Abstract
We have further developed and improved the prototype oceanic Fraunhofer line discriminator by using a well-protected fiber-optic–wire cable and in-water electronic housing. We conducted a series of in situ measurements in clear ocean water in the Florida Straits. By comparing the reduced data with the Monte Carlo simulation results, we verify the Raman scattering coefficient B r with an excitation wavelength at 488 nm to be 2.6 × 10 -4 m -1 [Appl. Opt. 29 , 71–84 (1990)], as opposed to 14.4 × 10 -4 m -1 [Appl. Opt. 14 , 2116–2120 (1975)]. The wavelength dependence of the Raman scattering coefficient is found to have an insignificant effect on the in-water light field. We also discuss factors that lead to errors. This study can be used as a basis for inelastic light scattering in the radiative transfer theory and will allow other inelastic light, e.g., fluorescence, to be detected with in situ measurements.
Original language | American English |
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Journal | Applied Optics |
Volume | 36 |
DOIs | |
State | Published - Jan 1 1997 |
Externally published | Yes |
Disciplines
- Life Sciences