Using the Cornu spiral to analyze the energy flux density of electromagnetic radiation in the geometric shadow cast by a protective shield

Matveev, S.A., Sotnikova, N.V., Strakhov, S.Y.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Страхов С.Ю., Матвеев С.А., Сотникова Н.В. Применение спирали Корню для анализа плотности потока энергии электромагнитного излучения в области геометрической тени при проектировании защитных экранов // Оптический журнал. 2020. Т. 87. № 4. С. 78–84. http://doi.org/10.17586/1023-5086-2020-87-04-78-84

Strakhov S.Yu., Matveev S.A., Sotnikova N.V. Using the Cornu spiral to analyze the energy flux density of electromagnetic radiation in the geometric shadow cast by a protective shield [in Russian] // Opticheskii Zhurnal. 2020. V. 87. № 4. P. 78–84. http://doi.org/10.17586/1023-5086-2020-87-04-78-84

For citation (Journal of Optical Technology):

S. Yu. Strakhov, S. A. Matveev, and N. V. Sotnikova, "Using the Cornu spiral to analyze the energy flux density of electromagnetic radiation in the geometric shadow cast by a protective shield," Journal of Optical Technology. 87(4), 250-254 (2020). https://doi.org/10.1364/JOT.87.000250

Abstract:

This paper discusses the effect of edge diffraction on radiation intensity in the projected geometric shadow of a protective shield. We also discuss the use of the Cornu spiral to determine the energy flux density of radiation, and this procedure was adapted to perform engineering calculations. Approximate equations are provided for calculation of the basic electromagnetic field parameters in the case where the radiation is diffracted by the edge of a semi-infinite plane, and the radiation intensity behind the protective shield was estimated using this procedure. The practical value of the procedure proposed in this paper is that it enables the dimensions of the protective shield to be determined without complex calculations using specialized software.

Keywords:

diffraction by the edge of a semi-infinite plane, projected geometric shadow, Cornu spiral, energy flux density, electromagnetic radiation, protective shield

Acknowledgements:

This work was performed under Russian Federation Government Decree 218 (PROJECT 218) of 9 April 2010 as part of scientific R&D work performed with the financial support of the Russian Federation Ministry of Education and Science (Contract No. 03.G25.31.0294 of 13 July 2018). This work was performed at the lead scientific R&D organization, the D. F. Ustinov VOENMEKH Baltic State Technical University.

OCIS codes: 050.1755, 050.1940

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