| 摘要 |
<p>An organic nonlinear optical crystal having a secondary nonlinear optical effect, a process for producing the same, and various secondary nonlinar optical elements prepared therefrom. This crystal is a laminated organic nonlinear optical crystal comprising a plurality of noncentrosymmetrical organic single crystal layers, wherein the single crystal layers satisfy the following requirements: (1) al least two of the single crystal layers are in optical contact with each other, (2) at least two of the noncentrosymmetrical organic single crystal layers in optical contact with each other have refractive indices different from each other, and (3) at least one of the single crystal layers has an optically smooth crystal face.</p> |
