Abstracts

With the development of improved multilayer Laue lenses (MLLs) [1] and sensitive wavefront diagnostics [2,3], it is now possible to focus X-ray beams at synchrotron radiation facilities and X-ray free-electron lasers to spot sizes of 5 nm or less. These are diffractive optics made by layer deposition, in which the layer period varies inversely with distance from the optical axis and the layers are wedged [4] to ensure that the tilt of the layers satisfies the Bragg condition. [...]

crystallography and 3D diffraction microscopy. Our recent MLLs achieve a numerical aperture (NA) of ~ 0.02 at a photon energy of 17.5 keV (or 0.71 Å wavelength), meaning that beam converges onto the focus over an angular range of 40 mrad or 1.3º. [...]

Protein crystallography is one of the most successful methods for biological structure determination. This technique requires many diffraction snapshots to get 3D structural information of the studied protein. [...]

High resolution X-ray imaging of biological samples is usually limited by radiation damage. One way to overcome this limitation is to work at higher photon energies, where the dominant interaction with matter occurs through inelastic or Compton scattering. [...]

The advancement of new technologies such as solar cells relies on the development of measurement techniques that allow us to characterize and understand fundamental parameters and processes within the devices of interest. Laboratory laser-based microscopy has proven to be an easy and successful way to characterize many solar cell parameters. [...]

The pioneer synthesis of nanocrystals (NCs) published in 1993 opened up new routes to prepare highly monodisperse quantum dots. This, together with the outstanding electronical, optical and surface properties observed in different kinds of such semiconductor nanocrystals, has triggered an increased scientific interest on these nanomaterials. [...]

We present a novel externally seeded cascaded free-electron laser (FEL) scheme based on two echo-enabled har-monic generation stages to obtaining unprecedented bunching independently on the final FEL wavelength.Externally seeded free-electron lasers (FELs) based on harmonic up-conversion schemes represent the mostsuccessful approach for obtaining radiation with laser-like properties at short wavelengths. They are howeverlimited in the shortest achievable wavelengths, as the harmonic conversion efficiency decreases with increasingharmonic number, even for echo-enabled harmonic generation (EEHG) [1] [...]

A concept and design of a 50-Gbps 4-channel dense wavelength division multiplexing (DWDM) optical transceiver is being developed. It is designed in a 45-nm monolithic silicon-photonics CMOS technology. [...]

Results are presented on searches for additional Higgs bosons using the CMS Run 2 data. The searchcovers both low mass (below 125 GeV), in the diphoton and ditau channel, and higher masses in thedecays into b jets and a top pair. [...]

Results are presented on searches for additional Higgs bosons using the CMS Run 2 data. The searchcovers both low mass (below 125 GeV), in the diphoton and ditau channel, and higher masses in thedecays into b jets and a top pair. [...]