Raman scattering by pure water and seawater

Jasmine S. Bartlett, Kenneth J. Voss, Shubha Sathyendranath, Anthony Vodacek

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

Measurements of the magnitude and spectral distribution of the Raman-scattering coefficients of pure water (brw) and seawater (brs) are presented. Two independent measurements of the spectral distribution of the Raman-scattering coefficient of pure water were made for incident wavelengths ranging from 250 to 500 nm. These measurements revealed a strong dependence of brw on wavelength that could be represented by a (λ)−5.3 ± 0.3 relationship, where λ is the incident wavelength, or a l24.660.3 relationship, where l is the Raman-scattered wavelength, when normalized to units of photons. The corresponding relationships for normalization to energy are (λ)−5.5±0.4 and λ−4.8±0.3, respectively. These relationships are found to be consistent with resonance Raman theory for an absorption wavelength of 130 nm. The absolute value of brw for the 3400-cm−1 line was found to be (2.7 ± 0.2) 3 1024 m−1 for an incident wavelength of 488 nm, which is consistent with a number of earlier reports. The difference between the magnitudes of the Raman-scattering coefficients for pure water and seawater was statistically insignificant.

Original languageEnglish (US)
Pages (from-to)3324-3332
Number of pages9
JournalApplied Optics
Volume37
Issue number15
DOIs
StatePublished - May 20 1998

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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