Gratings and Zone Plates

  • Winston E. Kock
Part of the Optical Physics and Engineering book series (OPEG)


If the waves protrayed in Figure 1.15 had been single-wavelength light waves, rather than sound waves, and if the two radiators had been long slits perpendicular to the paper, a white screen placed to the right of these slits would have displayed a comparable series of bright and dark vertical bands, called, in optical terminology, fringes. We noted earlier, in connection with Figure 1.2, that when one of two wave sets is a full wavelength ahead of the other, the two again add, and, therefore, as in Figure 2.16, wave energy is diffracted into those off-angle directions for which such a condition holds.


Wave Energy Interference Pattern Spherical Wave Zone Plate Photographic Plate 
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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • Winston E. Kock
    • 1
  1. 1.The Herman Schneider Laboratory of Basic and Applied Science ResearchUniversity of CincinnatiCincinnatiUSA

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