Figure 1From: Room temperature spin diffusion in (110) GaAs/AlGaAs quantum wells Schematic drawing of TSG setup and TSG signals. (a) k A and k B represent both the pump beams, k P is the probe beam, and k R is the reference beam. (b) TSG signal as a function of delay time at room temperature for two excitation powers: 2 and 18 mW.Back to article page