PhD in Physics

This PhD project investigates ultrafast optical switching in plasmonic nanogaps, leveraging their exceptional ability to confine electromagnetic fields into sub-nanometer volumes. The research will focus on developing optical setup to achieve controlled ultrafast switching driven by intense femtosecond laser pulses. Special emphasis will be placed on understanding the dynamics of non-linear optical effects, such as multi-photon absorption and hot-electron generation, and their role in switching mechanisms. Additionally, the research will investigate temperature and material-dependent properties to optimize switching efficiency and stability. The outcomes are expected to develop energy-efficient optical switches for next-generation photonic circuits and quantum technologies.