Sony Group Corporation
PHOTOSENSITIVE COMPOSITION, HOLOGRAM RECORDING MEDIUM USING THE SAME, HOLOGRAM OPTICAL ELEMENT, AND METHOD OF FORMING HOLOGRAM DIFFRACTION GRATING

Abstract:

To provide a photosensitive composition capable of further improving diffraction characteristics. The present technology provides a photosensitive composition including: at least a compound represented by the following general formula (1); a binder resin; and a photoinitiator. ##STR00001## In the general formula (1), X.sup.1 represents an oxygen atom, a nitrogen atom, a phosphorus atom, a caron atom, or a silicon atom. Y.sup.1 and Y.sup.2 each represent a benzene ring or a naphthalene ring, and both Y.sup.1 and Y.sup.2 do not represent benzene rings. R.sup.1 to R.sup.3 each represent a hydrogen or a substituent group represented by *--Z.sup.1(R.sup.4).sub.d (* represents a bonding site). Z.sup.1 represents a single bond, a saturated hydrocarbon group having a valence of 2 or higher, or an unsaturated hydrocarbon group having a valence of 2 or higher, and the saturated hydrocarbon group or the unsaturated hydrocarbon group may have an ether bond and/or a thioether bond. R.sup.4 represents a hydrogen or a polymerizable substituent group.