GEOMETRICAL DEPENDENCE OF TRANSIENT NONLINEARITIES IN MULTIPLE QUANTUM WELL STRUCTURES
R. J. Manning, A. MILLER, D. W. CRUST +1 more
The transient grating technique has been used with sub-picosecond pulses to study the magnitude, dynamics and saturation of the excitonic non-linear refraction in room temperature GaAs/AlGaAs multiple quantum wells. The dependence of grating decay time with sample orientation in the phase conjugate geometry, was measured and interpreted in terms of intra-well and cross-well contributions to the highly anisotropic carrier diffusion.
Le Journal de Physique Colloques•Jun 1, 1988•0 citations