| 摘要 |
PROBLEM TO BE SOLVED: To form an artificial cross-linking structure by allowing one or more kinds of prescribed groups of an urethane group and an urea group to be contained in a repetition unit of a polymer to make them to be subjected to hydrogen bond with each other. SOLUTION: This recording area surface of this optical recording medium is constituted by incorporating contains optical reactive components capable of generating optical isomerization reactions and is constituted by containing a high molecular material in whose unit in which high moleculars are repeated has at least one group to be selected from an urethane group, an urea group, an amide group, a carboxyl group or a hydroxyle group. Since the medium contains optical reactive components capable of generating optical isomerization reactions, the ratio of isomers is different in a part on which an irradiation light or a proximity field light is to be struck and a part on which the light is not struck and an optical recording is performed according to the difference. Since the optical reactive components are contained in the state of chemical bonds such as coval bond, ionic bond, coordination bond and so forth with high moleculars, the optical reactive components can be contained at high density and the photoresponsive sensitivity of the recording medium or the like can be enhanced. |
