- Abstract:
-
We calculate the gradient of the radiation field generated by a polarization current with a superluminally rotating distribution pattern and show that the absolute value of this gradient increases as R(7/2) with distance R, within the sharply focused subbeams that constitute the overall radiation beam from such a source. In addition to supporting the earlier finding that the azimuthal and polar widths of these subbeams become narrower (as R(-3) and R(-1), respectively) with distance from the ...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1364/josaa.25.000543
-
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- Publisher:
- Optical Society of American (OSA)
- Journal:
- Journal of the Optical Society of America. A, Optics, image science, and vision
- Volume:
- 25
- Issue:
- 3
- Pages:
- 543-557
- Publication date:
- 2008-03-05
- DOI:
- EISSN:
-
1520-8532
- ISSN:
-
1084-7529
- URN:
-
uuid:23111443-44a1-405d-bc93-1517675682b7
- Source identifiers:
-
25909
- Local pid:
- pubs:25909
- Language:
- English
- Copyright date:
- 2008
Journal article
Fundamental role of the retarded potential in the electrodynamics of superluminal sources.
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