visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-11-10 16:00 
연사  
장소 E6-2. #1323(1st fl.) 

Low Dimensional Active Plasmonics and Electron Optics in Graphene

 

Nov. 10th(Thu) 4 p.m., E6-2. #1323(1st fl.)
Prof. Min Seok Jang, Electrical Engineering, KAIST

 

 

The field of plasmonics has been attracting wide interest because it has provided routes to guide and localize light at nanoscales by utilizing metals as its major building block. Meanwhile, graphene, a two-dimensional lattice of carbon atoms, has been regarded as a candidate material for future electronic applications owing to its remarkably high carrier mobility and superior thermal properties. Both research fields have been growing rapidly, but quite independently. However, a closer look reveals that there are actually numerous similarities between them, and it is possible to extract useful applications from these analogies. Even more interestingly, these research fields are recently overlapping to create a new field of research, namely graphene plasmonics, which offers a unique platform to dynamically modulate light with unprecedented spatial and temporal resolutions.

 

In this talk, I will present a few examples of these intertwined topics. First, I will introduce “rainbow trapping” structures, broadband plasmonic slow light systems composed of single or double negative materials, and clarify the mode-conversion mechanism and the light-trapping performance by analyzing the dispersion relation. I will then show that electrons in graphene exhibit photon-like dynamics and how this analogy between photonics and electronics can inspire to solve an interesting problem of electron backscattering in graphene field effect transistors. Finally, I will present how the surface plasmons in graphene can be harnessed to create infrared metasurfaces that have tunable optical properties including extreme light-matter interaction and macroscopic modulation of light absorption and thermal emission.

 

Contact: Contact: Min-kyo Seo, Physics Dept. (T.2517)

 

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
526 2015-09-14 14:00    Ultrafast X-ray Studies on Dynamics Matter in Extreme Conditions
525 2016-09-22 15:30    Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
524 2016-09-22 15:30    Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
523 2024-06-12 16:00    New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part2 file
522 2024-06-03 11:00    New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part1 file
521 2024-05-29 16:00    [High Energy Theory Seminar] Amplitudes Meet Cosmology: From Inflation to the Large-Scale Structure
520 2016-05-19 16:00    Nonlinear/quantum optical effect in silicon nano-photonics
519 2021-04-02 16:00    Van der Waals heterostructures for orbital gating-based phototransistors and electronic spectroscopy
518 2015-10-23 15:00    Development of a Rogowski Coil as a new beam position monitor
517 2019-06-24 11:00    Topological photonic anomalies file
516 2016-09-21 16:00    Entanglement probe of two-impurity Kondo physics
515 2019-01-09 16:00    Molecular Mott state in the deficient spinel GaV4S8 file
514 2016-11-16 16:00    Realizing Haldane Model in Fe-based Honeycomb Ferromagnetic Insulators
513 2024-07-18 11:00    Acousto-electric non-local detection of magnon-phonon coupling
512 2016-05-13 16:00    Graphene analogue in (111)- BaBiO3 bilayer heterostructures for topological electronics
511 2021-12-03 16:00    Nonequilibrium Heat Transport in Elemental Metals Probed by an Ultrathin Magnetic Thermometer file
510 2018-07-27 15:00    Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima file
509 2018-07-27 15:00    Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima file
508 2023-11-16 16:00    Electric-field control of emergent phenomena in correlated oxide thin films
507 2022-07-14 14:15    Hund and electronic correlations in ruthenium-based systems