Figure 2.

Differential absorption signal vs. time delay for different photon wavelengths in In2O3nanocrystals. Photoexcitation was accomplished with 3.81 eV (325 nm) photons under a pump fluence of 250 μJ/cm2at room temperature. The inset shows a fit to the differential absorption data for probing wavelength at 750 nm by a single-exponential decay

Othonos et al. Nanoscale Research Letters 2009 4:526-531   doi:10.1007/s11671-009-9275-0