Dr. Gwanho Yoon

Postdoctoral researcher

Mechanical Engineering

Pohang University of Science and Technology (POSTECH), Korea

Education

2015 - 2020

Ph.D. in Mechanical Engineering

Pohang University of Science and Technology (POSTECH), Korea

Advisor: Prof. Junsuk Rho

‚Äč

2008 - 2015

B.S. in Mechanical Engineering

Pohang University of Science and Technology (POSTECH), Korea

Research Experience

  • Development of RCWA software based on Matlab & Python

  • Optical metasurface design for lenses, holograms and color filters

  • Nanofabrication based on electron beam lithography and nanoimprint

  • Optical experiments of imaging and ellipsometry

Honors & Awards

  • Gold award, the 15th Samsung Electro-Mechanics paper competition, Korea, 2019.11.18

  • SPIE Optics & Photonics Education Scholarship, the International Society for Optics & Photonics (SPIE), USA, 2019.06.03

  • Forbes 30 under 30 Asia 2019, Healthcare & Science, Forbes, USA, 2019.04.02

  • Iksung Thesis Award, Department of Mechanical Engineering, Pohang University of Science and Technology, Korea, 2018.12.06

  • Silver Award, 2018 BK21+ paper competition, Department of Mechanical Engineering, Pohang University of Science and Technology, Korea, 2018.12.06 

  • Globalink Research Award, National Research Foundation of Korea (NRF) & Mathematics of Information Technology and Complex Systems (Mitacs), Korea, 2018.01.24 - 2018.04.25 

  • NRF-DAAD Fellowship, Summer Institute Program, National Research Foundation of Korea (NRF) & German Academic Exchange Service (DAAD), Korea, 2016.07.04 - 2016.09.04 (Host Academic Supervisor: Prof. Monika Fleischer at University of Tuebingen, Germany)

Publications

  1. Gwanho Yoon, Jaehyuck Jang, Jungho Mun, Ki Tae Nam and Junsuk Rho, "Metasurface zone plate for light manipulation in vectorial regime", Communications Physics 2, 156 (2019).

  2. Gwanho Yoon*, Jeonghyun Kim*, Jungho Mun, Dasol Lee, Ki Tae Nam and Junsuk Rho, "Wavelength-decoupled geometric metasurfaces by arbitrary dispersion control", Communications Physics 2, 129 (2019).

  3. Kwan Kim*, Gwanho Yoon*, Seungho Baek, Junsuk Rho and Heon Lee, "Facile nanocasting of dielectric metasurfaces with sub-100 nm resolution", ACS Applied Materials & Interfaces 11, 26109-26115 (2019).

  4. Gwanho Yoon, Dasol Lee and Junsuk Rho, "Demonstration of equal-intensity beam generation by dielectric metasurfaces", Journal of Visualized Experiments 148, e59066 (2019).

  5. Dasol Lee, Younghwan Yang, Gwanho Yoon, Minkyung Kim and Junsuk Rho, "Resolution enhancement of fluorescence microscopy using encoded patterns from all-dielectric metasurfaces", Applied Physics Letters 115, 101102 (2019).

  6. Inki Kim*, Gwanho Yoon*, Jaehyuck Jang*, Patrice Genevet, Ki Tae Nam and Junsuk Rho, "Outfitting next generation display with optical metasurfaces", ACS Photonics 5, 3876-3895 (2018).

  7. Gwanho Yoon, Dasol Lee, Ki Tae Nam and Junsuk Rho, "Crypto-display in dual-mode metasurfaces by simultaneous control of phase and spectral responses", ACS Nano 12, 6421-6428 (2018).

  8. Gwanho Yoon, Dasol Lee, Ki Tae Nam and Junsuk Rho, "Geometric metasurface enabling polarization independent beam splitting", Scientific Reports 8, 9468 (2018).

  9. Gwanho Yoon, Dasol Lee, Ki Tae Nam and Junsuk Rho, "Pragmatic metasurface hologram at visible wavelength: the balance between diffraction efficiency and fabrication compatibility", ACS Photonics 5, 1643-1647 (2018).

  10. Gun-Yeal Lee, Gwanho Yoon, Seung-Yeol Lee, Hansik Yun, Jaebum Cho, Kyookeun Lee, Hwi Kim, Junsuk Rho and Byoungho Lee, "Complete amplitude and phase control of light using broadband holographic metasurface", Nanoscale 10, 4237-4245 (2018).

  11. Sanghun Bang*, Jeonghyun Kim*, Gwanho Yoon, Takuo Tanaka and Junsuk Rho, "Recent advances in tunable and reconfigurable metamaterials", Micromachines 9, 560 (2018).

  12. Dasol Lee, Sung Yong Han, Yeonggyo Jung, Duc Minh Nguyen, Jeonghoon Chae, Gwanho Yoon, Jungho Mun, Jae Hyuck Lee, Jong G. Ok, Gun Young Jung, Hui Joon Park, Kyunghoon Kim and Junsuk Rho, "Polarization-sensitive tunable absorber in visible and near-infrared regimes", Scientific Reports 8, 12393 (2018).

  13. Gwanho Yoon*, Sunae So*, Minkyung Kim, Jungho Mun, Renmin Ma and Junsuk Rho, "Electrically tunable metasurface perfect absorber for infrared frequencies", Nano Convergence 4, 36 (2017).

  14. Minkyung Kim, Kan Yao, Gwanho Yoon, Inki Kim, Yongmin Liu and Junsuk Rho, "A broadband optical diode for linearly polarized light using symmetry-breaking metamaterials", Advanced Optical Materials 5, 1700600 (2017).

  15. Dasol Lee*, Minkyung Kim*, Sunae So*, Inki Kim, Gwanho Yoon, Kyunghoon Kim and Junsuk Rho, "Demonstration of a hyperlens-integrated microscope and super-resolution imaging", Journal of Visualized Experiments 127, e55968 (2017).

  16. Gwanho Yoon*, Inki Kim*, Sunae So, Jungho Mun, Minkyung Kim and Junsuk Rho, "Fabrication of three-dimensional suspended, interlayered and hierarchical nanostructures by accuracy-improved electron beam lithography overlay", Scientific Reports 7, 6668 (2017).

  17. Sohail Abdul Jalil, Mahreen Akram, Gwanho Yoon, Ayesha Khalid, Dasol Lee, Niloufar Raeis-Hosseini, Sunae So, Inki Kim, Qazi Salman Ahmed, Junsuk Rho and Muhammad Qasim Mehmood, "High refractive index Ti3O5 films for dielectric metasurfaces", Chinese Physics Letters 34, 088102 (2017).

  18. Gwanho Yoon*, Inki Kim* and Junsuk Rho, "Challenges in fabrication towards realization of practical metamaterials", Microelectronic Engineering 163, 7-20 (2016).