Optical data storage medium and methods for using the same
AssigneeGeneral Electric Company
InventorsArunkumar Natarajan, Eugene Pauling Boden, Kwok Pong Chan, David Gilles Gascoyne, Evgenia Mikhailovna Kim, Brian Lee Lawrence, Victor Petrovich Ostroverkhov, Robert James Perry, Michael Teruki Takemori
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Abstract
There are provided an optical data storage medium and methods of optical data storage using the same. The optical data storage medium comprises a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
Claims22
An optical data storage medium comprising:
- A polymer matrix;
- A reactant capable of undergoing a photochemical change upon triplet excitation, thereby causing a refractive index change;
- and
- A non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to said reactant.
An optical data storage medium for the bit-wise recording of microholographic data comprising:
- A polymer matrix;
- A reactant comprising stilbene capable of undergoing a photochemical change upon triplet excitation, thereby causing a refractive index change;
- and
- A non-linear sensitizer comprising reverse saturable absorber capable of absorbing actinic radiation to cause upper triplet energy transfer to said reactant.
A method for optical data storage comprising:
- Providing an optical data storage medium comprising a polymer matrix, a reactant capable of undergoing a photochemical change upon triplet excitation, thereby causing a refractive index change and a non-linear sensitizer capable of absorbing actinic radiation to cause upper triplet energy transfer to said reactant;
- and
- Recording a microhologram in said optical data storage medium.
Dependencies are inferred from the claim text.