안녕하세요.
2026년 4월 8일 (수), 성균관대학교 양자정보공학과 신상희 교수님을 모시고 세미나를 진행합니다.

지속가능 IT 기술 세미나는 IT 기술의 지속 가능성과 관련한 최신 연구 및 동향을 다루는 강의로, 다양한 전공 분야의 전문가를 초빙하여 깊이 있는 강연을 제공합니다.

관심 있는 학생 여러분의 많은 참여 바랍니다.

[세미나 상세 정보]

• ■일시: 2026년 4월 8일 (수) 17:00 ~ 17:50
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• ■장소: 제1공학관 23동 23219호
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• ■연사: 신상희 교수님 (성균관대학교 양자정보공학과)

■주제:  Characterization of Cryogenic Microwave Components for Quantum Technologies: Challenges and Solutions

■Abstract: Cryogenic quantum technologies like quantum computing and sensing heavily rely on RF and microwave components such as Josephson parametric amplifiers and RF circulators, operating at ultra-low temperatures, often tens of millikelvin (mK). However, these components are typically not designed or characterized for such extreme conditions. Manufacturers typically characterize the devices over only a limited temperature range (-40°C to +80°C). Accurate characterization at mK temperatures is crucial for verifying their performance but presents significant challenges due to the long, lossy connections between the test devices inside a dilution refrigerator and room temperature measurement instruments like vector network analyzers (VNAs). We are addressing these challenges by developing specialized methods for characterizing cryogenic components. For connectorized devices, we have developed a remote calibration/measurement unit for use at the mK stage of a dilution refrigerator. Additionally, we are developing on-wafer measurement capabilities at cryogenic temperatures, including a bespoke calibration substrate for measurements down to 4K. This presentation will provide an overview of our past and ongoing research in establishing S-parameter measurement capabilities for cryogenic quantum computing applications.

■Bio: Sang-Hee Shin received the M.Eng. and Ph.D. degrees from Imperial College London, London, U.K. He previously served as a Higher Research Scientist in the Department of Electromagnetic and Electrochemical Technologies at the National Physical Laboratory (NPL), Teddington, U.K. He was also an Assistant Professor at Sejong University, Seoul, South Korea, before joining Sungkyunkwan University (SKKU), where he is currently an Assistant Professor in the Department of Quantum Information Engineering. His research focuses on the intersection of high-frequency metrology and quantum technology, with particular emphasis on the design and fabrication of RF and microwave devices for cryogenic quantum computing applications.

• ■HOST: 전정훈 교수 (現 정보통신대학장 / 반도체시스템공학과)