Industrial Technology Research Institute

Tsinghua University

Other

Don-Yau Chiang

Der-Ray Huang

Wen-Yih Liao

Hong-Ji Lee

Chien-Liang Huang

Andrew Teh Hu

Shi-Jae Ye

Tzuan-Ren Jeng

Tsai-Chu Hsiao

Ying-Jen Kao

Chin-Sen Chen

Lii-Chyuan Tsai

Jian-Liang Huang

Jen-Cheng Chang

Jin-Sen Chen

A structure of an optical recording medium that mainly includes a first dielectric layer, a dye layer, a second dielectric layer, and a reflective layer formed on a substrate in sequence, and a method for fabricating an optical recording medium of the foregoing structure. The additional dielectric layers of the optical recording medium, instead of a quencher used in a conventional optical recording medium, increase the lifetime of a dye layer and reduce the fabrication cost. Furthermore, the additional dielectric layers are capable of isolating the dye layer from oxygen and moisture to enhance the lightfastness of the dye layer.

Optical recording medium

A cyanine dye for using in high density optical disc recording medium, having the following structure: ##STR1## wherein R represents 4-methoxycarbonyl benzyl group, X.sup.- represents an acid anion, and n represents an integer of 1 or 2. This cyanine dye is suitable for use as a .lambda.=450 nm.about.650 nm visible light-absorbing organic dye useful as a high density optical disc recording medium.

Preparation of cyanine dye for high density optical recording disk

A cyanine dye for using in optical disc recording medium, having the following structure: ##STR1## wherein R represents 4-methoxycarbonyl benzyl group, X.sup.- represents an acid anion, and n represents am integer of 2 or 3. This cyanine dye is suitable for use as a near infrared light-absorbing organic dye useful as an optical disc recording medium.

Cyanine dyes mixture as optical recording media

Growing community of inventors

Hsinchu Hsien, Taiwan

Don-Yau Chiang