title: Absorption spectra of liquid water and aqueous buffers between 0.3 and 3.72 THz.
abstract: We have developed a terahertz absorption spectrometer suitable for strongly absorbing liquids such as water, and have precisely measured the absorption spectrum of water between 0.3 and 3.72 THz (10-124 cm(-1)). We have also examined the absorption spectra of aqueous 50 mM potassium phosphate buffers at pH 3 and 8, and find that they do not differ significantly from pure distilled de-ionized water.
authors.affiliation: Department of Physics, University of California, Santa Barbara, California 93106, USA. jingx@physics.ucsb.edu
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: Kevin W
authors.initials: KW
authors.lastname: Plaxco
authors.forename: S James
authors.initials: SJ
authors.lastname: Allen