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Abstract

There is disclosed a recordable optical element that includes a recording layer. The element has a transparent substrate and on the surface of the substrate, a) a recording layer containing a light absorbing material and b) a light reflecting layer, the improvement wherein said light absorbing material has the structure: ##STR1## wherein; R is hydrogen, alkyl having from 1 to about 20 carbons, substituted or substituted aryl from about 6 to 10 carbon atoms; R.sub.1 represents hydrogen or an alkyl group of from 1 to about 6 carbon atoms; R.sub.2 represents a hydrogen, an alkyl group of from 1 to about 5 carbon atoms; SO.sub.2 R"' or SO.sub.2 NHR"' where R"' is an alkyl group from 1 to about 10 carbon atoms; an aryl group of from about 6 to 10 carbon atoms or a hetaryl group of from about 5 to about 10 carbon atoms or a halogen atom; R.sub.3 represents hydrogen, an alkyl group of from 1 to about 4 carbon atoms or a halogen atom; R.sub.4 represents alkyl group 1 to 10 carbon atoms; SO.sub.2 R"', SO.sub.2 NHR"' where R"' is an alkyl group from 1 to about 10 carbon atoms; an aryl group of from about 6 to 10 carbon atoms or a hetaryl group of from about 5 to about 10 carbon atoms or a halogen atom; R.sub.5 represents an electron withdrawing group such as NO.sub.2, CN, SO.sub.2 R"", SO.sub.2 NR.sup.V R.sup.VI where R"", R.sup.V or R.sup.VI each independently can represent a hydrogen, an alkyl group of from 1 to about 5 carbon atoms; an aryl group of from about 6 to about 10 carbon atoms; a hetaryl group of from about 5 to about 10 carbon atoms; or a cycloalkyl group of from about 5 to about 7 carbon atoms; R.sub.6 represents hydrogen; an alkyl group of from 1 to about 5 carbon atoms; or a halogen atom; X represents oxygen, sulfur or carboxyl or sulfo groups; and Dye.sup.+ can be any dye that has one or more positive charges.

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First Claim