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School of Electronic Engineering and Computer Science

SaeJune Park, PhD


Head of Terahertz Laboratory & Assistant Professor (UK Lec.) in Terahertz Electronics at QMUL Professor, by courtesy, at Ajou

Room Number: ENG 255
Office Hours: By appointment


More info can be found on the Park Lab website:

I am the Head of the Terahertz Laboratory and an Assistant Professor (UK Lec.) in Terahertz Electronics at the School of Electronic Engineering and Computer Science, Queen Mary University of London (QMUL) and a Professor, by courtesy, in the Department of Physics at Ajou University. I have published over 35 journal papers, ~two-thirds of which as first/corresponding author, and have citations over 1,000 and an h-index over 15 according to Google Scholar.

My PhD programme back in South Korea focused on developing dielectric/biological sensors in the THz frequency region using THz time-domain spectroscopy. One of my papers reported microbial sensing for the first time with THz metasurface. I also investigated perovskite’s crystallisation kinetics using THz spectroscopy and studied a phase transition of perovskite film with an abrupt switch in the growth dimensionality.

Then, I moved to the UK and took up a Research Fellow position at the University of Leeds (2018) where I expanded my expertise in on-chip THz spectroscopy. On-chip THz spectroscopy enables the examination of samples/systems with highly confined in-plane THz waves. I demonstrated on-chip THz tuneable plasmonic devices based on a two-dimensional electron gas channel. I also reported a novel technique to measure the THz permittivity of unknown dielectric materials even for an extremely small amount of specimens using resonators integrated with on-chip waveguides.

In 2021, I joined QMUL to lead the Terahertz Laboratory. Since then, I have been trying to integrate my experience in free-space THz spectroscopy into on-chip THz devices. For example, I reported a significant enhancement in fingerprint detection of an extremely small amount of lactose using on-chip THz devices. A meta-atom probe integrated with the on-chip THz waveguide was also developed to detect colorectal cancer. I am continuing to work on developing free-space THz applications as well and recently reported a study on selective detection of microplastic particles in water using surface-functionalised THz microfluidic metasurface.


  • ECS644U/752P Microwave and Millimetrewave Electronics (Module organiser)



Research Interests:

  • Free-space/on-chip THz biosensors based on plasmonic/metamaterials
  • Physics of low-dimensional materials in THz frequency range
  • FEM/FDTD simulations
  • More info can be found here:
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