of our experiments are shown

Thin glass mirors for the Pierre Auger Project

Vlček M., Schovánek P., Palatka M., Hrabovský M.

Optica Applicata

2003

Vol. 33, nr 4

689-693

The Joint Laboratory of Optics produces mirrors for fluorescence optical detector of the Pierre Auger Project situated in Argentina. We want to resume our manufacturing quality measurements and compare the first two telescopes made with the prototype one. We measure the radius of curvature, spot size and reflectivity in ultra-violet region.