Collisional Orientation Transfer Faciliated Polarozation Spectroscopy

Details Collisional Orientation Transfer Faciliated Polarozation Spectroscopy Collisional Orientation Transfer Faciliated Polarozation Spectroscopy

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..conferd03b&link_type=abstract

"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec

Physics

Mini-Symposium: Spectroscopic Perturbations

Scientific paper

Collisional orientation transfer facilitated V-type double-resonance polarization spectroscopy technique was applied to study the A-b complex of Rb2 and Cs2. Since spectral congestion makes it difficult to find isolated pump transitions for heavy molecules such as Rb2 and Cs2, this technique significantly enlarges the range of rotational levels that can be observed per vibrational level. Collisional satellite lines with ΔJ up to 58 were observed in the Rb2 polarization experiment. In the Cs2 experiment, due to weaker Franck-Condon factors, collisional satellite lines with ΔJMax equals to 12 were observed.
Collisional orientation transfer in polarization spectroscopy was first observed with buffer gas pressure of several hundred Torr. The high pressure led to loss of spectral resolution from collisional broadening. Only 1 to 3 Torr of argon buffer gas pressure was used in our experiments to obtain spectra with much higher resolution. Among the six types of possible probe signals, we assigned and analyzed the signals from the V type excitation scheme. The data was used in the global deperturbation analysis of the A-b complex of both Rb2 and Cs2.
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