Quantum-state-resolved 2-level femtosecond rotational coherence spectroscopy: Determination of rotational constants at medium and high J in Li2, a simple diatomic system
R M. Williams, J M. Papanikolas, J , . Rathje, S R. Leone
Rotational wave packet recurrences originating form a single 2-level coherent rotational superposition are observed in the E(1Σ+g) state of Li2. The rotational wave packet is created by ultrafast laser excitation from a specific ro-vibrational level in the A(1Σ+u) state selected by cw laser excitation. Using this technique the rotational constant and the centrifugal distortion constant are determined for high J levels of the V=9 vibrational level in the E(1Σ+g) state. This technique is discussed via-a-vis traditional forms of ultrafast rotational coherency spectroscopy where information primarily at low J is obtained.
and Papanikolas, J.
Quantum-state-resolved 2-level femtosecond rotational coherence spectroscopy: Determination of rotational constants at medium and high J in Li<sub>2</sub>, a simple diatomic system, Chemical Physics Letters
(Accessed December 1, 2023)