Wavelength multiplexed optical recording material

Details Wavelength multiplexed optical recording material Wavelength multiplexed optical recording material

1991-03-14

1993-04-20

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430945, 430495, 365119, G11B 724

Patent

active

052042154

ABSTRACT:
A wavelength multiplexed optical recording material is disclosed wherein a photosensitive material including substituted porphine, such as tetra(pentafluorophenyl) porphine or tetra(4-methoxyphenyl) porphine, is uniformly dispersed into an optically transparent dispersion medium. When such wavelength multiplexed optical recording material is cooled to a temperature of liquid helium and irradiated with a laser beam, a large number of holes of narrow width are formed in an inhomogenous absorption band under the phenomenon of photochemical hole burning. As compared to unsubstituted porphine, the above porphine derivatives give an improved recording sensitivity and narrow hole width.

REFERENCES:
patent: 4101976 (1978-07-01), Castro et al.
patent: 5051337 (1991-09-01), Sakoda et al.

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