Welcome to Gianluca Gregori's Research Group at the University of Oxford

Welcome to our home page. The purpose of this site is primarily to publicise research being performed by the Oxford High Energy Density Physics group, based at the Atomic and Laser Physics Department of the University of Oxford. We are leading research in the fields of inertial fusion energy, warm dense matter and high-intensity laser plasma interaction physics.

High energy density refers to energy densities exceeding 1011 Joules per cubic meter (J/m3), or equivalent, pressures exceeding 1 megabar (Mbar). High energy density experiments span a wide range of areas of physics including plasma physics, laser and particle beam physics, material science, intense radiation-matter interaction, and astrophysics. These exotic states of matter are created when a high power laser irradiates a solid or a gas target, forming a plasma. The directed energy from the laser is converted into thermal energy as well as charged particles and x-rays. The transition between the initial solid to the final plasma state is also of interest, as it unveils the loss and formation of long-range order with associated changes in the atomic structure of dense matter. This transition region is referred to as warm dense matter. Such plasmas are often of interest from the point of view of astrophysics, as many of the phenomena that occur are similar to those found in specific astrophysical context, for example, supernovae explosions, white dwarfs and interior of stars and planets.

In particular, our research work is focussed on the following areas:

  • X-ray scattering measurements of the microscopic properties of exotic plasmas created in laser-plasma experiments.
  • Structural dynamics of the solid-to-plasma phase transition.
  • Ultrafast spectroscopy of warm dense matter.
  • Electron and thermal transport in high-intensity laser plasma-experiments.
  • Fusion energy with lasers, with particular interests in the fast ignitor approach to inertial confinement fusion.

For a general overview of these research themes please follow the links below:

Check out our latest news for an update on the current research on fusion energy and warm dense matter science