84 citations · 450 across the 22 of their papers we have counts for
23 papers
Electronic Symmetry and Femtosecond Coherence Dynamics of Renner-Teller-Mixed Neutral Vibronic States in Carbon Dioxide
Eric Liu, Shashank Kumar, Siddhant Pandey +7
When non-adiabatic coupling mixes electronic states of a molecule, vibronic states of different electronic symmetry become interleaved across the same spectral region. The symmetry…
Highly efficient DUV generation at 100 kHz via Yb pumped four-wave mixing in stretched hollow-core fibers
Ruaridh Forbes, Paul Hockett, Rune Lausten
We report the generation of the fifth harmonic of Yb at 206 nm with pulse energies exceeding 16 J and durations of approximately 100 fs at a repetition rate of 100 kHz. The deep…
Efficient (10) Generation of Vacuum Ultraviolet Femtosecond Pulses via Four-Wave Mixing in Hollow-Core Fibers
Ruaridh Forbes, Paul Hockett, Quentin Leterrier +1
We report the generation of the 5th harmonic of Ti:sapphire, at 160 nm, with more than 4~J of pulse energy, and a pulse length of 37 fs with a 1 kHz repetition rate. The VUV pul…
Ultrafast Molecular Frame Quantum Tomography
Luna Morrigan, Simon P. Neville, Margaret Gregory +8
We develop and experimentally demonstrate a methodology for a full molecular frame quantum tomography (MFQT) of dynamical polyatomic systems. We exemplify this approach through the…
Topical Review: Extracting Molecular Frame Photoionization Dynamics from Experimental Data
Paul Hockett, Varun Makhija
Methods for experimental reconstruction of molecular frame (MF) photoionization dynamics, and related properties - specifically MF photoelectron angular distributions (PADs) and co…
Molecular Frame Photoelectron Angular Distributions in Polyatomic Molecules from Lab Frame Coherent Rotational Wavepacket Evolution
Margaret Gregory, Paul Hockett, Albert Stolow +1
The application of a matrix-based reconstruction protocol for obtaining Molecular Frame (MF) photoelectron angular distributions (MFPADs) from laboratory frame (LF) measurements (L…
Multivariate Discrimination in Quantum Target Detection
Peter Svihra, Yingwen Zhang, Paul Hockett +4
We describe a simple multivariate technique of likelihood ratios for improved discrimination of signal and background in multi-dimensional quantum target detection. The technique c…
Multidimensional quantum-enhanced target detection via spectro-temporal correlation measurements
Yingwen Zhang, Duncan England, Andrei Nomerotski +4
In this work we investigate quantum-enhanced target detection in the presence of large background noise using multidimensional quantum correlations between photon pairs generated t…
Quantum Beat Photoelectron Imaging Spectroscopy of Xe in the VUV
Ruaridh Forbes, Varun Makhija, Jonathan Underwood +4
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^{\…
Angle-resolved RABBIT: theory and numerics
Paul Hockett
Angle-resolved (AR) RABBIT measurements offer a high information content measurement scheme, due to the presence of multiple, interfering, ionization channels combined with a phase…
Time-resolved multi-mass ion imaging: femtosecond UV-VUV pump-probe spectroscopy with the PImMS camera
Ruaridh Forbes, Varun Makhija, Kévin Veyrinas +8
The Pixel-Imaging Mass Spectrometry (PImMS) camera allows for 3D charged particle imaging measurements, in which the particle time-of-flight is recorded along with position…
Bootstrapping to the Molecular Frame with Time-domain Photoionization Interferometry
Claude Marceau, Varun Makhija, Dominique Platzer +5
Photoionization of molecular species is, essentially, a multi-path interferometer with both experimentally controllable and intrinsic molecular characteristics. In this work, XUV p…
Response to 'Comment on "Time delays in molecular photoionization"': Extended Discussion & Technical Notes
Paul Hockett, Eugene Frumker
In a comment on our article Time delays in molecular photoionization [1], Baykusheva & Wörner reproduce canonical scattering theory, and assert that our results are inconsistent wi…
ePSproc: Post-processing suite for ePolyScat electron-molecule scattering calculations
Paul Hockett
ePSproc provides codes for post-processing results from ePolyScat (ePS), a suite of codes for the calculation of quantum scattering problems, developed and released by Luchesse \&…
Augmented Reality with Hololens: Experiential Architectures Embedded in the Real World
Paul Hockett, Tim Ingleby
Early hands-on experiences with the Microsoft Hololens augmented/mixed reality device are reported and discussed, with a general aim of exploring basic 3D visualization. A range of…
Time Delay in Molecular Photoionization
P. Hockett, E. Frumker, D. M. Villeneuve +1
Time-delays in the photoionization of molecules are investigated. As compared to atomic ionization, the time-delays expected from molecular ionization present a much richer phenome…
Coherent Control of Photoelectron Wavepacket Angular Interferograms
Paul Hockett, Matthias Wollenhaupt, Thomas Baumert
Coherent control over photoelectron wavepackets, via the use of polarization-shaped laser pulses, can be understood as a time and polarization-multiplexed process. In this work, we…
Maximum information photoelectron metrology
P. Hockett, C. Lux, M. Wollenhaupt +1
Photoelectron interferograms, manifested in photoelectron angular distributions (PADs), are a high-information, coherent observable. In order to obtain the maximum information from…
Complete Photoionization Experiments via Ultrafast Coherent Control with Polarization Multiplexing II: Numerics & Analysis Methodologies
P. Hockett, M. Wollenhaupt, C. Lux +1
The feasibility of complete photoionization experiments, in which the full set of photoionization matrix elements are determined, using multiphoton ionization schemes with polariza…
General phenomenology of ionization from aligned molecular ensembles
Paul Hockett
Single and multi-photon ionization of aligned molecular ensembles is examined, with a particular focus on the link between the molecular axis distribution and observable in various…
Complete photoionization experiments via ultra-fast coherent control with polarization-multiplexing
Paul Hockett, Matthias Wollenhaupt, Christian Lux +1
Photoelectron angular distributions (PADs) obtained from ionization of potassium atoms using moderately intense femtosecond IR fields (10Wcm) of various polariz…
Probing Ultrafast Dynamics with Time-resolved Multi-dimensional Coincidence Imaging: Butadiene
Paul Hockett, Enrico Ripani, Andrew Rytwinski +1
Time-resolved coincidence imaging of photoelectrons and photoions represents the most complete experimental measurement of ultrafast excited state dynamics, a multi-dimensional mea…
Probing Asymmetric Molecules with High Harmonic Generation. [Original manuscript as prepared on 22/05/2011]
E. Frumker, N. Kajumba, J. B. Bertrand +8
Asymmetric molecules look different when viewed from one side or the other. This difference influences the electronic structure of the valence electrons, thereby giving stereo sens…