Abstract

The high-intensity (about 1010 W cm-2) multiphoton ionisation spectrum of sodium atoms was measured under atomic beam conditions in the presence of a second intense laser field (about 1010 W cm-2). In addition to the expected two-photon resonances in the three-photon ionisation spectrum, peaks are observed which can be explained as resonantly enhanced five-photon processes.

Full Text
Published version (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