Dr SaeJune Park

SaeJune Park

Senior Lecturer (Associate Professor) in Terahertz Electronics
Head of Terahertz Laboratory & EECS Academic Laser Safety Officer

School of Electronic Engineering and Computer Science
Queen Mary University of London
ORCID Google Scholar LinkedIn

Research

Terahertz (THz), Spectroscopy, Photonics, Sensors, Environmental Science, Future telecommunication

Interests

More info can be found on the Park Lab website: http://parklab.uk

I am a Senior Lecturer (Associate Professor) in Terahertz Electronics & the Head of the Terahertz Laboratory 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 38 journal papers, 18 of which as first/corresponding author, and have citations over 1,500 and an h-index over 18 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.

Publications

solid heart iconPublications of specific relevance to the Centre for Electronics

2024

Relevant PublicationTerahertz metamaterial-prism hybrid sensors for microorganisms detection
Kim YC, Jun SW, Park S and Ahn Y-H
Optics Express, Optica Publishing Group 
09-12-2024
bullet iconAsynchronous optical sampling of on-chip terahertz devices for real-time sensing and imaging applications.
Mosley CDW, Tucker R, Nixon JPR, Park S, Li L, Freeman JR, Wood CD, Linfield EH, Davies AG and Cunningham JE
Optics Express, Optica Publishing Group vol. 32 (16), 27940-27949.  
18-07-2024
bullet iconMicroscopy of terahertz spoof surface plasmons propagating on planar metamaterial waveguides
Sulollari N, Park S, Salih M, Rubino P, Burnett A, Li L, Linfield E, Davies G, Cunningham J and Dean P
Apl Photonics, American Institute of Physics vol. 9 (3) 
26-03-2024

2023

Relevant PublicationTerahertz Dielectric Characterization of Three-Dimensional Organotypic Treated Basal Cell Carcinoma and Corresponding Double Debye Model
Nourinovin S, Rahman MM, Park SJ, Hamid H, Philpott MP and Alomainy A
Ieee Transactions On Terahertz Science and Technology, Institute of Electrical and Electronics Engineers (Ieee) vol. 13 (3), 246-253.  
31-03-2023
Relevant PublicationAn ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators
Nourinovin S, Park SJ, Abbasi QH and Alomainy A
Epj Applied Metamaterials, Edp Sciences vol. 10 
01-01-2023

2022

Relevant PublicationDetection of Polystyrene Microplastic Particles in Water Using Surface-Functionalized Terahertz Microfluidic Metamaterials
Park SJ and Ahn YH
Applied Sciences, Mdpi vol. 12 (14) 
14-07-2022
Relevant PublicationDesign of a Split Ring Resonator Integrated with On-Chip Terahertz Waveguides for Colon Cancer Detection
Park SJ, Tucker R, Pickwell-MacPherson E and Cunningham JE
Advanced Theory and Simulations, Wiley 
01-07-2022

2021

Relevant PublicationEnhanced Terahertz Spectral-Fingerprint Detection of α-Lactose Using Sub-Micrometer-Gap On-Chip Waveguides
Park SJ, Parker-Jervis R and Cunningham J
Advanced Theory and Simulations, Wiley-Blackwell 
07-12-2021
Relevant PublicationEffect of mesa geometry on low-terahertz frequency range plasmons in two-dimensional electron systems
Dawood A, Park SJ, Parker-Jervis R, Wood CD, Li L, Linfield EH, Davies AG, Cunningham JE and Sydoruk O
Journal of Physics D, Iop Publishing vol. 55 (1) 
06-10-2021
Relevant PublicationCoherent terahertz microscopy of modal field distributions in micro-resonators
Sulollari N, Keeley J, Park S, Rubino P, Burnett AD, Li L, Rosamond MC, Linfield EH, Davies AG, Cunningham JE and Dean P
Apl Photonics, Aip Publishing vol. 6 (6) 
01-06-2021
Relevant PublicationTerahertz magnetoplasmon resonances in coupled cavities formed in a gated two-dimensional electron gas.
Park SJ, Zonetti S, Parker-Jervis RS, Wu J, Wood CD, Li LH, Davies AG, Linfield EH, Sydoruk O and Cunningham JE
Optics Express, Optica Publishing Group vol. 29 (9), 12958-12966.  
13-04-2021
Relevant PublicationMetal-Organic Hybrid Metamaterials for Spectral-Band Selective Active Terahertz Modulators
Yoo HK, Bin Cho S, Park SJ, Ahn YH, Kang C, Hwang I-W and Lee JW
Applied Sciences, Mdpi vol. 11 (6) 
19-03-2021
Relevant PublicationTunable terahertz band-stop filter using strongly coupled split ring resonators integrated with on-chip waveguide
Parker-Jervis RS, Park SJ and Cunningham JE
Journal of Applied Physics, Aip Publishing vol. 129 (5) 
01-02-2021

