Techniques for recording holographic lenses for infrared wavelengths |
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Authors: | Wai-Hon Lee |
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Institution: | Xerox Palo Alto Research Center, Palo Alto, CA 94304, USA |
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Abstract: | Three approaches for recording holographic lenses for infrared wavelengths are discussed. For long wavelengths such as the 10.6 μm line from CO2 lasers holographic lenses are best made as computer-generated holograms. For the near infrared holographic lenses can be made using visible wavelengths with a computer-generated hologram to provide aberration correction. Finally a two step procedure is described which can be used to make holographic lenses for most infrared wavelengths. |
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