BONNER 1 has recently recorded seven frequencies (1619, 3009, 1341, 3069, 950, 2880 and 1654) in the Raman spectrum of liquid ethylene. In the earlier work of Dickinson, Dillon and Rassetti 2 on ...

Highly excited vibrational states of polyatomic molecules are prepared and studied by combining laser spectroscopy, molecular beam techniques and high resolution dispersed fluorescence spectroscopy.

In Stokes scattering, the electron gets excited and then comes to a vibrational level by absorption of energy. Thus, the molecule has lower energy and longer wavelength compared to the original ...