Using microstructures for laser-induced x-ray source enhancement from plasma produced by femtosecond and nanosecond lasers
Laser-produced plasma X-ray sources are compact and inexpensive and provide intense short x-ray pulses, enhancement of this pulses will be beneficial for future researches and various applications. One attractive way to increase x-ray pulses generation is to use a structured surface targets that has a low average density and high local density. By using also a high-Z material, higher X-ray intensity with a continuous smooth spectrum can also be achieved. The research aims to achieve a significant increase of x-ray pulses both in the hard and soft x-ray regions using different targets with defined characteristics.
For the hard x-ray energy region (>1keV), thick layers of low density foam doped by medium and/or heavy elements will be used as a target for a nanosecond Nd: YAG laser at UCD Dublin. For the soft x-ray energy region (<1keV), surface layer with microstructures like nanowires, nanorods, nanoholes array or microspheres will also be used as a targets for the 0.1 TW fs laser at CTU in Prague and 25 TW fs laser at PALS laboratory in Prague.
The results of the experiments will be complemented by numerical modeling of the x-ray source.
Mr. Ellie Floyd Barte finished his bachelor’s degree from University of Santo Tomas in Manila, Philippines, in 2009. He also earned his M. Sc. Degree in Applied Physics Major in Medical Physics from the same university. He worked at St. Luke’s Medical Center – Global City, Philippines as a medical physicist in the Radiation Oncology Department. He was involved in various quality assurance programs for their facility.
Mr. Barte joined EXTATIC Erasmus Mundus Joint Doctorate program in September 2014. His project title is “Using microstructures for laser-induced x-ray source enhancement from plasma produced by femtosecond and nanosecond lasers“.