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Proceedings Paper

Raman spectroscopy measurements of CO2 dissolved in water and CO2 bubbles for laser remote sensing in water
Author(s): Toshihiro Somekawa; Tomoki Takeuchi; Chihiro Yamanaka; Masayuki Fujita
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Paper Abstract

We examined the applicability of Raman spectroscopy as a laser remote sensing tool for monitoring the gases dissolved in water and gas bubbles. A frequency doubled Q-switched Nd:YAG laser (532 nm) is irradiated to CO2 gas bubbles generated by an air pump. The Raman signals at 1383 cm-1 from CO2 and 1645 cm-1 from water were detected. It has been shown that the CO2/H2O Raman signal ratio is dependent on the CO2 bubble rate.

Paper Details

Date Published: 14 October 2014
PDF: 6 pages
Proc. SPIE 9240, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2014, 92400J (14 October 2014); doi: 10.1117/12.2067088
Show Author Affiliations
Toshihiro Somekawa, Institute for Laser Technology (Japan)
Tomoki Takeuchi, Osaka Univ. (Japan)
Chihiro Yamanaka, Osaka Univ. (Japan)
Masayuki Fujita, Institute for Laser Technology (Japan)
Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 9240:
Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2014
Charles R. Bostater; Stelios P. Mertikas; Xavier Neyt, Editor(s)

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