교수

• · 2004-2007; Ph.D. in Electrical Engineering and Computer Science, University of Michigan, Ann Arbor
• · 2002-2004; M.S. in Electrical Engineering and Computer Science, University of Michigan, Ann Arbor
• · 1996-2002; B.S. in Electrical Engineering, Yonsei University

• · 2019.9-present; Associate Professor, Department of Physics and Astronomy, Seoul National University
• · 2018.3-2019.2; Visiting Professor, Department of Applied Physics and SLAC National Accelerator Laboratory, Stanford University
• · 2015.8-2019.8; Associate Professor, School of Electrical and Electronic Engineering, Yonsei University
• · 2011.3-2015.8; Assistant Professor, School of Electrical and Electronic Engineering, Yonsei University
• · 2008.1-2010.12; Postdoctoral Fellow, Lawrence Berkeley National Laboratory

우리 연구실에서는 초고속 레이저를 이용하여 저차원 양자 나노 물질에서 일어나는 "빛과 물질의 양자역학적 상호작용"을 연구합니다.

아래 3개의 내용은 핵심 연구 내용입니다.
- 2차원 반데르발스 물질 단원자층 및 이종접합 에서의 "밸리트로닉" 양자 물리학
- 2차원 및 3차원 위상절연체 기반한 "위상학적 상변이" 물리학
- 다이아몬드 NV 결함 및 2차원 물질을 이용한 "단일 광자 및 스핀 큐빗 아키텍쳐"

1. [invited review] C. In and H. Choi†, "Dirac Fermion and Plasmon Dynamics in Graphene and Three-Dimensional Topological Insulators", Advanced Optical Materials, 1801334 (2019)
2. S. Cha*, M. Noh*, J.-H. Kim, J. Son, H. Bae, D. Lee, H. Kim, J. Lee, H. Shin, S. Sim, S. Yang, S. Lee, W. Shim, C.-H. Lee, M.-H. Jo, J. S. Kim, D. Kim, and H. Choi†, "Generation, transport, and detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures", Nature Nanotechnology 13, 910-914 (2018)
3. S.-Y. Seo, J. Park, J. Park, K. Song, S. Cha, S. Sim, S. -Y. Choi, H. W. Yeom, H. Choi, and M. -H. Jo†, “Writing of Monolithic Integrated Circuits on a Two-Dimensional van der Waals Semiconductor with a Scanning Light Probe", Nature Electronics 1, 512-517 (2018)
4. S. Sim, D. Lee, A. V. Trifonov, T. Kim, S. Cha, J. H. Sung, S. Cho, W. Shim, M. -H. Jo†, and H. Choi†, "Ultrafast quantum beats of anisotropic excitons in atomically thin ReS2", Nature Communications 9, 351 (2018)
5. S. Sim*, D. Lee*, M. Noh, S. Cha, C. H. Soh, J. H. Sung, M. H. Jo, and H. Choi†, "Selectively tunable optical Stark effect of anisotropic excitons in atomically thin ReS2", Nature Communications 7, 13569 (2016)
6. S. Cha*, J. H. Sung*, S. Sim, J. Park, H. Heo, M.-H. Jo†, and H. Choi†, “1s intraexcitonic dynamics in monolayer MoS2 probed by ultrafast mid-infrared spectroscopy”, Nature Communications 7, 10768 (2016)
7. S. Sim, H. Jang, N. Koirala, M. Brahlek, J. Moon, J. H. Sung, J. Park, S. Cha, S. Oh, M.-H. Jo, J.-H. Ahn, and H. Choi†, “Ultra-high modulation depth exceeding 2,400 % in the optically-controlled topological surface plasmons”, Nature Communications 6, 8814 (2015)
8. D. B. Velusamy, R. H. Kim, S. Cha, J. Huh, R. Khazaeinezhad, S. H. Kassani, G. Song, S. M. Cho, S. H. Cho, I. Hwang, J. Lee, K. Oh, H. Choi†, and C. Park†, “Flexible transition metal dichalcogenide nanosheets for band selective photo-detection”, Nature Communications 6, 8063 (2015)