Observation of S-Band Heads in the Resonance Raman Spectrum of Iodine Vapor
Resonance Raman scattering has been observed from iodine vapor excited by light above the dissociation limit. The spectra are characterized by a progression of vibrational lines observable through the 20th harmonic. These lines display complex structure, including peaks (distinct from that of the Q-branch) that can be regarded as band heads. Here we show how this spectral structure arises from vibration-rotation interactions and vibrational anharmonicity.
KeywordsIodine Vapor Spectroscopic Constant Dissociation Limit Band Head Resonance Raman Spectrum
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