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

@article{Forbes2018QuantumbeatPS,
  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},
  year={2018}
}
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… 

Figures and Tables from this paper

Time-resolved photoelectron imaging of complex resonances in molecular nitrogen.
TLDR
It is shown that by detecting individual photoelectron final states and their angular dependence, the FERMI free-electron laser can identify and differentiate quantum pathways within this complex system.
Molecular dynamics and photoionisation processes: from strong-fields to soft X-rays
This thesis comprises of a set of time and energy-resolved photoelectron spectroscopy studies of polyatomic molecules exposed to radiation ranging from the IR to soft X-ray region of the spectrum.
Spatiotemporal imaging of valence electron motion
TLDR
An all-optical approach to imaging an ultrafast valence electron wave packet in real time with a time-resolution of a few femtoseconds is demonstrated.
Raman Interferometry between Autoionizing States to Probe Ultrafast Wave-Packet Dynamics with High Spectral Resolution.
Photoelectron interferometry with femtosecond and attosecond light pulses is a powerful probe of the fast electron wave-packet dynamics, albeit it has practical limitations on the energy resolution.
VUV excited-state dynamics of cyclic ethers as a function of ring size.
TLDR
The influence of ring size on the VUV excited-state dynamics of the 3d Rydberg manifold is investigated using time-resolved photoelectron spectroscopy (TRPES, TRMS) and ab initio electronic structure calculations to attribute the observed dynamics to an increasing slope along the repulsive C-O bond coordinate as ring size decreases.
Effects of Hyperfine Interaction in Atomic Photoionization
The chapter is devoted to theoretical consideration of the role of hyperfine interaction in atomic photoionization. The interaction between nuclear spin and an atomic shell considered to give a small

References

SHOWING 1-10 OF 87 REFERENCES
Time-resolved multi-mass ion imaging: Femtosecond UV-VUV pump-probe spectroscopy with the PImMS camera.
TLDR
Preliminary time-resolved multi-mass imaging results from C2F3I photolysis indicate the depth and power of this measurement modality, with a range of photofragments readily observed, and many indications of complex underlying wavepacket dynamics on the excited state(s) prepared.
Isotope-shift and hyperfine-constant measurements of near-infrared xenon transitions in glow discharges and on a metastable Xe ( 3 P 2 ) beam
In this paper we discuss the hyperfine structure and isotope shift of the xenon atom. The study was performed using a semiconductor diode laser mounted in an extended-cavity configuration and
Role of nuclear spin in photoionization: Hyperfine-resolved photoionization of Xe and multichannel quantum defect theory analysis
High-resolution photoionization spectra following single-photon excitation from the $^{1}S_{0}$ ground state have been recorded for the seven most abundant isotopes of xenon in the range between the
Time-resolved photoelectron spectroscopy: from wavepackets to observables.
TLDR
A conceptual framework for time-resolved photoionization measurements is presented, together with discussion of relevant theory for the different aspects of TRPES, and simple models are used to illustrate the theory and key concepts are amplified by experimental examples.
High-resolution spectroscopy of xenon using a tunable Fourier-transform-limited all-solid-state vacuum-ultraviolet laser system
A tunable Fourier-transform-limited narrow-band vacuum-ultraviolet (VUV) laser system has been developed that is entirely based on solid-state laser technology. The possibility of generating
Non-adiabatic effects in chemistry revealed by time-resolved charged-particle imaging
Recent advances in photoelectron and photoion imaging techniques are reviewed. The general background to photofragmentation spectroscopy and, in particular, the information that can be extracted from
Maximum-information photoelectron metrology
Photoelectron interferograms, manifested in photoelectron angular distributions (PADs), are high-information, coherent observables. In order to obtain the maximum information from angle-resolved
Angular distributions of photoelectrons from resonant two-photon ionization of sodium through the 3 p 0 P 3 2 2 intermediate state
Angular distributions of photoelectrons from resonant two-photon ionization of sodium have been measured. Excitation and ionization were carried out with two pulsed lasers, one with a frequency
Vacuum-ultraviolet spectroscopy of Xe: Hyperfine splittings, isotope shifts, and isotope-dependent ionization energies
with abundances 124 Xe (0.0096%), 126 Xe (0.009%), 128 Xe (1.92%), 129 Xe (26.4%), 130 Xe (4.1%), 131 Xe (21.1%), 132 Xe (26.9%), 134 Xe (10.4%), and 136 Xe (8.9%). Our setup allows us to spectrally
...
...