Myoung-Hwan Kim
Assistant Professor
Ph.D. The State University of New York at Buffalo, 2010
M.S. POSTECH, South Korea, 1999
B.S. Hanyang Univ., South Korea, 1997
Office: Cavalry 206
Phone: (956) 882-7852
Email: myounghwan.kim@utrgv.edu
Group Webpage: http://faculty.utrgv.edu/myounghwan.kim/index.htm
Teaching
General Physics II
Optics
Solid State Physics
Research
My research interests are to understand the novel physical properties of strongly correlated materials of fundamental interest, and to further develop their potential for infrared (IR) and terahertz (THz) applications, especially in the field of metasurfaces and nanophotonics.
IR/THz Reconfigurable Metasurfaces: Two-dimensional arrays of optical antennas with subwavelength dimensions are called ‘Metasurfaces’. It provides spatially-varying optical phase, amplitude, and polarization which can mold the wavefront of light. IR/THz metasurfaces are beneficial for making chemical and biomedical sensing devices, security screening devices, energy harvesting devices, and many others. My research is focused on new IR/THz metasurface elements and its application with active materials in free space or integrated nanophotonic devices. This research includes full-wave simulation (FDTD), nanofabrication, and IR/THz spectroscopy measurement.
IR Anomalous Hall Effect: The Hall effect, discovered by Edwin H. Hall at 1879, describes how moving charges are deflected by a magnetic field in conductors. It gave birth to semiconductor physics and solid-state electronics in 1940’s. Several years later, the stronger Hall effect was found in ferromagnetic conductors, named as the anomalous Hall effect (AHE). Most of anomalous mechanisms still remains unknown. My research is focused on the understanding of the unusual classical and quantum behavior of moving charges near magnetic impurities in IR/THz spectral ranges. This study involves IR/THz magneto-polarimetry measurements in strong AHE materials at low temperatures.
Selected Publications
1. "Metasurface-assisted phase-matching-free second harmonic generation in lithium niobate waveguides," C. Wang, Z. Li, M.-H. Kim, X. Xiong, X.-F. Ren, G.-C. Guo, N. Yu, and M. Loncar, Nature Communications, vol. 8, page 2098 (2017).
2. "Controlling propagation and coupling of waveguide modes using phase-gradient metasurfaces," Z. Li, M.-H. Kim, C. Wang, Z. Han, S. Shrestha, A. C. Overvig, M. Lu, A. Stein, A. M. Agarwal, M. Loncar, and N. Yu, Nature Nanotechnology, vol. 12, pages 675 - 683 (2017).
3. "Photothermal response in dual-gated bilayer graphene," M.-H. Kim, J. Yan, R. J. Suess, T. E. Murphy, M. S. Fuhrer, and H. D. Drew, Phys. Rev. Lett. Vol. 110, 247402 (2013).
4. "Dual-gated bilayer graphene hot electron bolometer," J. Yan, M.-H. Kim, J. A. Elle, A. B. Sushkov, G. S. Jenkins, H. M. Milchberg, M. S. Fuhrer, and H. D. Drew, Nature Nanotechnology Vol. 7, 472 – 478 (2012).