10 March 2015 Holographic gratings in dichromated gelatin with edible dyes
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We present preliminary results on diffraction gratings made with holographic techniques using dichromated gelatin (DCG) matrix with edible dyes, the purple red, Layar® and blue Sabofrut®. The gratings were recorded with a laser diode, λ = 530nm. Curves show diffracted intensity vs exposure time. The recorded gratings show different diffraction efficiencies of gratings prepared with DCG, purple red + DCG, and blue+ DCG. We observed high diffraction efficiency with purple red. All exposure conditions and reconstruction were therefor for all gratings with the same concentration of dichromate for each one of the photosensitive emulsions prepared.
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Arturo Olivares-Pérez, Arturo Olivares-Pérez, Israel Fuentes-Tapia, Israel Fuentes-Tapia, Yessenia Jauregui-Sanchez, Yessenia Jauregui-Sanchez, Santa Toxqui-Lopez, Santa Toxqui-Lopez, Rosario Juárez-Néstor, Rosario Juárez-Néstor, "Holographic gratings in dichromated gelatin with edible dyes", Proc. SPIE 9386, Practical Holography XXIX: Materials and Applications, 93860O (10 March 2015); doi: 10.1117/12.2077237; https://doi.org/10.1117/12.2077237

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