Title :
Microholographic data storage
Author :
Orlic, Susanna ; Dietz, Enrico ; Frohmann, Sven ; Mecher, Erwin ; Muller, Christian ; Eichler, Hans J.
Author_Institution :
Opt. Inst., Tech. Univ. Berlin, Germany
Abstract :
We report on different steps in exploring the physical basis of microholographic data storage. Using highly focused laser beams, localized volume storage has been demonstrated by creating micrometer-sized holographic gratings. The present work concerns a novel approach to 3D optical storage that offers a compromise by implementing holographic volume recording within the bit-oriented storage scheme of CD/DVD technology. Multilayer storage has been demonstrated in thick samples of ULSH Aprilis photopolymer by recording up to three layers of microgratings through the depth of the photopolymer sample.
Keywords :
holographic gratings; holographic storage; laser beams; micro-optics; optical disc storage; optical focusing; optical multilayers; optical polymers; 3D optical storage; CD technology; DVD technology; ULSH Aprilis photopolymer thick samples; bit-oriented storage scheme; holographic volume recording; laser beams focusing; localized volume storage; microgratings; microholographic data storage; micrometer-sized holographic gratings; multilayer storage; CD recording; DVD; Gratings; Holographic optical components; Holography; Laser beams; Laser theory; Memory; Nonhomogeneous media; Optical recording;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313822
