Extreme ultraviolet microscopy and wavefront sensing are key elements for next-generation
ultrafast applications, such as chemically-resolved imaging, focal spot diagnostics in pump …

Table-top extreme ultraviolet (EUV) microscopy offers unique opportunities for label-free
investigation of biological samples. Here, we demonstrate ptychographic EUV imaging of …

Bright, coherent soft X-ray radiation is essential to a variety of applications in fundamental
research and life sciences. To date, a high photon flux in this spectral region can only be …

We report on an approach for quantitative characterization of laser beam quality, wavefronts,
and lens aberrations using ptychography with a near-infrared supercontinuum laser …

Low Gain Avalanche Diodes (LGADs) are silicon sensors designed to achieve an internal
gain in the order of 10 through the impact ionization process. The development of LGADs …

The Shanghai soft X-ray free-electron laser (SXFEL) user facility project started in 2016 and
is expected to be open to users by 2022. It aims to deliver ultra-intense coherent …

Spectro-ptychography offers improved spatial resolution and additional phase spectral
information relative to that provided by scanning transmission X-ray microscopes. However …

Alternating projection based methods, such as ePIE and rPIE, have been used widely in
ptychography. However, they only work well if there are adequate measurements (diffraction …

Hybrid pixel detectors have become indispensable at synchrotron and X-ray free-electron
laser facilities thanks to their large dynamic range, high frame rate, low noise, and large …

Single particle imaging (SPI) is a promising method of native structure determination, which
has undergone fast progress with the development of x-ray free-electron lasers. Large …