Observation of quadrupole hyperfine structure in the v6 RQ3 (6) transition of 12CH335Cl |
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Authors: | TW Meyer JF Brilando CK Rhodes |
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Institution: | Lawrence Livermore Laboratory, University of California, Livermore, California 94550, USA |
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Abstract: | Quadrupole hyperfine structure has been observed in the v6RQ3(6) transition of 12CH335Cl using a stable CO2 laser oscillating on the 9.4 μm P(26) line. By heterodyning this laser with another which is locked to the 4.3 μm fluorescence dip of the 0001-000 CO2 transition, an accurate measurement of the hyperfine splittings has been made. The observed spectrum agrees, within experimental error, to the theoretical values evaluated without the need for a vibrational correction to the quadrupole interaction in the excited vibrational state. The hyperfine component closest to the center of the CO2 P(26) transition is determined to be 5.6 ± 0.1 MHz from the P(26) line center. |
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