Abstract
We prepared nonresonant-type homogeneous glasses containing Bi2O3 by the melting method. The third-order optical nonlinear susceptibility χ(3) was found by third-order harmonic generation measurement to be 9.3 × 10−12 esu. We attribute the nonlinearity of these glasses to the large molar refraction of glasses containing Bi2O3. These glasses also exhibited an ultrafast response time below 200 fs by a degenerate four-wave mixing method using a femtosecond laser, indicating that the nonlinearity of these glasses originated mainly from pure electronic polarization.
© 1996 Optical Society of America
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