Project looks at use of fibre lasers in particle accelerators

According to the university, laser particle acceleration is affected by two main issues — namely efficiency and repetition rates — because lasers used at present consume too much power, and can only produce the required ultra-fast laser pulses around once per second to produce acceleration.

For many applications needing high repetition rates — particle acceleration, X-ray and gamma ray generation — this makes the use of lasers economically unacceptable and impairs the spread of laser applications in science, material science, environment, medicine and energy.

However, the university believes fibre lasers may help to resolve this issue.

Fibre lasers can operate at very high average powers because of their ability to manage the heat generated by laser action.

This allows the laser to produce pulses many thousands of times per second, allowing particle acceleration at high repetition rates necessary for real-world applications.

Fibres should also improve the overall power efficiency of suitable lasers by a factor of a thousand, making them more economically feasible for experiments.