Raman scattering by pure water and seawater.

Measurements of the magnitude and spectral distribution of the Raman-scattering coefficients of pure water (b(rw)) and seawater (b(rs)) 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 b(rw) on wavelength that could be represented by a (lambda')(-5.3+/-0.3) relationship, where lambda' is the incident wavelength, or a lambda(-4.6+/-0.3) relationship, where lambda is the Raman-scattered wavelength, when normalized to units of photons. The corresponding relationships for normalization to energy are (lambda')(-5.5+/-0.4) and lambda(-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 b(rw) for the 3400-cm(-1) line was found to be (2.7 +/- 0.2) x 10(-4) 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.

[1]  V. Derr,et al.  Temperature dependence and cross sections of some Stokes and anti-Stokes Raman lines in ice lh. , 1975, Applied optics.

[2]  Effects of Raman scattering across the visible spectrum in clear ocean water: a Monte Carlo study. , 1993, Applied optics.

[3]  A. Weidemann,et al.  Raman scattering in ocean optics: quantitative assessment of internal radiant emission. , 1992, Applied optics.

[4]  Gene C. Feldman,et al.  Influence of penetrating solar radiation on the heat budget of the equatorial Pacific Ocean , 1990, Nature.

[5]  D. E. Gray,et al.  American Institute of Physics Handbook , 1957 .

[6]  C Hu,et al.  In situ measurements of Raman scattering in clear ocean water. , 1997, Applied optics.

[7]  K. Voss,et al.  Simulation of inelastic-scattering contributions to the irradiance field in the ocean: variation in Fraunhofer line depths. , 1993, Applied optics.

[8]  A. Weidemann,et al.  Optical modeling of clear ocean light fields: Raman scattering effects. , 1988, Applied optics.

[9]  Trevor Platt,et al.  Angular structure of underwater light field: Importance for ocean color models , 1997, Other Conferences.

[10]  Rudolf Kingslake,et al.  Applied Optics and Optical Engineering , 1983 .

[11]  Chuanmin Hu,et al.  Solar-stimulated inelastic light scattering in clear seawater , 1997, Other Conferences.

[12]  J. W. Hofstraat,et al.  Correction of Fluorescence Spectra , 1994 .

[13]  T. Platt,et al.  Oceanic Primary Production: Estimation by Remote Sensing at Local and Regional Scales , 1988, Science.

[14]  Robert Hans Stavn,et al.  Raman-scattering effects at the shorter visible wavelengths in clear ocean waters , 1990, Defense, Security, and Sensing.

[15]  A. C. Albrecht,et al.  Developments in the Theories of Vibrational Raman Intensities , 1970 .

[16]  Hiroshi Takuma,et al.  Absolute Measurement of Raman-Scattering Cross Sections of Liquids , 1971 .

[17]  R. C. Weast CRC Handbook of Chemistry and Physics , 1973 .

[18]  T. Platt,et al.  Estimation of new production in the ocean by compound remote sensing , 1991, Nature.

[19]  S. Montero,et al.  A compact formulation for the bond-polarizability theory of the Raman effect , 1976 .

[20]  Chin H. Chang,et al.  Seawater Temperature Measurement from Raman Spectra , 1972 .

[21]  Jasmine S. Bartlett,et al.  Comparison of model of sea-surface reflectance incorporating Raman scattering by water , 1997, Other Conferences.

[22]  V. I. Haltrin,et al.  Self-consistent solutions to the equation of transfer with elastic and inelastic scattering in oceanic optics: I. Model. , 1993, Applied optics.

[23]  R C Smith,et al.  Raman scattering and in-water ocean optical properties. , 1990, Applied optics.

[24]  G. Faris,et al.  Wavelength dependence of the Raman cross section for liquid water. , 1997, Applied optics.

[25]  Alan Weidemann,et al.  Modeling of elastic and inelastic scattering effects in oceanic optics , 1997, Other Conferences.

[26]  Robert H. Stavn,et al.  Raman Scattering Effects In Ocean Optics , 1988, Defense, Security, and Sensing.

[27]  G. Black,et al.  Wavelength dependence of Raman scattering cross sections from 200-600 nm , 2008 .

[28]  J. G. Grasselli,et al.  CRC atlas of spectral data and physical constants for organic compounds , 1973 .

[29]  G. Kattawar,et al.  Filling in of Fraunhofer lines in the ocean by Raman scattering. , 1992, Applied optics.

[30]  C. Mobley Light and Water: Radiative Transfer in Natural Waters , 1994 .

[31]  Kendall L. Carder,et al.  Interpretation of high-spectral-resolution remote-sensing reflectance , 1992, Optics & Photonics.

[32]  E. Arakawa,et al.  Optical Measurements of Liquid Water in the Vacuum Ultraviolet , 1969 .

[33]  杉原 滋彦,et al.  Contribution of Raman scattering to upward irradiance in the sea. , 1984 .