Figure 6.

a Low-temperature PL transients measured at various λdet for a constant excitation wavelength λexc = 750 nm in the multilayer In0.4Ga0.6As/GaAs QD chain sample. λdet = 995 nm corresponds to the PL maximum. Laser pulse presents the response of the detecting system. b PL transients measured under two different λexc at the position of the PL maximum, λdet = 995 nm

Mazur et al. Nanoscale Research Letters 2010 5:991-1001   doi:10.1007/s11671-010-9590-5