Abstract
We show how multichannel nondegenerate four-wave mixing spectroscopy can be applied for fast acquisition of moderate-resolution two-photon resonance spectra of gas-phase samples, specifically, nitric oxide. We present the first results reported for broadband spectra, which can be obtained with a single laser pulse from a number of low-lying vibroelectric states of this molecule, specifically, the A 2Σ(υ = 0), A 2Σ(3), D 2Σ(0), and C2 Π(0). The two-photon resonant susceptibility is normalized to the known nonresonant susceptibility of N2, permitting comparison with previous data obtained by scanning techniques.
© 1983 Optical Society of America
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