%0 Journal Article
%@ 0021-9606
%A Dupre, P
%A Gherman, T
%A Zobov, NF
%A Tolchenov, RN
%A Tennyson, J
%D 2005
%F discovery:2232
%I AMER INST PHYSICS
%J J CHEM PHYS
%K ENHANCED ABSORPTION-SPECTROSCOPY, OPTICAL PARAMETRIC OSCILLATOR, POTENTIAL-ENERGY SURFACE, TUNABLE DIODE-LASER, IN-SITU DETECTION, DOWN SPECTROSCOPY, RAPIDLY SWEPT, QUANTITATIVE-ANALYSIS, HETERODYNE-DETECTION, LINE PARAMETERS
%N 15
%P ? - ?
%T Continuous-wave cavity ringdown spectroscopy of the 8 nu polyad of water in the 25 195-25 340 cm(-1) range
%U https://discovery.ucl.ac.uk/id/eprint/2232/
%V 123
%X State-of-the-art experiments and calculations are used to record and assign the data obtained in the weakly absorbing blue energy region of the H2O spectrum. Continuous-wave cavity ringdown absorption spectroscopy with Doppler resolution is used to probe the range from 25 195 to 25 470 cm(-1) with an absorption sensitivity of similar to 1 parts per 10(9) (ppb)/cm. 62 lines of the polyad nu(OH)=8 are reported, of which 43 are assigned using variational nuclear calculations. The study includes absorption line intensities (in the range of 10(-28)-10(-26) cm/molecule) for all lines and self-broadening pressure coefficient for a few lines. The newly obtained energy levels are also reported. (c) 2005 American Institute of Physics.