Testing aspherics using two-wavelength holography.

  title={Testing aspherics using two-wavelength holography.},
  author={James C. Wyant},
  journal={Applied optics},
  volume={10 9},
It is shown that both single exposure and double exposure two-wavelength holography provide a good method of using visible light to obtain an interferogram identical to what would be obtained if a longer nonvisible wavelength were used. Both techniques provide for the real-time adjustment of defocus and tilt in the final interferogram. When both hologram exposures are made simultaneously, the sensitivity to air turbulence is essentially the same as if the longer nonvisible wavelength were used… CONTINUE READING
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Munnerlyn and M. of Holography (Wiley-Interscience

  • C R.
  • Latta, Appl. Opt
  • 1968

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