Free-space and on-chip terahertz biosensing and other applications

主讲人：SaeJune Park,Queen Mary University of London

时间：2024年12月5日18:00

地点：ZOOM 851 9901 7142

举办单位：数理学院

主讲人介绍：Dr SaeJune Park is a Senior Lecturer (Associate Professor) in THz Electronics and the Head of the THz Laboratory in the Centre for Electronics (also known as Antennas ＆ Electromagnetics Research Group), School of Electronic Engineering and Computer Science at Queen Mary University of London in the UK. He is also a Professor by courtesy in the Department of Physics at Ajou University in South Korea. He got his education back in South Korea including his UG in Physics and PhD in Applied Physics at Ajou University and moved to the UK to work as a postdoc at the University of Leeds. Then, he joined Queen Mary as an academic 3 years ago. He is currently leading his research team called Park Lab which has five researchers. 1 PI, 3 PhD students, and 1 postdoc. His team focuses on the development of free-space and on-chip THz sensors and general THz science. He has recently been awarded the EPSRC New Investigator Award and the KSEAUK Outstanding Early Career Investigator Award. He works extensively with industrial and academic partners across the globe.

内容介绍：Terahertz (THz) plasmonic and metamaterial structures have extensively been investigated in developing novel applications such as biosensing, beamsteering, and communication using free-space THz spectroscopy. The dielectric properties of plasmonic and metamaterial structures can be designed by controlling the geometrical parameters such as gap width, gap length, sidearm length, and metal thickness. The effective scattering cross-section between incident THz waves and the sample under test can be significantly enhanced by using plasmonic and metamaterial structures. Also, fluidic channel-integrated metamaterials have the potential to examine samples in the aquatic environment. On the other hand, on-chip THz spectroscopy can significantly reduce the cross-section between propagating THz waves and plasmonic and metamaterial structures owing to the in-plain nature of the on-chip THz waveguides. This allows us to develop novel applications using plasmonic structures and meta-atoms integrated on-chip THz devices. In this seminar, we explore how THz plasmonic and metamaterial structures can be used to develop biosensing and other applications using free-space and on-chip THz spectroscopy.