2020

Relevant PublicationDetermination of Permittivity of Dielectric Analytes in the Terahertz Frequency Range Using Split Ring Resonator Elements Integrated with On-Chip Waveguide
Park SJ and Cunningham J
Sensors, Mdpi vol. 20 (15) 
30-07-2020
Relevant PublicationEffect of Substrate Etching on Terahertz Metamaterial Resonances and Its Liquid Sensing Applications
Park SJ and Cunningham J
Sensors, Mdpi vol. 20 (11) 
01-06-2020

2019

Relevant PublicationIdentifying different types of microorganisms with terahertz spectroscopy.
Yoon SA, Cha SH, Jun SW, Park SJ, Park J-Y, Lee S, Kim HS and Ahn YH
Biomedical Optics Express, Optica Publishing Group vol. 11 (1), 406-416.  
23-12-2019
Relevant PublicationInvestigation of Sensitivity Distribution in THz Metamaterials Using Surface Functionalization
Cha SH, Park S and Ahn YH
Current Optics and Photonics 
01-12-2019
Relevant PublicationTunable broadband terahertz polarizer using graphene-metal hybrid metasurface.
Meng K, Park SJ, Li LH, Bacon DR, Chen L, Chae K, Park JY, Burnett AD, Linfield EH, Davies AG and Cunningham JE
Optics Express, Optica Publishing Group vol. 27 (23), 33768-33778.  
04-11-2019
Relevant PublicationIncreasing the sensitivity of terahertz split ring resonator metamaterials for dielectric sensing by localized substrate etching.
Meng K, Park SJ, Burnett AD, Gill T, Wood CD, Rosamond M, Li LH, Chen L, Bacon DR, Freeman JR, Dean P, Ahn YH, Linfield EH, Davies AG and Cunningham JE
Optics Express, Optica Publishing Group vol. 27 (16), 23164-23172.  
30-07-2019

2018

Relevant PublicationPhototransistors with Negative or Ambipolar Photoresponse Based on As‐Grown Heterostructures of Single‐Walled Carbon Nanotube and MoS2
Nguyen VT, Yim W, Park SJ, Son BH, Kim YC, Cao TT, Sim Y, Moon Y, Nguyen VC, Seong M, Kim S, Ahn YH, Lee S and Park J
Advanced Functional Materials, Wiley vol. 28 (40) 
12-08-2018

2017

Relevant PublicationCarbon Nanotubes as Etching Masks for the Formation of Polymer Nanostructures
Yim W, Park SJ, Han SY, Park YH, Lee SW, Park HJ, Ahn YH, Lee S and Park J-Y
Acs Applied Materials & Interfaces, American Chemical Society (Acs) vol. 9 (50), 44053-44059.  
08-12-2017
Relevant PublicationAccurate Measurement of THz Dielectric Constant Using Metamaterials on a Quartz Substrate
Park S and Ahn YH
Current Optics and Photonics 
01-12-2017
Relevant PublicationEffects of Organic Thin Films on Local Resonance of Metamaterials under Photoexcitation
Song M-S, Hwang I-W, Lee C-L, Kang C, Kee C-S, Park S, Ahn YH, Park DJ and Lee JW
Current Optics and Photonics 
01-08-2017
Relevant PublicationSensing viruses using terahertz nano-gap metamaterials.
Park SJ, Cha SH, Shin GA and Ahn YH
Biomedical Optics Express, Optica Publishing Group vol. 8 (8), 3551-3558.  
07-07-2017
Relevant PublicationTerahertz slot antenna devices fabricated on silver nanowire network films
Hong JT, Park SJ, Park J-Y, Lee S and Ahn YH
Optical Materials Express, Optica Publishing Group vol. 7 (5) 
24-04-2017
Relevant PublicationFabrication of terahertz metamaterials using electrohydrodynamic jet printing for sensitive detection of yeast
Tenggara AP, Park SJ, Yudistira HT, Ahn YH and Byun D
Journal of Micromechanics and Microengineering, Iop Publishing vol. 27 (3) 
06-02-2017
Relevant PublicationCrystallization Kinetics of Lead Halide Perovskite Film Monitored by In Situ Terahertz Spectroscopy
Park SJ, Kim AR, Hong JT, Park JY, Lee S and Ahn YH
The Journal of Physical Chemistry Letters, American Chemical Society (Acs) vol. 8 (2), 401-406.  
05-01-2017

