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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 57, Iss. 10 — Oct. 1, 1967
  • pp: 1171–1175

Energy Flow in the Neighborhood of the Focus of a Coherent Beam

A. BOIVIN, J. Dow, and E. WOLF  »View Author Affiliations


JOSA, Vol. 57, Issue 10, pp. 1171-1175 (1967)
http://dx.doi.org/10.1364/JOSA.57.001171


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Abstract

In a previous paper [Phys. Rev. 138, B1561 (1965)] some new results were presented relating to the structure of the electromagnetic field near the focus of a coherent beam emerging from an aplanatic optical system. The present paper supplements the previous one by providing detailed analysis of the behavior of the Poynting vector in the focal region of such a beam. In particular, diagrams showing the flow lines and the contours of constant amplitude of the time-averaged Poynting vector are given. The energy flow is found to have vortices near certain points of the focal plane. Two diagrams showing the behavior of the flow near a typical vortex are also included.

© 1967 Optical Society of America

Citation
A. BOIVIN, J. Dow, and E. WOLF, "Energy Flow in the Neighborhood of the Focus of a Coherent Beam," J. Opt. Soc. Am. 57, 1171-1175 (1967)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-57-10-1171

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