Generation of approximate focus-wave-mode pulses from wide-band dynamic Gaussian apertures

  title={Generation of approximate focus-wave-mode pulses from wide-band dynamic Gaussian apertures},
  author={Amr M. Shaarawi},
It is demonstrated that an approximation to the focus-wave-mode field can be generated from a dynamic Gaussian aperture. A source of this type is characterized by the time variation of its effective radius. The performance of such an aperture is studied in detail; it is demonstrated that the dynamic aperture shows a great enhancement over the corresponding static one. The types of source investigated provide an efficient scheme to launch narrow Gaussian pulses from extended apertures. 
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