论文信息 - Reflected optical second‐harmonic generation in the study of naturally occurring organic films at the ocean surface

Reflected optical second‐harmonic generation in the study of naturally occurring organic films at the ocean surface

The nonlinear spectroscopic technique of second-harmonic generation was used to study the surface properties of bulk and microlayer sea water samples. It was found that the majority of the surface active components present in the seawater were present in the microlayer sample. Increases in film pressure correlated with increases in the second-harmonic generation signal for the microlayer samples studied. This indicates that the second-harmonic generation technique may be used to noninvasively study and determine the surface properties of seawater.

[1] U. Brockmann,et al. Artificial surface films in the sea area near Sylt1 , 1982 .

[2] John J. Cullen,et al. Description of and results from a new surface microlayer sampling device , 1988 .

[3] Y. Shen,et al. Surface studies by optical second harmonic generation: An overview , 1985 .

[4] Heinrich Hühnerfuss,et al. The modification of X and L band radar signals by monomolecular sea slicks , 1983 .

[5] G. Gaines,et al. Insoluble Monolayers at Liquid-gas Interfaces , 1966 .

[6] Shen,et al. Orientation of surfactant molecules at a liquid-air interface measured by optical second-harmonic generation. , 1985, Physical review. A, General physics.

[7] Yaochun Shen. Principles of nonlinear optics , 1984 .

[8] Heinrich Hühnerfuss,et al. Wave damping by monomolecular surface films and their chemical structure. Part II: Variation of the hydrophilic part of the film molecules including natural substances , 1984 .

[9] Shen,et al. Observation of molecular reorientation at a two-dimensional-liquid phase transition. , 1985, Physical review letters.