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Trajectory-based interpretation of laser light diffraction by a sharp edge

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2018
Authors
Davidović, Milena
Davidović, Milos D.
Sanz, Angel S.
Božić, Mirjana
Vasiljević, Darko
Article (Published version)
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Abstract
In the diffraction pattern produced by a half-plane sharp edge when it obstructs the passage of a laser beam, two characteristic regions are noticeable. There is a central region, where the diffraction of laser light appears in the region of geometric shadow, while intensity oscillations are observed in the non-obstructed area. On both sides of the edge, there are also very long light traces along the normal to the edge of the obstacle. The theoretical explanation of this phenomenon is based on the Fresnel-Kirchhoff diffraction theory applied to the Gaussian beam propagation behind the obstacle. In this paper, we supplement this explanation by considering electromagnetic flow lines, which provide a more complete interpretation of the phenomenon in terms of electric and magnetic fields and flux lines; at the same time, that can be related to average photon paths.
Keywords:
Diffraction on the half-plane / Bohmian mechanics / Gaussian beam / electromagnetic energy flow lines
Source:
Journal of Russian Laser Research, 2018, 39, 5, 438-447
Publisher:
  • Springer New York LLC
Projects:
  • Fabrication and characterization of nano-photonic functional structrues in biomedicine and informatics (RS-45016)
  • A new approach to foundational problems of quantum mechanics related to applications in quantum technologies and interpretations of signals of various origins (RS-171028)
  • Spanish MINECO FIS2016-76110-P

DOI: 10.1007/s10946-018-9738-9

ISSN: 1071-2836

WoS: 000450488400003

Scopus: 2-s2.0-85055987582
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URI
http://grafar.grf.bg.ac.rs/handle/123456789/983
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  • Катедра за математику, физику и нацртну геометрију
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