| 摘要 |
A holographic recording medium includes a recording layer. The recording layer includes a framework being expressed with the following general formula (1), In the above formula (1), Ar represents a substituted or unsubstituted group selected from benzothiophene group, naphthothiophene group, dibenzothiophene group, thienothiophene group, dithienobenzene group, benzothiazole group, naphthothiazole group, benzoisothiazole group, naphthoisothiazole group, phenothiazine group, phenoxathiin group, dithianaphthalene group, thianthrene group, thioxanthene group, and bithiophene group. In addition, n is an integer from 1 to 4.
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