Extended Figure Captions
for
Nanotechnology Research of NIST Scientists at JILA

Figure 3 shows plots of normalized differential transmission as a function of time for InGaAs quantum dots. Plots for two temperatures are show, 279 K and 335 K. The rise time decreases with increasing temperature, revealing the role of phonons in carrier relaxation.


Figure 4 shows both a scanning electron micrograph (SEM) of a fiber tip and the infrared transmittance of this tip at relevant infrared wavelengths. The SEM shows the tip to be 200 nm in diameter. The IR spectrum shows the transmissivity to be about 9 x 10-5 at 2.8 µm, dropping to about 4 x 10-5 at 2.9 µm, and then rising to 8 x 10-5 at 3.0 µm.


Figure 7 shows a transient four-wave mixing signal from a multiple quantum well as a function of both the laser photon energy and the time delay between the two incident pulses. At zero time delay, a well-resolved spectrum is seen. As the time delay increases to 0.8 ps, the intensity of the peaks decreases. At 1.6 ps no peaks are evident.