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Details of Grant 

EPSRC Reference: GR/A11632/01
Title: AF: EXPERIMENTAL COLLECTIVE INTERACTIONS BETWEEN RELATIVISTIC ELECTRONS AND ELECTROMAGNETIC WAVES
Principal Investigator: Cross, Professor A
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Physics
Organisation: University of Strathclyde
Scheme: Advanced Fellowship (Pre-FEC)
Starts: 01 March 2002 Ends: 28 February 2007 Value (£): 236,714
EPSRC Research Topic Classifications:
Lasers & Optics
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine Manufacturing
Communications Healthcare
Related Grants:
Panel History:  
Summary on Grant Application Form
Lasers are designed to produce electromagnetic radiation (microwaves, infrared, visible light, ultra-violet light) with a narrow range of frequencies. Most lasers are based on a light wave moving electrons around within atoms, however this proposal plans an investigation of lasers (sometimes called Masers when the light wave is at microwave frequencies) where the electrons have been released from the atoms into an `electron beam' and the light modifies and reduces the electron speed. The presence of the light wave causes the electrons to release their energy as more light but importantly the electric and magnetic fields within the emitted light wave have the same orientation and phase as those in the original wave and can therefore combine to produce a wave of higher amplitude. This additive effect is called `phase coherence' and the emission is called stimulated emission. Two of the main aims of this proposal are to investigate new free-electron-type laser amplifiers which are frequency tunable, and to use novel oscillators to generate extremely high power radiation pulses. A further aim of this proposal is to investigate how to generate powerful, extremely short pulses of radiation, either as single pulses or as trains of pulses consisting of short spikes of light having amplitudes and durations which are not readily predictable (being of `chaotic' nature). Radiation with these properties has many potential applications in science and technology, and an understanding of these phenomena would represent a significant advance in physics.
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Organisation Website: http://www.strath.ac.uk