25 February 2014 Fluorescent holograms with albumin-acrylamide
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Abstract
We describe fluorescent holograms were made with photosensitive films of albumin (protein) quail, used as modified matrices. Albumin is mixed with acrylamide and eosin Y. Therefore, prepare a photosensitive emulsion and solid hydrated with the ability to phase transmission holograms and volume (VPH). Eosin Y is a fluorescent agent that acts as a photo-sensitizing dye which stimulates the polymerization of acrylamide. To record the interference pattern produced by two waves superimposed on the modified matrix, we use a He-Cd laser. To reconstruct the diffraction pattern is observed with He- Ne laser, λ = 632.8nm, the material is self-developing properties. Measure the diffraction efficiency of the diffracted orders (η[-1, +1]) as a function of exposure energy. We work with various thicknesses and measure the variation of the refractive index using the coupled wave theory of Kogelnik, the holographic gratings meet Bragg condition.
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M. J. Ordóñez-Padilla, A. Olivares-Pérez, I. Fuentes-Tapia, "Fluorescent holograms with albumin-acrylamide", Proc. SPIE 9006, Practical Holography XXVIII: Materials and Applications, 900619 (25 February 2014); doi: 10.1117/12.2038204; https://doi.org/10.1117/12.2038204
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