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A new approach for determination of a mean speckle size insimulated speckle pattern
- 1.0463817 - FZÚ 2017 RIV GB eng J - Journal Article
Hamarová, Ivana - Horváth, P. - Šmíd, Petr - Hrabovský, M.
A new approach for determination of a mean speckle size insimulated speckle pattern.
Measurement. Roč. 88, Jun (2016), s. 271-277. ISSN 0263-2241. E-ISSN 1873-412X
R&D Projects: GA MŠMT(CZ) LG13007; GA ČR GA13-12301S
Institutional support: RVO:68378271
Keywords : simulation * speckle pattern * mean speckle size * one-dimensional autocorrelation function
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 2.359, year: 2016
In this paper one-dimensional correlation method for determination of a mean speckle size is used, while two various approaches are presented. It is shown, that accuracy of the measurement by the method depends on a number of speckles in an evaluated onedimensional intensity profile of detected speckle pattern. It is also shown, that a significant optimization of the method by reduction of a number of intensity values representing detected speckle patterns can be performed. This study is carried out for several speckle patterns generated through a numerical simulation of the speckle fields after reflection of a Gaussian beam off a rough object’s surface. Results of the determination of the mean speckle size are compared with theoretical predictions.
Permanent Link: http://hdl.handle.net/11104/0262917
Number of the records: 1