2016

Relevant PublicationDifferential Transmission Spectra of Terahertz Metamaterial Resonances for Sensing Microorganisms
Park SJ and Ahn YH
Korean Journal of Optics and Photonics, Korean Journal of Optics and Photonics vol. 27 (6), 229-232.  
25-12-2016
Relevant PublicationEffective Sensing Volume of Terahertz Metamaterial with Various Gap Widths
Park SJ, Yoon SAN and Ahn YH
Journal of The Optical Society of Korea, Korean Journal of Optics and Photonics vol. 20 (5), 628-632.  
25-10-2016
Relevant PublicationCharacterization of chemical doping of graphene by in-situ Raman spectroscopy
Kim SJ, Park SJ, Kim HY, Jang GS, Park DJ, Park J-Y, Lee S and Ahn YH
Applied Physics Letters, Aip Publishing vol. 108 (20) 
16-05-2016
Relevant PublicationDielectric constant measurements of thin films and liquids using terahertz metamaterials
Park SJ, Yoon SAN and Ahn YH
Rsc Advances, Royal Society of Chemistry (Rsc) vol. 6 (73), 69381-69386.  
01-01-2016

2015

Relevant PublicationTerahertz metamaterial sensing on polystyrene microbeads: shape dependence
Park SJ, Jun SW, Kim AR and Ahn YH
Optical Materials Express, Optica Publishing Group vol. 5 (10), 2150-2155.  
08-09-2015
Relevant PublicationSuppressing spontaneous polarization of p-GaN by graphene oxide passivation: Augmented light output of GaN UV-LED
Jeong H, Jeong SY, Park DJ, Jeong HJ, Jeong S, Han JT, Yang S, Kim HY, Baeg K-J, Park SJ, Ahn YH, Suh E-K, Lee G-W, Lee YH and Jeong MS
Scientific Reports, Springer Nature vol. 5 (1) 
14-01-2015

2014

Relevant PublicationSensitive detection of yeast using terahertz slot antennas
Park SJ, Son BH, Choi SJ, Kim HS and Ahn YH
Optics Express, Optica Publishing Group vol. 22 (25), 30467-30472.  
01-12-2014
Relevant PublicationSubstrate effects on terahertz metamaterial resonances for various metal thicknesses
Park SJ and Ahn YH
Journal of The Korean Physical Society, Korean Physical Society vol. 65 (11), 1843-1847.  
01-12-2014
Relevant PublicationDetection of microorganisms using terahertz metamaterials
Park SJ, Hong JT, Choi SJ, Kim HS, Park WK, Han ST, Park JY, Lee S, Kim DS and Ahn YH
Scientific Reports, Springer Nature vol. 4 (1) 
16-05-2014
Relevant PublicationDielectric substrate effect on the metamaterial resonances in terahertz frequency range
Park DJ, Park SJ, Park I and Ahn YH
Current Applied Physics, Elsevier vol. 14 (4), 570-574.  
01-04-2014

2013

Relevant PublicationTerahertz conductivity of reduced graphene oxide films.
Hong JT, Lee KM, Son BH, Park SJ, Park DJ, Park J-Y, Lee S and Ahn YH
Optics Express, Optica Publishing Group vol. 21 (6), 7633-7640.  
20-03-2013

Grants

solid heart iconGrants of specific relevance to the Centre for Electronics
solid heart iconMicroplastic sensors based on terahertz metasurface
SaeJune Park
£449,855 EPSRC Engineering and Physical Sciences Research Council
01-05-2024 - 30-04-2027