Ville Tiukuvaara

Helped develop a mathematical framework for modelling the interactions of light with the novel optical thin films (metasurfaces), using full-wave EM simulations and subsequent data processing within an effective model (multipole expansion). Optimized nanofabrication process flows for metasurface prototypes, collaborating with internal and external scientists and finding creative solutions to overcome technical challenges. Supervisor for optics laboratories with a joy to teach students.

Used a variety of RF lab equipment to characterise new GaAs PAs and LNAs in development. Designed evaluation boards (PCBs) for WLAN/cellular front-end modules. Assisted in the layout of passive components (e.g. capacitors, waveguides) for GaAs power amplifiers (5 GHz). Performed electronics re-work (soldering, adjusting IC wire-bonds). Carried out a technology feasibility study for digital circuitry (fuses) on an in-house GaAs IC platform.

Assisted in the design of a temperature controller (embedded system) for a silicon/silica chip that contained several optical waveguide resonators, which leveraged a genetic algorithm to optimize the resonator temperatures.

Researched and selected components, designed a schematic, and wrote firmware for a PIC18 microcontroller in order to develop an analog video switcher capable of overlaying text on the video. Wrote low-level software in user-space and debugged a USB host controller driver in kernel-space for a confidential ARM-based Linux system. Modified a bootloader written in assembly for a PIC18 microcontroller in order to improve the reliability of the bootloader entry mechanism.

Developed a new modelling technique (mathematical formulation) for electromagnetic thin films (metasurfaces), using full-wave simulations, semi-analytical modelling (MATLAB), and fabricated proof-of-concept hardware (PCB) prototypes. Assembled and programmed a custom automated mechanical measurement system (programmed in Python) to characterize the near-field radiation of antennas in the 20 GHz - 40 GHz range.

Coursework in physics, microwave engineering, analog and digital electronics, telecom electronics, system modelling, programming, and mathematics.