Patent ID: 8367274

Claim:
A hologram recording material comprising: an organometallic compound comprising at least two kinds of metals, oxygen, and an aromatic group, and having an organometallic unit wherein two aromatic groups are bonded directly to one metal, which organometallic compound is obtained from starting compounds excluding compounds having an ethylenically unsaturated double bond; and a photopolymerizable compound comprising at least a monofunctional compound (A) having one polymerizable functional group in the molecule, wherein the photopolymerizable compound is a photopolymerizable organic monomer; wherein one of the at least two different metals is Si, and the metal(s) other than Si is/are selected from the group consisting of Ti, Zr, Ge, Sn, Al and Zn; wherein Si and the metal(s) other than Si are bonded through the oxygen atom; and wherein the organometallic unit is a unit wherein two aromatic groups are bonded directly to one Si atom.