Spectral analysis of shrinkage in holographic materials suitable for optical storage applications

Luigino Criante; K. Beev; Daniele Eugenio Lucchetta; Francesco F. Simoni

doi:10.1117/12.676538

9 June 2006 Spectral analysis of shrinkage in holographic materials suitable for optical storage applications

Luigino Criante, K. Beev, Daniele Eugenio Lucchetta, Francesco F. Simoni

Proceedings Volume 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information; 62520G (2006) https://doi.org/10.1117/12.676538
Event: Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 2005, Varna, Bulgaria

Abstract

The aim of this work is to understand the effects of the shrinkage phenomenon in H-PDLC reflection gratings through the realtime analysis of their transmission spectra during the recording process. The realtime spectroscopic analysis of the samples showed a light intensity dependent free-radical polymerization indicated by a quick growth of the reflection peak whose corresponding diffraction efficiency, measured at normal incidence, is in the range of 40%-45% depending on the photopolymerization conditions. An optical shrinkage corresponding to a 4.3% displacement of the reflected wavelength from the expected value has been detected. This value of the shrinkage is in agreement to that mesaured in a similar system.

Citation Download Citation

Luigino Criante, K. Beev, Daniele Eugenio Lucchetta, and Francesco F. Simoni "Spectral analysis of shrinkage in holographic materials suitable for optical storage applications", Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 62520G (9 June 2006); https://doi.org/10.1117/12.676538

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