One- and two-photon detachment of O−
(2016) Physical Review A — Vol. 94, n° 2, p. 023407-023401 (2016)
Files
PhysRevA94023407-2.pdf
Restricted Access - Adobe PDF
- 863.4 KB
Details
- Authors
- Abstract
- Cross sections for one- and two-photon detachment of O−(1s22s22p5 2Po) have been determined in a joint experimental and theoretical study. The absolute measurement is based on the animated-crossed-beam technique,which is extended to the case of pulsed lasers, pulsed ion beams, and multiphoton detachment. The ab initio calculations employ R-matrix Floquet theory, with simple descriptions of the initial bound state and the residual oxygen atom which reproduce well the electron affinity and ground-state polarizability. For one-photon detachment, the measured and computed cross sections are in good mutual agreement, departing significantly from previous reference experiments and calculations. The generalized two-photon detachment cross section, measured at the Nd:YAG laser wavelength, is in good agreement with the R-matrix Floquet calculations. Long-standing discrepancies between theory and experiment are thus resolved.
- Affiliations
Citations
Génévriez, M., Urbain, X., Dochain, A., Cyr, A., Dunseath, K. M., & Terao-Dunseath, M. (2016). One- and two-photon detachment of O−. Physical Review A, 94(2), 023407-023401. https://doi.org/10.1103/PhysRevA.94.023407 (Original work published 2016)