0436688 - FZÚ 2015 RIV SK eng J - Článek v odborném periodiku
Hamarová, Ivana - Šmíd, Petr - Horvath, P. - Hrabovský, M.
Methods for determination of mean speckle size in simulated speckle pattern.
Measurement Science Review. Roč. 14, č. 3 (2014), 177-182. ISSN 1335-8871. E-ISSN 1335-8871
Grant CEP: GA ČR GA13-12301S
Institucionální podpora: RVO:68378271
Klíčová slova: simulation * speckle * speckle pattern * mean speckle size * autocorrelation function
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 0.989, rok: 2014 ; AIS: 0.172, rok: 2014
DOI: https://doi.org/10.2478/msr-2014-0024

This paper deals with computation of mean speckle size in a speckle pattern generated through a numerical simulation of speckle after reflection of a Gaussian beam off a rough object's surface. Within this simulation various speckle patterns are obtained by means of change in a parameter of the Gaussian beam. The mean speckle size is computed through two approaches using both the two-dimensional and the one-dimensional normalized autocorrelation function in intensity. Additionally, we propose a distinct optimization of the determination of the mean speckle size by reduction of intensity values representing detected speckle patterns. Results of the determination of the mean speckle size are compared with theoretical predictions.
Trvalý link: http://hdl.handle.net/11104/0240360