Foreign Object Detection by Sub-Terahertz Quasi-Bessel Beam Imaging. - Gyeongsik Ok; Sungwook Choi; Kyunghyun Park; Hyang Sook Chun (Sensors, 2013)

Invisible Security Printing on Photoresist Polymer Readable by Terahertz Spectroscopy. - Hee Jun Shin; Min-Cheol Lim; Kisang Park; Sae-Hyung Kim; Sungwook Choi; Gyeongsik Ok (Sensors, 2017)

Highly Sensitive Detection of 4-Methylimidazole Using a Terahertz Metamaterial. - Hee Jun Shin; Hae Won Jang; Gyeongsik Ok (Sensors, 2018)

140 GHz Ultra-Long Bessel-Like Beam with Near-Wavelength Beamwidth. - Gyeongsik Ok; Kee Jai Park (Sensors, 2020)

Detection of Escherichia coli O157: H7 Using Automated Immunomagnetic Separation and Enzyme-Based Colorimetric Assay. - Ji Young Park; Kisang Park; Gyeongsik Ok; Hyun-Joo Chang; Tae Jung Park; Sungwook Choi; Min-Cheol Lim (Sensors, 2020)