Abstract

The first measurements of angle-resolved photoelectron flux as a function of the time delay Δt between excitation and ionization in a molecular (1+1′) resonance-enhanced multiphoton ionization process are reported. The process studied is ▪ in which the intermediate state alignment, and hence the angle-resolved photoelectron signal, evolve as a result of hyperfine depolarization. The results are in good agreement with predictions that use values for the hyperfine coupling constants that have previously been deduced for NO(A 2Σ+, v = 1). This experiment illustrates a general method for the study of intramolecular depolarization mechanisms.

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