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Open AccessFeature PaperArticle

New Theoretical Model of the Irradiance Distribution in Water from a Unidirectional Point Source

Institute of Applied Physics of the Russian Academy of Sciences, 46 Uljanova St., Nizhny Novgorod 603950, Russia
J. Mar. Sci. Eng. 2020, 8(2), 79; https://doi.org/10.3390/jmse8020079
Received: 29 November 2019 / Revised: 7 January 2020 / Accepted: 21 January 2020 / Published: 25 January 2020
(This article belongs to the Special Issue Light Fields in the Ocean from Natural and Artificial Sources)
Formulas are presented for calculating the irradiance field, which is formed in a turbid medium with a narrow scattering phase function and homogeneous optical properties when an infinitely narrow light beam passes through it. The calculations are based on a new mathematical model of the stationary radiation field of an omnidirectional point source and relationships enabling one to represent the irradiance distribution in a continuous or modulated light beam through this field. The obtained formulas, in contrast to the previously known ones, permit taking into account the temporal spreading of a pulsed light beam in the sea without a significant decrease in the accuracy of describing its spatial structure. View Full-Text
Keywords: underwater light fields; beam spread function; small-angle multiple scattering; distortions of a laser pulse underwater light fields; beam spread function; small-angle multiple scattering; distortions of a laser pulse
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Dolin, L.S. New Theoretical Model of the Irradiance Distribution in Water from a Unidirectional Point Source. J. Mar. Sci. Eng. 2020, 8, 79.

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