Information recording medium and method of manufacturing the same
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United States of America Patent
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Aug 11, 2015
Grant Date -
Sep 24, 2009
app pub date -
Mar 12, 2009
filing date -
Mar 18, 2008
priority date (Note) -
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Abstract
An information recording medium manufacturing method includes steps of forming, on a support, a recording layer containing a polymer compound having an azobenzene structure, irradiating the recording layer with first writing light to form a first light-diffracting structure having a three-dimensional relief pattern on the surface of the recording layer, fixing the relief pattern by forming a deformation preventing layer on the surface of the recording layer, and irradiating the recording layer having the fixed relief pattern with second writing light to forcedly inhibit deformation caused by the movement of molecules, thereby forming a second light-diffracting structure having a refractive index change inside the recording layer.
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