Open AccessResolution-limited optical recording in 3D
Author(s) -
Susanna Orlic,
Enrico Dietz,
Sven Frohmann,
Jens Raß
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.016096
Subject(s) - optics , 3d optical data storage , holography , optical recording , optical storage , materials science , holographic data storage , computer data storage , volume (thermodynamics) , diffraction efficiency , digital recording , stray light , resolution (logic) , optical disc , image resolution , optoelectronics , computer science , physics , telecommunications , computer hardware , quantum mechanics , artificial intelligence
We present an optical write/read system for high density optical data storage in 3-D. The microholographic approach relies on submicron-sized reflection gratings that encode the digital data. As in conventional optical data storage, the physical limitations are imposed by both the diffraction of light and resolution of the recording material. We demonstrate resolution-limited volume recording in photopolymer materials sensitive in the green and violet spectral range. The volume occupied by a micrograting scales down by the transition in the write/read wavelength. Readout yields a micrograting width of 306 nm at 532 nm and 197 nm at 405 nm. To our knowledge these are the smallest volume holograms ever recorded. The recordings demonstrate the potential of the technique for volumetric optical structuring, data storage and encryption.