Abstract
The feasibility of determining nuclear quadrupole hyperfine splittings in the ground electronic state of a polyatomic molecule using a double resonance quantum beat method has been demonstrated. Pyrimidine molecules were coherently excited into single rotational states of the S 0 20 1 (13a 1) vibrational level. The resulting hyperfine level coherences were then probed, after a variable time delay, by excitation to the S 1 O 0 level with subsequent fluorescence detection. Analysis showed that the quadrupole structure in the 20 1 (13a 1) level is similar to that previously measured in the vibrational ground state. Applications of this method and possible experimental extensions are discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
