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17 December 2013 Three dimensional point spread function of an optical system and its approximation
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Proceedings Volume 9066, Eleventh International Conference on Correlation Optics; 90660O (2013) https://doi.org/10.1117/12.2051154
Event: Eleventh International Conference on Correlation Optics, 2013, Chernivsti, Ukraine
Abstract
The paper presents the mathematical technique for precise calculation of the three dimensional point spread function (3D PSF) of an optical system. The proposed technique is based on the Huygens-Fresnel principle: a spherical wave at an exit pupil is considered as a numerous set of elementary secondary light sources. They emit spherical coherent electro-magnetic waves. All these waves form a definite distribution of summarized complex amplitudes in a three dimensional space near a focal point. This distribution is used for calculation of the distribution of effective intensity which takes into account inclinations of optical beams. The possible approximations of the 3D PSF are discussed. The results of calculations of 3D PSF using the precise and approximated expressions are compared.
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Volodymyr Borovytsky, Viktoriia Chorna, and Andrey Fesenko "Three dimensional point spread function of an optical system and its approximation ", Proc. SPIE 9066, Eleventh International Conference on Correlation Optics, 90660O (17 December 2013); https://doi.org/10.1117/12.2051154
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