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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 13, Iss. 8 — Aug. 1, 1996
  • pp: 1712–1718

Effect of the switching pattern of the illumination of dynamic apertures on the ranges of the generated localized waves

Amr M. Shaarawi, Sherif M. Sedky, Richard W. Ziolkowski, and Fawzia M. M. Taiel  »View Author Affiliations


JOSA A, Vol. 13, Issue 8, pp. 1712-1718 (1996)
http://dx.doi.org/10.1364/JOSAA.13.001712


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Abstract

We study two different switching patterns of dynamic apertures illuminated by a focus-wave-mode excitation field. The two sources are chosen to be identical except that one is illuminated with use of a Gaussian time window, whereas the other uses a periodic function defined over the same time span. In spite of the similarity between the two dynamic apertures, the decay patterns of the amplitudes of their radiated fields are significantly different. A detailed analysis of the depletion of their spectral contents shows that the coupling between the spatial and temporal spectral components plays a decisive role in extending the range of the localization of the radiated pulses.

© 1996 Optical Society of America

Citation
Amr M. Shaarawi, Sherif M. Sedky, Richard W. Ziolkowski, and Fawzia M. M. Taiel, "Effect of the switching pattern of the illumination of dynamic apertures on the ranges of the generated localized waves," J. Opt. Soc. Am. A 13, 1712-1718 (1996)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-13-8-1712

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