In the last two decades, after the first light from the new Free Electron Lasers, either in the
UV (FLASH [1] and FERMI@ Elettra [2]) or X-ray (LCLS [3] and SACLA [4]), more and more …

In the past few years, X-ray phase-contrast and dark-field imaging have evolved to be
invaluable tools for non-destructive sample visualisation, delivering information inaccessible …

We introduce the application of maximum-likelihood (ML) principles to the image
reconstruction problem in coherent diffractive imaging. We describe an implementation of …

Newly available x-ray nanobeams in synchrotron radiation facilities open new research
avenues in the nanosciences. However, a significant challenge is to efficiently concentrate …

Due to their short wavelength, X-rays can in principle be focused down to a few nanometres
and below. At the same time, it is this short wavelength that puts stringent requirements on X …

The wave properties of light, particularly its coherence, are responsible for interference
effects, which can be exploited in powerful imaging applications. Coherent diffractive …

The emergence of hard X-ray free electron lasers (XFELs) enables new insights into many
fields of science. These new sources provide short, highly intense and coherent X-ray …

Multi-keV X-ray microscopy has been particularly successful in bridging the resolution gap
between optical and electron microscopy. However, resolutions below 20 nm are still …

We have employed ptychographic coherent diffractive imaging to completely characterize
the focal spot wavefield and wavefront aberrations of a high-resolution diffractive X-ray lens …

Coherent multi-spectral extreme ultraviolet beams have great potential for providing high
spatial and temporal resolution for microscopy and spectroscopy applications. But due to the …