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In situ measurements of Raman scattering in clear ocean water

机译:清澈海水中拉曼散射的原位测量

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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 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 wave-length at 488 nm to be 2.6 × 10↑(-4) m↑(-1)[App]. 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. #1997 Optical Society of America
机译:通过使用受到良好保护的光纤电缆和水下电子外壳,我们进一步开发和改进了原型海洋弗劳恩霍夫线鉴别器。我们在佛罗里达海峡的清澈海水中进行了一系列原位测量。通过将简化后的数据与蒙特卡罗模拟结果进行比较,我们验证了在488 nm处激发波长为2.6×10↑(-4)m↑(-1)的拉曼散射系数B↓(r)[App ]。选择。 29,71-84(1990)],而不是14.4×10↑(-4)m↑(-1)[Appl。选择。 14,2116-2120(1975)]。发现拉曼散射系数的波长依赖性对水中光场没有显着影响。我们还将讨论导致错误的因素。该研究可以用作辐射传递理论中非弹性光散射的基础,并将允许通过原位测量来检测其他非弹性光,例如荧光。 #1997美国眼镜学会

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