Trajectory-based interpretation of laser light diffraction by a sharp edge
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 linesSource:
Journal of Russian Laser Research, 2018, 39, 5, 438-447Publisher:
- Springer New York LLC
Funding / 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
Collections
Institution/Community
GraFarTY - JOUR AU - Davidović, Milena AU - Davidović, Milos D. AU - Sanz, Angel S. AU - Božić, Mirjana AU - Vasiljević, Darko PY - 2018 UR - https://grafar.grf.bg.ac.rs/handle/123456789/983 AB - 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. PB - Springer New York LLC T2 - Journal of Russian Laser Research T1 - Trajectory-based interpretation of laser light diffraction by a sharp edge EP - 447 IS - 5 SP - 438 VL - 39 DO - 10.1007/s10946-018-9738-9 ER -
@article{ author = "Davidović, Milena and Davidović, Milos D. and Sanz, Angel S. and Božić, Mirjana and Vasiljević, Darko", year = "2018", 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.", publisher = "Springer New York LLC", journal = "Journal of Russian Laser Research", title = "Trajectory-based interpretation of laser light diffraction by a sharp edge", pages = "447-438", number = "5", volume = "39", doi = "10.1007/s10946-018-9738-9" }
Davidović, M., Davidović, M. D., Sanz, A. S., Božić, M.,& Vasiljević, D.. (2018). Trajectory-based interpretation of laser light diffraction by a sharp edge. in Journal of Russian Laser Research Springer New York LLC., 39(5), 438-447. https://doi.org/10.1007/s10946-018-9738-9
Davidović M, Davidović MD, Sanz AS, Božić M, Vasiljević D. Trajectory-based interpretation of laser light diffraction by a sharp edge. in Journal of Russian Laser Research. 2018;39(5):438-447. doi:10.1007/s10946-018-9738-9 .
Davidović, Milena, Davidović, Milos D., Sanz, Angel S., Božić, Mirjana, Vasiljević, Darko, "Trajectory-based interpretation of laser light diffraction by a sharp edge" in Journal of Russian Laser Research, 39, no. 5 (2018):438-447, https://doi.org/10.1007/s10946-018-9738-9 . .