Patent ID: 7704643

Claim:
A system comprising: a support matrix a polymerizable component comprising at least one photoactive polymerizable material; and a photoinitiator component comprising at least one photoinitiator for causing the polymerizable component to polymerize to thereby form at least one holographic grating when activated by exposure to a photoinitiating light source; wherein when a portion of the polymerizable component has been polymerized to form at least one holographic grating in a given volume of the holographic recording medium by exposure to the photoinitiating light source, further polymerization of the unpolymerized portion of the polymerizable component in the given volume: (1) is deliberately controlled and substantially retarded to minimize dark reactions when not exposed to the photoinitiating light source; and (2) can occur when further exposed to the photoinitiating light source; wherein further polymerization of the unpolymerized portion of the polymerizable component is deliberately controlled and substantially retarded to minimize dark reactions when not exposed to the photoinitiating light source by the system further comprising(a) one or more polymerization retarders or inhibitors; wherein the one or more polymerization retarders or inhibitors are attached to the support matrix.