Quantum-beat photoelectron-imaging spectroscopy of Xe in the VUV

  title={Quantum-beat photoelectron-imaging spectroscopy of Xe in the VUV},
  author={Ruaridh Forbes and Varun Makhija and Jonathan G. Underwood and Albert Stolow and Iain Wilkinson and Paul Hockett and Rune Lausten},
  journal={Physical Review A},
Time-resolved pump-probe measurements of Xe, pumped at 133~nm and probed at 266~nm, are presented. The pump pulse prepared a long-lived hyperfine wavepacket, in the Xe $5p^5(^2P^{\circ}_{1/2})6s~^2[1/2]^{\circ}_1$ manifold ($E=$77185 cm$^{-1}=$9.57 eV). The wavepacket was monitored via single-photon ionization, and photoelectron images measured. The images provide angle- and time-resolved data which, when obtained over a large time-window (900~ps), constitute a precision quantum beat… 

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