title: Spectral measurement of the nonlinear refractive index in ZnSe using self-bending of a pulsed laser beam.
abstract: The nonlinear refractive-index (n(2)) spectrum of ZnSe near the band gap (lambda(gap) approximately 450 nm) at 77 K was measured for the first time to our knowledge by using self-bending of a pulsed laser beam. The maximum nonlinearity, n(2) approximately 1.9 x 10(-8) cm(2)/W, measured by us is anomalously large, which cannot be explained by conventional thermally induced band-gap shrinkage.
authors.affiliation: Department of Electrical and Computer Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Ding
authors.forename: C L
authors.initials: CL
authors.lastname: Guo
authors.forename: G A
authors.initials: GA
authors.lastname: Swartzlander
authors.forename: J B
authors.initials: JB
authors.lastname: Khurgin
authors.forename: A E
authors.initials: AE
authors.lastname: Kaplan