Table-top coherent and incoherent diffraction imaging with attosecond pulses
Date31st Jan 2024
Time05:00 PM
Venue HSB 209, Physics Seminar Hall
PAST EVENT
Details
The imaging of small structures has been crucial to new discoveries, for example in biology. Since the diffraction limit limits the resolution achievable in the visible range, the use of VUV and XUV radiation has been a major factor in revealing nanometre-sized structures such as viruses. Due to the technical difficulties of XUV radiation, coherent diffraction imaging has been developed as a robust lensless imaging technique that has been shown to achieve nanometre resolutions. In recent years, this approach has undergone several developments, with high harmonic generation from solids emerging as a possible new source of coherent VUV radiation. At the same time, diffractive imaging based on incoherent light has been demonstrated at large accelerators, raising the question of whether similar performance can be transferred to table-top sources. The key issues for this are the achievable flux and X-ray pulse duration, making a laser-based source a good candidate.
Speakers
Sven Froehlich, Ph. D.
Physics