Advanced Imaging with Extreme Ultraviolet and Soft X-rays

Abstract:
Extreme Ultraviolet radiation (EUV) from high harmonic generation (HHG) results in ultrashort coherent pulses of 10's nm wavelength. Their duration, down to the attosecond range, allows probing ultrafast processes, while their degree of coherence at short wavelength allows coherent diffractive imaging techniques to be implemented with resolutions reaching the wavelength range. However, due to low reflectivity and being highly absorbed by most materials, there's still the need to improve EUV imaging methods.

In this work, we explored novel EUV HHG Imaging techniques, including the characterization of Lithium Fluoride detectors, generation of vortex beams and imaging with Spiral Zone Plates, a very promising phase contrast method.