A5088598279- Advanced X-ray Imaging Techniques
- Advanced Chemical Physics Studies
- Optical Imaging and Spectroscopy Techniques
- Atmospheric Ozone and Climate
- Particle Detector Development and Performance
- Crystallography and Radiation Phenomena
- Laser-Plasma Interactions and Diagnostics
- Analytical Chemistry and Sensors
- Catalysis and Oxidation Reactions
- Optical Coherence Tomography Applications
- Photoacoustic and Ultrasonic Imaging
- Laser-Matter Interactions and Applications
- CCD and CMOS Imaging Sensors
- Fullerene Chemistry and Applications
- Advanced Electron Microscopy Techniques and Applications
- Boron and Carbon Nanomaterials Research
Technische Universität Berlin
2017-2023
National Institute for Subatomic Physics
2022
National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
2017
Philipps University of Marburg
2011-2012
Recent theoretical work has identified functionalized diamondoids as promising candidates for the tailoring of fluorescent nanomaterials. However, experiments confirming that optical gap tuning can be achieved through functionalization have, up until now, found only systems where fluorescence is quenched. We address this shortcoming by investigating a series methylated adamantanes. For first time, class shown to fluoresce in gas phase. In order understand evolution and electronic structure...
Extreme ultraviolet (XUV) and X-ray free-electron lasers enable new scientific opportunities. Their ultra-intense coherent femtosecond pulses give unprecedented access to the structure of undepositable nanoscale objects transient states highly excited matter. In order probe ultrafast complex light-induced dynamics on relevant time scales, multi-purpose end-station CAMP at laser FLASH has been complemented by novel multilayer-mirror-based split-and-delay unit DESC (DElay Stage for CAMP)...
The electronic properties of sp2/sp3 diamondoids in the crystalline state and gas phase are presented. Apparent differences experimentally observed by resonance Raman spectroscopy crystalline/gas absorption measurements were investigated density functional theory computations. Due to a reorganization molecular orbitals phase, HOMO (highest occupied orbital) LUMO (lowest unoccupied energy gaps lowered significantly 0.5 eV–1 eV. π → π* transition is responsible for large both phases. It...
A main field in biomedical optics research is diffuse optical tomography, where intensity variations of the transmitted light traversing through tissue are detected. Mathematical models and reconstruction algorithms based on finite element methods Monte Carlo simulations describe transport inside determine differences absorption scattering coefficients. Precise knowledge sample's surface shape orientation required to provide boundary conditions for these techniques. We propose an integrated...
Abstract First measurements are presented from a newly commissioned two-photon absorption (TPA) setup at Nikhef. The characterisation of the various components system is discussed. Two planar silicon sensors, one being electron collecting and hole collecting, characterised with detailed charge collection time resolution. TPA spot determined to have radius 0.975(11) μm length 23 in silicon. trigger resolution shown be maximally 30.4 ps. For both uniform observed over pixels, pixel side...
In recent years optical methods became increasingly popular for pre-clinical research and small animal imaging. One main field in biomedical optics is the diffuse tomography (DOT). Many new systems were invented imaging breast cancer detection. combination with progress development of markers, detectors near infrared light sources, these have become a formidable source information. Most detect transmitted which passes through an object one observes intensity variations on detector side. The...