Confined excitons

False-colour 3-D images of
the confined excitons
at 1.7 K, 8 K,
and 20 K with a laser power of 50 microwatts (image credit: C W Lai et al. 2004 Science 303 503)

False-colour 3-D images of
the confined excitons
at 1.7 K, 8 K,
and 20 K with a laser power of 50 microwatts (image credit: C W Lai et al. 2004 Science 303 503)