Time-Resolved Vibrational Spectroscopy to Measure Lifetime of the E3g(v=3) state of Molecular Iodine

Abstract

The lifetime of the E3g(v=3) state of molecular iodine was measured in the gas phase at room temperature. The E3g state was selectively populated by two sequential nanosecond pulse laser excitation. Resolved molecular fluorescence for the B3u+← E3g was analyzed and the lifetime of the E(v=3) state, measured using a time-correlated single photon counting technique, is to be τ=21 (2) ns.

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