Microholographic storage in photopolymers

A novel approach to 3D optical information storage based on writing and reading of microscopic holographic gratings in a photopolymer layer is investigated. The reflection gratings created by a highly focused laser beam can be used to replace the pit-land structure in a disk-based optical storage sy...

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Bibliographic Details
Published inInternational Symposium on Optical Memory and Optical Data Storage Topical Meeting pp. 228 - 230
Main Authors Orlic, S., Mueller, C., Reinicke, A., Schoen, R., Trefzer, M., Eichler, H.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Gratings
Holographic optical components
Holography
Laser beams
Nonhomogeneous media
Optical microscopy
Optical modulation
Optical recording
Optical reflection
Writing
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Summary:A novel approach to 3D optical information storage based on writing and reading of microscopic holographic gratings in a photopolymer layer is investigated. The reflection gratings created by a highly focused laser beam can be used to replace the pit-land structure in a disk-based optical storage system. The modulation range of such 3D microgratings is clearly localized to the focal region of a focused write beam. Holographic recording allows for use of various multiplexing methods. To achieve storage densities higher than are currently available, we propose a combination of wavelength multiplexing and multilayer storage. Multiwavelength recording in DuPont HRF polymers as well as multilayer storage in thick samples of Aprilis CROP photopolymers are reported.
ISBN:9780780373792
0780373790
DOI:10.1109/OMODS.2002.1028624