Investigation of stimulated Raman scattering of ν1 and ν2 modes in CH4
✍ Scribed by M.A Gondal; A Dastgeer; Zain H Yamani; A Arfaj
- Book ID
- 104108426
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 228 KB
- Volume
- 377
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Using 355 nm excitation laser radiation, the stimulated Raman scattering (SRS) lines of methane between 14 000 and 26 000 cm À1 at different experimental conditions were recorded. Two sets of successive SRS lines manifesting the Raman shift in the m 1 and m 2 modes of vibration in the 1 A 1 electronic state of CH 4 have been assigned. The evolution of SRS lines at different pressures has been investigated. The energy dependence of SRS lines has revealed that SRS line due to higher order components become stronger than the fundamental at higher laser pump energy.
📜 SIMILAR VOLUMES
To complete the analysis of the complex infrared spectra of 14 NH 3 in the 4-to 8-µm region, we assigned nearly 1200 transitions in the 3ν 2 -ν 2 , ν 2 + ν 4 -ν 2 , ν 1 -ν 2 , ν 3 -ν 2 , 2ν 4 -ν 2 , and 4ν 2 -ν 2 hot bands using the upper state energy levels determined by our previous studies at 4 a