摘要:
A method for storing holographic data, said method comprising: step (A) providing an optically transparent substrate comprising a polymer composition and a light absorbing chromophore, said polymer composition comprising a continuous phase and a dispersed phase, said dispersed phase being less than about 200 nm in size; and step (B) irradiating a volume element of the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to cause a phase change in at least a portion of the dispersed phase within the volume element of the substrate to produce within the irradiated volume element refractive index variations corresponding to the holographic interference pattern, thereby producing an optically readable datum corresponding to the volume element.
摘要:
A method for storing holographic data, said method comprising: step (A) providing an optically transparent substrate comprising a polymer composition and a light absorbing chromophore, said polymer composition comprising a continuous phase and a dispersed phase, said dispersed phase being less than about 200 nm in size; and step (B) irradiating a volume element of the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to cause a phase change in at least a portion of the dispersed phase within the volume element of the substrate to produce within the irradiated volume element refractive index variations corresponding to the holographic interference pattern, thereby producing an optically readable datum corresponding to the volume element.
摘要:
There are provided compositions, optical data storage media and methods of using the optical data storage media. The compositions comprise a non-linear sensitizer comprising one or more subphthalocyanine reverse saturable absorbers capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
摘要:
Optical data storage media for bit-wise recording of a microhologram using an incident radiation at a wavelength of about 405 nm are provided. The optical storage medium includes (a) a non-photopolymer polymer matrix; (b) a non-linear sensitizer comprising a phenylethynyl platinum complex, wherein the non-linear sensitizer is capable of triplet-triplet energy transfer from an upper triplet state (Tn) of the non-linear sensitizer to a lower triplet state (T1) of a reactant, wherein “n” is an integer greater than 1; and (c) a reactant capable of undergoing a chemical change upon the triplet-triplet energy transfer from the non-linear sensitizer, thereby causing a refractive index change in the medium to record the microhologram.
摘要:
There are provided optical data storage media and methods of optical data storage using the same. The optical data storage media comprises a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes change upon triplet excitation. The refractive index change (Δn) of the medium is at least about 0.005, or even at least about 0.05.
摘要:
There are provided compositions, optical data storage media and methods of using the optical data storage media. The compositions comprise a non-linear sensitizer comprising one or more subphthalocyanine reverse saturable absorbers capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
摘要:
Optical data storage media for bit-wise recording of a microhologram using an incident radiation at a wavelength of about 405 nm are provided. The optical storage medium includes (a) a non-photopolymer polymer matrix; (b) a non-linear sensitizer comprising a phenylethynyl platinum complex, wherein the non-linear sensitizer is capable of triplet-triplet energy transfer from an upper triplet state (Tn) of the non-linear sensitizer to a lower triplet state (T1) of a reactant, wherein “n” is an integer greater than 1; and (c) a reactant capable of undergoing a chemical change upon the triplet-triplet energy transfer from the non-linear sensitizer, thereby causing a refractive index change in the medium to record the microhologram.
摘要:
There are provided compositions, optical data storage media and methods of using the optical data storage. The compositions comprise a non-linear sensitizer comprising one or more platinum ethynyl complexes capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
摘要:
There are provided compositions, optical data storage media and methods of using the optical data storage. The compositions comprise a non-linear sensitizer comprising one or more platinum ethynyl complexes capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
摘要:
There are provided optical data storage media and methods of optical data storage using the same. The optical data storage media comprises a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes change upon triplet excitation. The refractive index change (Δn) of the medium is at least about 0.005, or even at least about 0.05.