25 February 2014 Diffracting holographic lenses created on azo-polymer films
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Various superimposed chirped relief gratings, acting as diffracting holographic lenses, were photo-inscribed on azopolymer films upon exposure to the interference pattern of a plane and a curved laser light wavefronts. Depending on the configuration used, this resulted in incident light being focused independently of polarization along the 0th or 1st diffracted order of the grating. The focal point and focalization angle of the resulting holographic lenses were easily tuned during the fabrication process.
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Ribal Georges Sabat, Ribal Georges Sabat, "Diffracting holographic lenses created on azo-polymer films", Proc. SPIE 9006, Practical Holography XXVIII: Materials and Applications, 900606 (25 February 2014); doi: 10.1117/12.2032722; https://doi.org/10.1117/12.2032722

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