Optical image storage

The interesting photophysics and photochemistry [37, 38] of stilbenoid compounds make them suitable for applications in materials science. In addition to well-established applications, such as in optical brighteners, others arise in light-emitting diodes (LED), in non-linear optics (NLO), and in optical imaging, storage, and switching techniques. 

A unique feature of polymer azobenzene LCs as optical image storage materials has been demonstrated. In nematic glasses (solid state azobenzene LC films retaining an N... 

Biochrom-BR film Biochrom-4KBR film (Erasable optical image storage) photochromic effect (ground state-M state transition) BR (wildtype and modified chromophore) [40-42]... 

Si, J., Kitaoka, K., Mitsuyu, T., and Flirao, K. (1999). Optical image storage based on all-oplical poling in polymer films. Jpn. J. Appl. Phys. 38, 390-392. 

Matsuoka, N., Kitaoka, K., Si, J.H., Fujita, K., and Hirao, K. (2000) Second-order nonlinearity and optical image storage in phenyl-silica hybrid films doped with azo-... 

Hunt, P. A. Optical Data-Storage Systems. In Chemistry and Technology of Printing and Imaging Systems Gregory, P., Ed. Blackie London, 1996. 

The chapters cover the following areas (i) use of coordination complexes in all types of catalysis (Chapters 1-11) (ii) applications related to the optical properties of coordination complexes, which covers fields as diverse as solar cells, nonlinear optics, display devices, pigments and dyes, and optical data storage (Chapters 12-16) (iii) hydrometallurgical extraction (Chapter 17) (iv) medicinal and biomedical applications of coordination complexes, including both imaging and therapy (Chapters 18-22) and (v) use of coordination complexes as precursors to semiconductor films and nanoparticles (Chapter 23). As such, the material in this volume ranges from solid-state physics to biochemistry. 

ABSTRACT A new class of photosensitive, thermally stable polymers containing photo-labile aromatic amide linkages has been prepared. These polymers can be used to provide lithographic relief images for printing, etch masks for microcircuit fabrication and as contrast media for optical information storage. 

Cyanine dyes (3) are the best known polymethine dyes. Nowadays, their commercial use is limited to sensitizing dyes for silver halide photography and as infrared absorbers for optical data storage and other (bio)imaging applications. However, derivatives of cyanine dyes provide important dyes for polyacrylonitrile. 

P. Hunt, Optical Data Storage Systems in Chemistry and Technologyof Printing and Imaging Systems, P. Gregory (ed.), Blackie, London, 1996. 

---