We developed microdrones capable of maneuvering in three degrees of freedom of 2D motion-translational movements in the forward-backward and left-right directions, and rotational yaw [1]. We established a proof of principle for 2D feedback control. The design involves microdrones equipped with four nanomotors, which are controlled by modulating the power and polarization of two unfocused laser beams of distinct wavelengths.
In this project, in collaboration with our partner at IPHT Jena, we aim to complete the development of light-driven microdrones, achieving 3D maneuverability combined with feedback control for nanometer-scale precise motion. Additionally, we will implement microfluidic chips to enhance the experimental capabilities and enable applications of microdrones while improving sustainability. Using this fully developed microdrone system, we will strive to employing a microdrone equipped with a resonant gold nanotip to precisely scan the membrane of a living cell within a liquid medium. The final objective is to measure the tip-enhanced Raman scattering spectra of membrane proteins showcasing the significant potential of microdrones as a robust platform for performing high-precision sensing and manipulation tasks.
[1] X. Wu, R. Ehehalt, G. Razinskas, T. Feichtner, J. Qin, B. Hecht, Light-driven microdrones.
Nat. Nanotechnol. 17, 477-484 (2022). https://doi.org/10 .1038/s41565-022-01099-z Your tasks:
Contribute to the fabrication of microdrones using FIB, EBL, transfer, etc.
Optical setup for 3D microdrone control
Fast feedback control loop based on an event-based camera integrated with a SoC/FPGA board
Tip-enhanced Raman scattering experiments of biological specimens
Your qualification:
Master’s degree or equivalent in physics or related fields (such as biophotonics, nanotechnology)
Desired Skills and Qualifications:
Enthusiasm for cutting-edge research and innovation
Strong problem-solving drive and ambition for excellence
Solid background in electromagnetics
Experience with optical experiments
Familiarity with SoC or FPGA programming (a plus)
Programming skills (e.g., Python, MATLAB) beneficial
Proficient in English (spoken and written)
Independent, responsible, and a team player
The position is fully funded and open immediately until it is filled.
The project is embedded in the university's Graduate School of Science and Technology, which offers all components of a structured docotral program, including a three person theis committee, regular feedback meetings and a wide variety of qualification offers (www.graduateschools.uni-wuerzburg.de/science-and-technology).
Condensed-Matter Physics at the University of Würzburg ranks 1st out of 61 universities in Germany according to the 2024 DFG Funding Atlas (www.dfg.de/en/news/facts-figures/funding-atlas). In the field of Physical Sciences in general the University of Würzburg ranks 7th in Germany and 23rd in Europe according to the Nature Index 2024 (www.nature.com/nature-index/research-leaders/2024), intended to measure “high-impact” publications.