Electron Spectroscopy of strontium in the vicinity of four-photon excitation of the 5p2 1S0 state. (August 2015)

• Record Type: Journal Article
• Authors: Dimitriou, A; Cohen, S
• Is Part Of: Journal of physics. Number 635(2015)
• Publication Date: 2015-08
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/635/9/092049
• Languages: English
• ISSNs: 1742-6588

Abstract

Synopsis: We present experimental photoelectron energy spectra and angular distributions from multiphoton ionization of Sr by dye laser pulses of ∼ns duration in the wavelength range of 715-737 nm and relatively low intensity (≈4×10 11 W·cm -2 ). The selected wavelength range comprises the highly correlated 5p 2 1 S0 autoionizing state, excited by four photons. Our results reveal the dominant (single and double) ionization pathways that were obscured in earlier experiments, based solely on the recording of ion and ionic-fluorescence yields.