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TheHuygens’ principle geometrical treatment of the propagation of light presented in the preceding chapter is only an approximate description. It does not take the spatial amplitude distribution of the electromagnetic wave into account. Geometrical opticsGeometrical optics can be applied as long as the wavelength is small compared to the lateral extent of the wave. This restriction, as already discussed, is equivalent to a large Fresnel number N.

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Wave Optics

  • 章节

  • 发表日期：

    2025年

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  • Norman Hodgson,
  • Horst Weber

摘要

TheHuygens’ principle geometrical treatment of the propagation of light presented in the preceding chapter is only an approximate description. It does not take the spatial amplitude distribution of the electromagnetic wave into account. Geometrical opticsGeometrical optics can be applied as long as the wavelength is small compared to the lateral extent of the wave. This restriction, as already discussed, is equivalent to a large Fresnel number N.