Holger Graef
Embedded software developer, PhD in semiconductor physics
Software & electronics
Racine
Racine is a tool that enables researchers to keep track of their samples. It runs on a central server in the local network of your research institute and can be accessed using a web browser. Features include file import from Samba servers, sharing samples while protecting individual users' notes, LaTeX typesetting and many more. I started working on Racine during my research work in the Physics Laboratory at Ecole Normale Supérieure. Today, it is used in laboratories in Germany, France and Switzerland.
El Poisson
El Poisson is yet another hacked Big Mouth Billy Bass. It was a little contribution to Moorea's 2023 music video "Un effort". This particular hack features a Bluetooth audio sink and motor control via bluetooth. The python GUI is easy to use and can even connect to Ableton via a virtual MIDI interface, so that the fish's movements can be programmed as a MIDI track.
Physics
During my PhD in semiconductor physics under the supervision of Dr. Bernard Plaçais and Prof. Edwin Hang Tong Teo, I have participated in the following publications:
- A corner reflector of graphene Dirac fermions as a phonon- scattering sensor. Nature Communications 10, 2428 (2019)
- Ultra-long wavelength Dirac plasmons in graphene capacitors. Journal of Physics Materials 1, 01LT02 (2018)
- Landau velocity for collective quantum Hall breakdown in bilayer graphene. Physical Review Letters 121, 136804 (2018)