Permanent marks, interpreted as bits, are the sine qua non of deep archival storage. Until about 2006, this area of research apparently did not exist, but advances in the past several years at Brigham Young University and at Millenniata, Inc., have produced one product (the M-Disc a permanent recordable optical disc of DVD capacity), a follow-on recordable optical disc of Blu-ray capacity, work...

The optical disk is a computer-addressable binary storage medium with very high capacity. More than 1010 bits of information can be recorded on a 12-cm-diameter optical disk. The natural two-dimensional format of the data recorded on an optical disk makes this medium particularly attractive for the storage of images and holograms, while parallel access provides a convenient mechanism through wh...

The ever-increasing demand for high data storage capacity has spurred research on development of innovative technologies and new storage materials. Conventional GByte optical discs (DVDs and Bluray) can be transformed into ultrahigh capacity storage media by encoding multi-level and multiplexed information within the three dimensional volume of a recording medium. However, in most cases the rec...

During the coming years, digital data storage technologies will continue an aggressive growth to satisfy the user's need for higher storage capacities, higher data transfer rates and long-term archival media properties. Digital optical tape is a promising technology to satisfy these user's needs. As any emerging data storage technology, the industry faces many technological and standardization ...

Date__________________ The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. ABSTRACT In recent years the capacity of optical storage media has increased significantly. However, the same growth has not been seen in data transfer rate. In order ...

We propose a volume holographic data storage scheme that employs counterpropagating reference and image beams and wavelength multiplexing for page differentation. This method is compared with that based on angular multiplexing. A reduction in holographic cross talk is predicted. Further cross-talk reduction that is due to sidelobe suppression is observed in experiments by using photorefractive ...

Articles you may be interested in Characterization of volume holographic recording in photopolymerizable nanoparticle-(thiol-ene) polymer composites at 404 nm All-optical fabrication of three-dimensional photonic crystals in photopolymers by multiplex-exposure holographic recording Appl. Holographic assembly of semiconductor CdSe quantum dots in polymer for volume Bragg grating structures with ...

Page-oriented data storage systems incorporate optical detector arrays [such as complementary metal-oxide semiconductor (CMOS) arrays] in order to read data images. For laboratory demonstrations the detector array is typically pixel matched to the data image [Opt. Lett. 22, 1509 (1997)]. This approach requires exceedingly high-performance optics and mechanics for the simultaneous alignment of e...

A multi-channel Optical Head has been developed to be incorporated with an Optical Tape Drive that enables greater than 1TB capacity and greater than 25 MB/s data transfer rate on a 0.5 mil thick, 0.5 inch wide optical tape that fits in a 3480 style cartridge. The optical design has been optimized to perform at 532 nm with maximum through put in the write path. With use of a 0.6 NA objective le...

Research into the development of new data-storage strategies is fueled by the continuing demand for ultrahigh information capacity, increased data density, smaller form factor, and faster readout rates. Conventional data-storage devices such as magnetic hard-disk drives, optical disks, and semiconductor memories all rely on storing information bit by bit on the surface of a recording medium. Ho...