The DX centre
T.N. Morgan
Semiconductor Science and Technology
Using a CO2 laser, we have observed the dispersive behavior of the third-order nonlinear optical susceptibility, χ(3)(-ω3,ω1, ω1,-ω2), in n-InSb in a magnetic field. The resonances occur when the difference frequency ω2-ω1 is near the cyclotron frequency, or twice the cyclotron frequency. A connection is drawn between the dispersion of χ(3) and the spontaneous and stimulated Raman scattering from Landau levels. A simple semiclassical theory shows the correct polarization properties and resonance behavior of χ(3) and is qualitatively in agreement with experiment. © 1971 The American Physical Society.
T.N. Morgan
Semiconductor Science and Technology
R. Ghez, M.B. Small
JES
J.K. Gimzewski, T.A. Jung, et al.
Surface Science
Douglass S. Kalika, David W. Giles, et al.
Journal of Rheology