Presentations

    Planned

• Quantum sensing with NV centers, Europe-Korea Conference 2025 (EKC2025) (Invited talk, Wien, Austria, 25-28 Auguest 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Optics and Photonics Congress 2025 (OPC2025), (Invited talk, Jeju-si, South Korea, 6-9 July, 2025)

    2025

• Nitrogen-vacancy scanning imaging of a room-temperature skyrmion lattice in a van der Waals ferromagnet Fe3-xGaTe2, DPG spring meeting 2025, (Contributed talk, Regensburg, Germany, 16-21 March, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Gwangju Institute of Science and Technology, School of Electrical Engineering and Computer Science (Invited talk, Gwangju, Korea, February 25, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Gwangju Institute of Science and Technology, Department of Physics and Photon Science (Invited talk, Gwangju, Korea, February 24, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, University of Ulsan, Department of Physics (Invited talk, Ulsan, Korea, February 21, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Pukyong National University, Department of Physics (Invited talk, Busan, Korea, February 20, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Pusan National University, Department of Physics (Invited talk, Busan, Korea, February 20, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Korea Atomic Energy Research Institute (Invited talk, Daejeon, Korea, February 18, 2025)

• Quantum sensing with NV centers: nanoscale magnetometry, Gachon University, College of Semiconductor (Invited talk, Seongnam, Korea, February 17, 2025)

    2024

• Optical detection of the orbital Hall effect in a light metal Ti, International Conference on Magnetism 2024 (ICM2024) (Invited talk, 30 June - 5 July 2024)

• Magneto-optical detection of the orbital Hall effect in a light metal Ti, Goldsmiths' seminar series at the University of Cambridge, Department of Materials Science and Metallurgy (Invited talk, 2 May 2024)

    2023

• Direct optical detections of the orbital angular momentum accumulation driven by the orbital Hall effect, Europe-Korea Conference (EKC) 2023 (Oral, Munich, Germany, 14-18 Aug. 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, Peter Grünberg Institut (PGI) - Forschungszentrum Jülich (Invited talk, Jülich, Germany, 2 Aug. 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, Kyungpook National University (Invited talk, Seminar, Daegu, Korea, 13 July 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, Ulsan National Institute of Science and Technology (UNIST) (Invited talk, Seminar, Ulsan, Korea, 12 July 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, Ulsan University (Invited talk, Ulsan, Korea, 11 July 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, Advanced Photonics Research Institute (APRI) (Invited talk, Gwangju, Korea, 10 July 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, Gwangju Institute of Science and Technology (GIST) (Invited talk, Gwangju, Korea, 10 July 2023)

• Direct Observation of the Orbital Hall Effect in a Light Metal Ti, SCES 2023 (Poster, Songdo, South Korea, 2-7 July 2023)

• Optical detection of the orbital Hall effect in a light metal Ti, DPG spring meeting 2023 (Contributed talk, 26-31 March 2023, Dresden, Germany)

2022

• Direct detection of the orbital Hall effect in a light metal Ti, SPICE Orbitronics (Poster, July 19-22, 2022, Ingelheim, Germany)

• Optical methodologies for detections of spin, magnon, and orbital, The Korean Magnetics Society Summer Meeting (Contributed talk, May 25-27, 2022, Jeju, Korea).

• Nonlinear optical Hall effect in a Weyl semimetal WTe2, American Physical Society March Meeting (Contributed talk, March 14th, 2022, Online, USA).

• Charge accumulation driven by pseudo-hydrodynamics of quasiparticles in a semimetal WTe2 at room temperature,  American Physical Society March Meeting (Poster, March 14th, 2022, Online, USA)

2021

• Static and time-resolved optical detection of magnetization vectors by spin Hall effect, Korean Magnetics Society Summer Meeting (Poster, July 21-23, 2021, online, Korea)

• Charge Accumulation Driven by Fluid-Like Flow of Quasiparticles in a Semimetal WTe2 at Room Temperature, Material Research Society Fall Meeting & Exhibit (Oral, Nov. 29-Dec. 12, 2021, Boston, MA, USA)

• Time-Resolved Optical Detection of Magnetization Vectors Driven by Pulsed Spin-Orbit Torque, Material Research Society Fall Meeting & Exhibit (Contributed talk, Nov. 29-Dec. 12, 2021, Boston, MA, USA)

• Optical detection of static and time-resolved magnetization vectors driven by spin Hall effect, The Korean Physical Society Fall Meeting (Contributed talk, Oct. 20-22, 2021, Online, Korea)

• Electrically-induced high-order optical Hall effect in Weyl semimetal, The Korean Physical Society Spring Meeting (Contributed talk, April 21-23, 2021, Online, Korea)

~2020

• Time-resolved observation of precessional motion of the magnetization vector driven by spin-orbit torque, International Conference on Advanced Materials and Devices (Poster, Dec. 10-13, 2019, Jeju, Korea)

• Interfacial thermal boundary resistance between WSe2 monolayers, The Korean Physical Society Spring Meeting (Contributed talk, April 25-27, 2018, Daejeon, Korea)

• Ultrafast transient-photocarrier relaxation through the topological surface state of Bi1.5Sb0.5Te1.7Se1.3, American Physical Society 2017 March meeting conference (Contributed talk, March 13-17, 2017, New Orleans, LA, USA)

• Ultrafast dynamics of photo-excited surface carriers in the bulk-insulating topological insulator Bi1.5Sb0.5Te1.7Se1.3, The Korean Physical Society Fall Meeting (Contributed talk, Oct. 25-27, 2017, Gyeongju, Korea)

• Thermal transport measurement in thin films and their boundaries by using time-domain thermoreflectance (TDTR) method, Korean Physical Society Spring Meeting (Poster, April 19-21, 2017, Daejeon, Korea)

• Ultrafast transient-photocarrier-induced saturable absorption behavior of topological insulator Bi1.5Sb0.5Te1.7Se1.3, Korean Physical Society Fall Meeting (Poster, Oct. 19-21, 2016, Gwangju, Korea)

• Ultrafast dynamics observation of bulk-to-surface carrier injection of Dirac-electron of surface state in the topological insulator Bi1.5Sb0.5Te1.7Se1.3, Korean Physical Society Spring Meeting (Poster, April 20-22, 2016, Daejeon, Korea)

• Strategy of a thermal conductivity measurement of topological insulators using a time-domain thermoreflectance technique, Korean Physical Society Fall Meeting (Poster, Oct. 21-23, 2015, Gyeongju, Korea)