1 September 2005 Characterization of polymeric materials for microholographic data storage
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Abstract
Reflection gratings have been recorded and investigated in H-PDLC materials by means of real-time spectroscopy during the polymerization process in view of possible application in optical data storage. High spatial frequency gratings (>6000lines/mm) with diffraction efficiency up to 45% and index modulation over 0.01 were obtained. The effects of the shrinkage of the reflection gratings has been detected showing a displacement of the reflected wavelength from the expected value of about 3.8%. Finally recording of microgratings has been carried out observing some optimal agreement between the microscopic and the macroscopic parameters.
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L. Criante, K. Beev, D. E. Lucchetta, F. Simoni, S. Frohmann, S. Orlic, "Characterization of polymeric materials for microholographic data storage", Proc. SPIE 5939, Organic Holographic Materials and Applications III, 59390C (1 September 2005); doi: 10.1117/12.614833; https://doi.org/10.1117/12.614833
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