Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium
Refine
Document Type
- conference proceeding (article) (2) (remove)
Language
- English (2)
Has Fulltext
- no (2)
Is part of the Bibliography
- no (2)
Keywords
Institute
- Fakultät Angewandte Natur- und Kulturwissenschaften (2) (remove)
Ultrafast time resolved reflection high energy electron diffraction with tilted pump pulse fronts
(2013)
We present time-resolved RHEED from a laser excited Pb(111) surface using a pulse front tilter for the compensation of the velocity mismatch of electrons and light. The laser pulses with tilted fronts were characterized by a spatially resolving cross correlator. The response of the surface upon excitation was observed to be less than 2 ps.
The gasflow created by a minaturized dielectric barrier discharge (DBD) plasma actuator is measured by a MEMS-based thermal conductivity gas sensor giving an indication of flow velocity and flow direction. The possiblity of several sensors in a small area gives a far better accuracy of local flow phenomena compared to conventional sensors. This is important for a better understanding of plasma- induced flow characteristics.