מהי תופעת Raman scattering?
יש לי קטע בעבודה שנקשר לתופעה זו, ואני לא יודע כיצד ניתן להסביר זאת. Another phenomenon, known as Raman scattering, involves energy transfer between the incident light and the water molecules. The water molecules absorb some of the energy as rotationalvibrational energy and return the light as the incident energy, less this energy of rotation or vibration. The Raman signal for water occurs at 344 nm when the incident wavelength is 308 nm (XeCl laser). The water Raman signal is useful for maintaining wavelength calibration of the fluorosensor in operation, but has also been used in a limited way to estimate oil thickness, because the strong absorption by oil on the surface will suppress the water Raman signal in proportion to thickness. The point at which the Raman signal is entirely suppressed depends on the type of oil, since each oil has a different absorption strength
יש לי קטע בעבודה שנקשר לתופעה זו, ואני לא יודע כיצד ניתן להסביר זאת. Another phenomenon, known as Raman scattering, involves energy transfer between the incident light and the water molecules. The water molecules absorb some of the energy as rotationalvibrational energy and return the light as the incident energy, less this energy of rotation or vibration. The Raman signal for water occurs at 344 nm when the incident wavelength is 308 nm (XeCl laser). The water Raman signal is useful for maintaining wavelength calibration of the fluorosensor in operation, but has also been used in a limited way to estimate oil thickness, because the strong absorption by oil on the surface will suppress the water Raman signal in proportion to thickness. The point at which the Raman signal is entirely suppressed depends on the type of oil, since each oil has a different absorption strength