Abstract
Two optical methods, cavity ring-down spectroscopy and photoacoustic spectroscopy, are applied to the measurement of the isotope ratio 18O/16O in water-vapor samples with a Nd3+:YAG pumped-dye laser. The combination band of (2ν 1 + ν 3) in the 960-nm region of water molecules is investigated for two standard water samples, the Vienna Standard Mean Ocean Water and the Standard Light Antarctic Precipitation. The results demonstrate that the two methods have the potential of compact systems for in-situ measurements of H2O isotope ratio in the environment.
© 2002 Optical Society of America
Full Article | PDF ArticleMore Like This
Yutaka Matsumi, Masahiro Kishigami, Noriyuki Tanaka, Masahiro Kawasaki, and Gen Inoue
Appl. Opt. 37(27) 6558-6562 (1998)
Vincenzo Spagnolo, Lei Dong, Anatoliy A. Kosterev, and Frank K. Tittel
Opt. Express 20(4) 3401-3407 (2012)
L. Joly, V. Zéninari, B. Parvitte, D. Courtois, and G. Durry
Opt. Lett. 31(2) 143-145 (2006)