Title :
High density microholographic data storage with aberration distorted holograms
Author :
Dietz, Enrico ; Frohmann, Sven ; Guenther, Alan ; Rass, Jens ; Orlic, Susanna
Author_Institution :
Opt. Technol. Lab., Tech. Univ. Berlin, Berlin
Abstract :
We investigate the impact of SA onto the performance of microholographic data storage by observing the spatial distribution and diffraction efficiency of microgratings at different aberration degrees. Results obtained on transversal and longitudinal localization of aberration-distorted microholograms are presented. The optical localization of aberration distorted microholographic gratings makes it possible to realize resolution-limited volumetric storage without any SA correction. We propose the so-called aberration multiplexing as a method to utilize the available dynamic range of a storage material in a more homogeneous and economic way.
Keywords :
aberrations; holographic gratings; holographic storage; micro-optics; optical materials; aberration multiplexing method; high-density microholographic data storage; microholographic grating diffraction efficiency; resolution-limited volumetric storage; spatial distribution; spherical aberration distorted hologram; storage material; Gratings; Holographic optical components; Holography; Lenses; Memory; Optical diffraction; Optical distortion; Optical filters; Optical recording; Spatial resolution; Microholograms; Multilayer recording; Multiplexing; Photopolymers; Spherical aberration; Volume holography;
Conference_Titel :
Optical Data Storage Topical Meeting, 2009. ODS '09.
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-3342-1
Electronic_ISBN :
978-1-4244-3343-8
DOI :
10.1109/ODS.2009.5031730
