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)
505 2012-04-02 16:00    A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4
504 2024-11-18 10:30    Manipulation of antiferromagnetic magnon polarization in synthetic antiferromagnets
503 2020-12-10 13:55    Consistency of Boltzmann equation and light dark matter from inflaton decay
502 2016-09-05 16:00    Physics Colloquium : 2016 Fall file
501 2024-07-03 16:00    [High Energy Theory Seminar] Holographic duals of Higgsed Dpb(BCD)
500 2021-01-28 15:00    Topological Transport of Deconfined Hedgehogs in Magnets file
499 2018-12-26 16:00    Informal Workshop on Topology and Correlation file
498 2021-06-22 17:00    Spintronics meets Quantum Materials file
497 2024-12-06 16:00  Vladimir Y. Chernyak  Bright Squeezed Light (BSL) Spectroscopy with Interferometry from First Principles
496 2021-06-08 10:00    Photonic crystal devices for sensing file
495 2023-06-30 11:00    The Dual Mode Quantum Computer file
494 2023-11-29 10:00    [High Energy Theory Seminar] Averaged null energy and the renormalization group
493 2020-09-14 17:30    KAIST Global Forum for Spin and Beyond (Third Forum) file
492 2024-11-13 12:00    [11/13(수) 물리학과 세미나 안내] Separability as a window to mixed-state quantum phases and phase transitions / Tarun Grover (UC San Diego, Associate Professor)
491 2022-11-03 13:00    [High-Energy Theory Seminar] Supersymmetric observables via Fermi-gas method
490 2024-10-31 13:00    Mini-workshop on first-principles DFT methods and applications
489 2019-07-08 14:00    Ultrabroadband squeezed pulses and their relation to relativity file
488 2023-04-05 16:00    [High Energy Theory Seminar]Anomalies of Discrete 1-Form Symmetries in QCD-like Theories
487 2024-03-27 16:00    [High Energy Theory Seminar] The Callan Rubakov Effect
486 2023-02-20 17:00    (Optics Seminar) Neural Holography for Next generation Virtual and Augmented Reality Displays file