Je. Boyd et al., Direct observation of terahertz surface modes in nanometer-sized liquid water pools - art. no. 147401, PHYS REV L, 8714(14), 2001, pp. 7401
The far-infrared absorption spectrum of nanometer-sized water pools at the
core of AOT micelles exhibits a pronounced resonance which is absent in bul
k water. The amplitude and spectral position of this resonance are sensitiv
e to the size of the confined water core. This resonance results from size-
dependent modifications in the vibrational density of states, and thus has
far-reaching implications for chemical processes which involve water seques
tered within small cavities. These data represent the first study of the te
rahertz dielectric properties of confined liquids.