title: Ultrafast response of third-order optical nonlinearity in glasses containing Bi(2)O(3).
abstract: We prepared nonresonant-type homogeneous glasses containing Bi(2)O(3) by the melting method. The thirdorder optical nonlinear susceptibility chi((3)) was found by third-order harmonic generation measurement to be 9.3 x 10(-12) esu. We attribute the nonlinearity of these glasses to the large molar refraction of glasses containing Bi(2)O(3). These glasses also exhibited an ultrafast response time below 200 fs by a degenerate fourwave mixing method using a femtosecond laser, indicating that the nonlinearity of these glasses originated mainly from pure electronic polarization.
authors.forename: N
authors.initials: N
authors.lastname: Sugimoto
authors.forename: H
authors.initials: H
authors.lastname: Kanbara
authors.forename: S
authors.initials: S
authors.lastname: Fujiwara
authors.forename: K
authors.initials: K
authors.lastname: Tanaka
authors.forename: K
authors.initials: K
authors.lastname: Hirao