REVERSE SATURABLE ABSORBTION SENSITIZERS FOR OPTICAL DATA STORAGE MEDIA AND METHODS FOR USE.

摘要

The invention relates generally to optical data storage media 50, and more specifically, to holographic storage media. In one embodiment, an optical storage medium 50 composition includes a polymer matrix. Disposed within the polymer matrix is a reactant capable of undergoing a modification that alters the refractive index of the composition upon receiving an energy transfer from an excited sensitizer. A non-linear sensitizer is also disposed within the polymer matrix, and the sensitizer includes a metal-substituted subphthalocyanine (M-sub-PC) reverse saturable absorber configured to become excited upon exposure to light beyond an intensity threshold at approximately 405 nm and configured to transfer energy to the reactant.