| 摘要 |
PURPOSE:To enhance reflectivity and recording sensitivity and to stabilize the writing or reproduction of an optical signal, by forming an optical information recording medium by laminating a recording layer containing an org. dye represented by a specific general formula to a substrate. CONSTITUTION:An org. dye represented by formula (wherein R1 is a 1-6C alkyl group, an aralkyl group or a phenyl group, R2 is a hydrogen atom or a halogen atom, X is an anion such as perchlorate or fluoroborate, Y is a 1-18C alkyl group, Z is the benzene ring added to a benzene ring constituting indole and n is an integer of 0, 1 or 2) is dissolved in a solvent to prepare a coating solution which is, in turn, applied to a substrate 1 such as glass or plastic to form a recording layer 2. Recording and reproduction are performed by condensing laser beam 3 onto the recording layer 2 in a spot form by a condensing lens. |
