Photo of Peter Hammond

Peter Hammond

Associate Professor, BSc DipAdvStSc PhD Manc.

  • The University of Western Australia (M460), 35 Stirling Highway, Room 4.53, Physics Building, Perth campus

    6009 Crawley

    Australia

  • The University of Western Australia (M013), 35 Stirling Highway, Room 4.53, Physics Building, Perth campus

    6009 Crawley

    Australia

  • 222 Citations
  • 8 h-Index
20012014
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Personal profile

Biography

Research Outline
The thrust of my experimental research has been to invent and develop experimental approaches that allow the study of atomic and molecular states that are very difficult, or impossible, to observe using existing experimental methodologies. The interest in the particular excited states targeted in these new experiments are that electron-electron correlations play an important role in the state formation and stability.

The most recent technique developed enables the observation of energetically narrow, and hence long lived, highly excited states formed by photon impact using extreme ultra violet light derived from a synchrotron radiation source. In the most recent experiments two previously unobserved series of doubly excited states in helium have been detected, despite helium having attracted the most intense experimental scrutiny over the last thirty years.

In a related experiment, but using electron impact, the decay products of highly excited states are separated using a momentum recoil technique to isolate the decay product, which in conventional experiments is embedded in a large signal from other excitation processes.

The momentum recoil spectrometer was developed for a related experiment in which atoms or molecules were excited to metastable singly excited states followed by a second excitation step using a narrow linewidth, pulsed photon beam formed by a frequency double pulsed dye laser. This experiment allows the study of the rotational structure of molecules formed by electron impact, a detail which has been previously inaccessible.

All three experiments provide new ways forward for experimental atomic and molecular physics where quantum dynamical descriptions of atoms and molecules can be explored in detail and clarity.

Roles and responsibilities

physics animations

Funding overview

ARC Infrastructure, ARC Discovery, multiple Access to Major Research Facilities Program funding, Experimental time at Synchrotrons in Italy, USA & Japan

Previous positions

Lecturer & Senior Lecturer, Dept of Physics & Astronomy, University of Manchester, Manchester, UK

Current projects

Time domain investigations using pulsed synchrotron light and electron impact to study long-lived atomic & molecular processes.

Development of an new type of electron spectometer capable of ultra high energy resolution.

Development of a suite of animations for use in the teaching of physics.

Industrial relevance

Near & beyond edge technology

Teaching overview

Development of animations for physics - see homepage for examples

Research

Synchrotron Light, Electron impact, photon & electron scattering, process timing on sub-nanosecond timescales, metastable atom detection

Keywords

  • Atomic physics
  • Charged particle storage and optics (electrostatic)
  • Instrumentation
  • Molecular physics
  • Spectroscopy
  • Sub-nanosecond timing of particles
  • Synchrotron radiation

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

  • 3 Similar Profiles
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electron impact Physics & Astronomy
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photoexcitation Physics & Astronomy
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Projects 2001 2013

Research Output 2001 2014

1 Citations

Evidences for isochronous behavior in electron and ion storage for a low energy electrostatic storage ring

Spanjers, T. L., Sullivan, M. R., Reddish, T. J. & Hammond, P. 1 Feb 2014 In : Nuclear Instruments and Methods in Physics Research A. 736, p. 118-123 6 p.

Research output: Contribution to journalArticle

A multiple-orbit time-of-flight mass spectrometer based on a low energy electrostatic storage ring

Sullivan, M. R., Spanjers, T. L., Thorn, P., Reddish, T. J. & Hammond, P. 2012 In : Journal of Physics: Conference Series. 388, p. 1

Research output: Contribution to journalReview article

Identification of isochronous operating mode for passive electrostatic storage ring

Spanjers, T. L., Sullivan, M. R., Reddish, T. J. & Hammond, P. 2012 In : Journal of Physics: Conference Series. 388, p. 1

Research output: Contribution to journalReview article

Stable operating conditions for a passive desktop sized electrostatic storage ring

Sullivan, M. R., Hammond, P., Thorn, P. & Arora, G. 2012 In : Journal of Physics: Conference Series. 388, p. 1

Research output: Contribution to journalReview article

An electrostatic storage ring for low kinetic energy electron collisions

Reddish, T. J., Tessier, D. R., Hammond, P., Alderman, A., Sullivan, M. R., Thorn, P. A. & Read, F. H. 2009 Journal of Physics: Conference Series 194 (2009). Williams, J. F., Buckman, S. & Bieske, E. J. (eds.). Kalamazoo, Michigan, USA ed. United Kingdom: IOP Publishing, Vol. 194, p. online

Research output: Chapter in Book/Report/Conference proceedingConference paper