Two-photon absorption decolorizable material, two-photon absorption refractive index modulation material, two-photon absorption polymerization material, two-photon absorption polymerization method and three-dimensional optical recording material
AssigneeFUJIFILM Corporation
InventorHiroo Takizawa
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Abstract
A two-photon absorption decolorizable material comprising: a two-photon absorption dye executing a two-photon absorption; and a decolorizable dye having a molar absorption coefficient equal to or less than 100 at a wavelength of a light irradiated at the two-photon absorption, wherein the decolorizable dye is decolorized by an electron transfer or an energy transfer utilizing an excitation energy obtained by the two-photon absorption of the two-photon absorption dye.
Claims9
A two-photon absorption decolorizable material comprising:
- a two-photon absorption dye executing a two-photon absorption;
- a separate or additional decolorizable dye having a molar absorption coefficient equal to or less than 100 at a wavelength of a light irradiated at the two-photon absorption;
- and
- an electron donating compound capable of reducing a radical cation of the two-photon absorption dye,
- wherein the decolorizable dye is decolorized by an electron transfer or an energy transfer utilizing an excitation energy obtained by the two-photon absorption of the two-photon absorption dye, and
- wherein the electron donating compound is a phenothiazine.
A two-photon absorption polymerization method comprising:
- a first step in which a two-photon absorption dye executes a two-photon absorption to generate an excited state, and, utilizing an excitation energy thereof, decolorizes a decolorizable dye having a molar absorption coefficient equal to or less than 100 at a wavelength of a light irradiated at the two-photon absorption, thereby forming a latent image by a residual decolorizable dye that is not decolorized;
- and
- a second step of irradiating the latent image of the residual decolorizable dye with a light thereby inducing a polymerization based on a linear absorption of the residual decolorizable dye.
A three-dimensional optical recording material comprising a two-photon absorption decolorizable material, which comprises:
- a two-photon absorption dye executing a two-photon absorption;
- and
- a separate or additional decolorizable dye having a molar absorption coefficient equal to or less than 100 at a wavelength of a light irradiated at the two-photon absorption, and
- wherein the decolorizable dye is decolorized by an electron transfer or an energy transfer utilizing an excitation energy obtained by the two-photon absorption of the two-photon absorption dye,
- said three-dimensional optical recording material being stored in a light-shielding cartridge.
A three-dimensional optical recording material comprising a two-photon absorption refractive index modulation material, which comprises a two-photon absorption decolorizable material, said two-photon absorption decolorizable material comprising:
- a two-photon absorption dye executing a two-photon absorption;
- and
- a separate or additional decolorizable dye having a molar absorption coefficient equal to or less than 100 at a wavelength of a light irradiated at the two-photon absorption,
- wherein the decolorizable dye is decolorized by an electron transfer or an energy transfer utilizing an excitation energy obtained by the two-photon absorption of the two-photon absorption dye,
- said three-dimensional optical recording material being stored in a light-shielding cartridge.
Dependencies are inferred from the claim text.