TWO-PHOTON ABSORPTION OPTICAL RECORDING MATERIAL, TWO-PHOTON ABSORPTION OPTICAL RECORDING MEDIUM, ITS RECORD REPRODUCTION METHOD, AND TWO-PHOTON ABSORPTION OPTICAL RECORD REPRODUCTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a two-photon absorption optical recording material causing color development in high sensitivity and at high speed when using a recording component whose absorption changes by a two-photon absorption compound in particular a color developing type pigment precursor.

SOLUTION: The two-photon absorption optical recording material includes at least (1) a two-photon absorption optical compound, (2) a recording component whose absorption spectrum changes by electron movement or energy movement from the excited condition of the two-photon absorption compound, (3) an electron donating compound capable of donating electrons to the two-photon absorption compound or/and a compound constituting a recording component.

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