18 citations · 19 across the 4 of their papers we have counts for
4 papers
When heat goes astray -- non-local heating in a semiconductor
Mahmoud Elhajhasan, Elena Trukhan, Katharina Dudde +8
Heating of semiconductor devices limits their performance and lifetime, which must be addressed by thermal management starting at the heat source. It is a common assumption that th…
Phonon Mean Free Path Spectroscopy By Raman Thermometry
Katharina Dudde, Mahmoud Elhajhasan, Guillaume Würsch +6
In this work, we exemplify on a bulk silicon sample that Raman thermometry is capable of phonon mean free path (PMFP) spectroscopy. Our experimental approach is similar to the vari…
Thermal analysis of GaN-based photonic membranes for optoelectronics
Wilken Seemann, Mahmoud Elhajhasan, Julian Themann +11
Semiconductor membranes find their widespread use in various research fields targeting medical, biological, environmental, and optical applications. Often such membranes derive the…
Optical and thermal characterization of a group-III nitride semiconductor membrane by microphotoluminescence spectroscopy and Raman thermometry
Mahmoud Elhajhasan, Wilken Seemann, Katharina Dudde +9
We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking micro-photoluminescen…