12 February 2008 Optical information recording in biopolymer-based material
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In this paper we present results of possible applications of a modified DNA-dye system for dynamic processing of optical information like phase conjugation or optical correlation. The system consisted of bio-polymeric matrix made of deoxyribonucleic acid (DNA) substituted with cationic surfactant molecule cetyltrimethyl-ammonium chloride (CTMA) and doped with a photochromic Disperse Red 1 dye. Fast dynamics (a single millisecond rise and fall times) of diffraction grating formation were obtained in a typical degenerate two or four wave mixing experiments. For sample excitation we used a linearly polarized light of λ = 514.5 nm delivered by an argon ion (Ar+) laser. Complete reversibility of the signal generation with no residual light diffraction even after longer time exposures (up to few hours) was observed.
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J. Mysliwiec, A. Kochalska, A. Miniewicz, "Optical information recording in biopolymer-based material", Proc. SPIE 6891, Organic Photonic Materials and Devices X, 68910H (12 February 2008); doi: 10.1117/12.761519; https://doi.org/10.1117/12.761519

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