| 摘要 |
PURPOSE: To obtain the nonlinear optical material good in transparency and having a large value of high-order nonlinear susceptibility by dispersing the superfine particle of SnO2 with the diameter specified in the matrix of amorphous SnOx . CONSTITUTION: This nonlinear optical material is formed by dispersing the superfine particle of SnO2 having <=200Å, preferably <=100Å, diameter in the matrix of amorphous SnOx . The material is produced, for example, by forming the thin film of the amorphous SnOx matrix on the surface of a quartz substrate in 500-5000Åthickness, dispersing the superfine particle of SnO2 in the matrix and then oxidizing the superfine particle. The superfine particle of SnO2 is dispersed in the SnOx matrix preferably by ion plating, the superfine particle is dispersed in the matrix to form the thin film at 5-30Å/sec, and then the film is heated in oxygen. Consequently, the tertiary nonlinear susceptibility X (3) is increased.
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