Abstract

A very accurate measurement of the absorption coefficient of liquid water using a tunable diode laser double beam spectrometer is presented. The water absorption coefficient is 123 ± 1.8 cm⁻¹ at 2590 cm⁻¹ obtained by nonlinear least squares fitting to an exact transmittance formula including the effect of multiple reflections at all four window surfaces, using only the nominal values of the refractive indices of water and window of ZnSe.

Absorption measurements of water-vapor concentration, temperature, and line-shape parameters using a tunable InGaAsP diode laser

M. P. Arroyo and R. K. Hanson
Appl. Opt. 32(30) 6104-6116 (1993)

Quantitative measurements of turbid liquids via structured laser illumination planar imaging where absorption spectrophotometry fails

Guy-Oscar Regnima, Thomas Koffi, Olivier Bagui, Abaka Kouacou, Elias Kristensson, Jeremie Zoueu, and Edouard Berrocal
Appl. Opt. 56(13) 3929-3938 (2017)

Simultaneous diode-laser-based in situ measurement of liquid water content and oxygen mole fraction in dense water mist environments

Andrew R. Awtry, James W. Fleming, and Volker Ebert
Opt. Lett. 31(7) 900-902 (2006)

Measurements of pressure-broadening coefficients of NO and O₃ using a computerized tunable diode laser spectrometer

S. Lundqvist, J. Margolis, and J. Reid
Appl. Opt. 21(17) 3109-3113 (1982)

Split-pulse laser method for measuring attenuation coefficients of transparent liquids: application to deionized filtered water in the visible region

Marvin R. Querry, Philip G. Cary, and Richard C. Waring
Appl. Opt. 17(22) 3587-3592 (1978)