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The terahertz wave is a next-generation electromagnetic wave (0.1-10 THz) that is receiving much attention in recent years as 6G communication is highly feasible in the near future. The terahertz wave & electromagnetic wave application lab mainly focuses on 1) high-power compact terahertz wave generation techniques and 2) electromagnetic wave application research.
Our lab is trying to implement high-power terahertz waves using the concept of a traveling wave amplifier using vacuum electronics microfabrication. We are pursuing next-generation communication/security/medical application research through freely implementing electromagnetic wave manipulation through focusing of electromagnetic wave beams, generation of multiple rotation modes, and interaction with materials.
Major research field
Microfab-vacuum electron devices in millimeter/THz, OAM electromagnetics, high power THz sources
Desired field of research
Research Keywords and Topics
Microfab-vacuum electron devices in millimeter/THz
6G wireless communications via OAM-MIMO based on E-band double beam vacuum device
Exotic electromagnetics transmission/propagation
OAM electromagnetics
Interaction between electrons and meta-structures/Smith-Purcell radiation
EM wave based material characterization
Remote detection of radioactive material based on electromagnetic waves
Research Publications
MORE1) I. G. Lee, W. Choi, J. Shin, and E. M. Choi* "Microscopic Analyses of Electrical Conductivity of Micromachined-Folded Waveguides Based on Surface Roughness Measurement for Terahertz Vacuum Electron Devices" IEEE Transactions on Terahertz Science and Technology vol.8, iss. 6, pp. 710-718, November (2018).
2) I. G. Lee, A. Sawant, W. Choi, J. W. Shin, and E. M. Choi* "Self-Driving, Energy-Recirculating Micromachined G-Band Folded Waveguide Traveling-Wave Tube" IEEE Transactions on Electron Devices vol. 65, iss. 8, pp. 3492-3499 (2018).
3) D. S. Kim, D. H. Yu, A. Sawant, M. S. Choe, I. G. Lee, S. G. Kim, and E. M. Choi* "Remote Detection of Radioactive Material using High-Power Pulsed Electromagnetic Radiation" Nature Communications 8, 15394 (2017).
Patents
1) 궤도 각운동량을 이용한 전이중 통신 안테나 설계 및 그 장치 [출원번호 10-2020-0063722]
2) 준광학 밀리미터 및 테라헤르츠파를 이용한 반도체 캐리어 수명 측정 [등록번호 10-2062701]
국가과학기술표준분류
- ED. 전기/전자
- ED05. 전기전자부품
- ED0507. 초고주파 발생소자
국가기술지도분류
- 기타 분야
- 060000. 국가기술지도(NTRM) 99개 핵심기술 분류에 속하지 않는 기타 연구
녹색기술분류
- 에너지원기술
- 원자력/핵융합
- 237. 핵융합 기타 기술
6T분류
- IT 분야
- 핵심부품
- 010115. 기타 정보통신 부품기술