Please use this identifier to cite or link to this item: https://doi.org/10.1364/JOSAA.24.003115
Title: Monochromatic electromagnetic fields with maximum focal energy density
Authors: Moore, N.J.
Alonso, M.A.
Sheppard, C.J.R. 
Issue Date: Oct-2007
Source: Moore, N.J., Alonso, M.A., Sheppard, C.J.R. (2007-10). Monochromatic electromagnetic fields with maximum focal energy density. Journal of the Optical Society of America A: Optics and Image Science, and Vision 24 (10) : 3115-3122. ScholarBank@NUS Repository. https://doi.org/10.1364/JOSAA.24.003115
Abstract: The monochromatic electromagnetic fields that achieve maximum focal energy density for a given input power and directional spread are found through a variational approach. It is found that the polarization of the fields at the focal point must be perpendicular to the main direction of propagation. Parametric expressions relating the directional spread and focal energy density of these fields (and others that achieve stationary focal irradiance) are found both in the optical (electric field only) and in the electromagnetic cases. © 2007 Optical Society of America.
Source Title: Journal of the Optical Society of America A: Optics and Image Science, and Vision
URI: http://scholarbank.nus.edu.sg/handle/10635/52537
ISSN: 10847529
DOI: 10.1364/JOSAA.24.003115
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