Topic: Teraherz Optics & Photonic systems (10:15 - 11:15)
Prof. dr. Jaime Gómez-Rivas
Eindhoven University of Technology
Title: Is it possible to make a perfect optical cavity?
Using an unique home-made THz near-field microscope, we demonstrate a perfect cavity for electromagnetic radiation at THz frequencies. This cavity consists of a periodic array of gold rods, or metasurface, designed to fully suppress the radiation leakage. This suppression of radiation losses, in combination with the negligible material losses of gold at THz frequencies, makes it possible to trap electromagnetic waves for arbitrarily long times to the array. The mechanisms responsible for this light trapping and how to observe it in the near-field will be discussed in detail.
Gómez-Rivas is professor at TU/e. His research focuses on light-matter coupling at a nanoscale and THz time-domain spectroscopy. He is co-author of over 150 articles and co-inventor of over 20 patent applications. He also works as editor for the Journal of Applied Physics and is co-founder of the start-up TeraNova.