MULTILAYER RECORDABLE OPTICAL MEDIUM WITH FLUORESCENT READING

• Main Authors: MAGNITSKII, SERGEII, PEBALK, DIMITRIY, TARASISHIN, ANDREY, SHUBIN, VLADIMIR, ZUHL, IRENE, SCHWARTZ, VLADIMIR, KAPINUS, EUGENE, MALAKHOV, DMITRIJ, MALKIN, JACOB, ALPEROVICH, MARK, LEVICH, EUGENE
• Format: Patent
• Language: English; French
• Published: 06.12.2001
• Edition: 7
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

In a multilayer recordable optical medium, each recording layer includes a luminophore (202) that fluoresces under reading laser light and a quencher (203) capable of quenching the luminophore fluorescence. Initially, the luminophore and the quencher are not intermixed, so that the default state of the luminophore is fluorescent. During writing, focused writing radiation heats a spot in the medium so as to cause the luminophore and the quencher to be intermixed, thereby quenching the fluorescence. In a multilayer recordable optical medium, each recording layer includes a luminophore that fluoresces under reading laser light and a quencher capable of quenching the luminophore fluorescence. Initially, the luminophore and the quencher are not intermixed, so that the default state of the luminophore is fluorescent. During writing, focused writing radiation heats a spot in the medium so as to cause the luminophore and the quencher to be intermixed, thereby quenching the fluorescence. La présente invention concerne un support optique enregistrable multicouche dans lequel chaque couche d'enregistrement comporte un luminophore devenant fluorescent sous la lumière laser de lecture et un extincteur capable d'éteindre la fluorescence du luminophore. Au début, le luminophore et l'extincteur ne sont pas intimement mêlés, ce qui fait que l'état implicite du luminophore est la fluorescence. Pendant l'écriture, le rayonnement d'écriture focalisé chauffe un point dans le support de façon à provoquer le mélange intime du luminophore et de l'extincteur, ce qui éteint la fluorescence.