Using holographically generated corrector plates to fabricate low f/No. HOE objectives and collimators.
We describe a double wavelength shift recording scheme for constructing holographic optical element (HOE) objectives and collimating lenses. The lenses are fabricated at intermediate wavelengths for use in a longer wavelength region. A holographic corrector plate is generated with a third wavelength that is the shortest of the three. Aberration of the HOE is compensated by inserting the corrector plate in one of the beams used in the construction process.
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Chen
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Shan