Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5429864 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2011 | 9 Pages |
The pressure broadening and shift rates of the rubidium D2 absorption line 52S1/2â52P3/2 (780.24 nm) with CH4, C2H6, C3H8, n-C4H10, and He were measured for pressures â¤80 Torr using high-resolution laser spectroscopy. The broadening rates γB for CH4, C2H6, C3H8, n-C4H10, and He are 28.0, 28.1, 30.5, 31.3, and 20.3 (MHz/Torr), respectively. The corresponding shift rates γS are â8.4, â8.8, â9.7, â10.0, and 0.39 (MHz/Torr), respectively. The measured rates of Rb for the hydrocarbon buffer gas series of this study are also compared to the theoretically calculated rates of a purely attractive van der Waals difference potential. Good agreement is found to exist between measured and theoretical rates.
Research Highlights⺠Pressure broadening of the rubidium (Rb) D2 absorption line by hydrocarbon gases. ⺠Absorption spectroscopy of Rb. ⺠Diode pumped alkali metal vapor lasers (DPALs).