Light‐sensitive organic recording media for 3D optical memory

Abstract

This paper presents own results in the field of organic recording media for bitwise working (WERM) and archival (WORM) optical memory. For the development of recording media for bitwise WERM optical memory thermally irreversible photochromic compounds from diarylethene, fulgimide classes manifesting reversible photoinduced valence are used. For making WORM optical memory chromons which form fluorescent products from nonluminescent compounds during irreversible photochemical reaction under laser UV irradiation are suggested. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Functionalization of photochromic dithienylmaleimides

“…2 A variety of applications are found in molecular optoelectronics 3 and optical data storage. [4][5][6] In the eld of life sciences, molecular switches have been used to control enzyme activity, [7][8][9][10] Watson-Crick base pairing, [11][12][13] the regulation of neuronal activity by photochromic ligands for ion channels and receptors, [14][15][16][17][18][19][20] antibiotic effects 21,22 and even the agility of a living organism 23 by light. This broad applicability is one of the reasons why photopharmacology has evolved into a vibrant eld of research.…”

Preparation of Dithienylethene with Amino Groups, and Photochromic Behavior in Langmuir-Blodgett Film of the Amphiphilicdithienylethene

“…If one can prepare LB film with multilayer structure consisting of different photo chromic compounds, multiple optical memory will be attained. Until now, few such studies have been conducted [9]. In these studies, however, they employed photochromic compounds which have large molecular structure change during their photochromic reaction, for example, azobenzene, spyropyran and so on [10][11][12][13].…”