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Polymer Blends with Azobenzene‐ Containing Block Copolymers as Stable Rewritable Volume Holographic Media
Author(s) -
Häckel M.,
Kador L.,
Kropp D.,
Schmidt H.W.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200601458
Subject(s) - materials science , azobenzene , holography , polymer , holographic data storage , copolymer , optics , optical storage , optoelectronics , volume (thermodynamics) , optical disc , composite material , physics , quantum mechanics
A storage material that is suitable for rewritable volume holographic media with a thickness in the millimeter range is presented (see figure). Writing, reading, and deleting are possible by purely optical means, and inscribed multiplexed gratings exhibit good long‐term stability. A two‐step method of optical deleting allows for more than 1000 erase–rewrite cycles without a measurable change in the material.