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)
414 2018-12-07 14:30    Spin generation from heat and light in metals file
413 2018-12-07 16:00    Novel probes of interacting electrons in 2D systems file
412 2018-12-11 16:00    Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
411 2018-12-16 16:00    Lectures on 2d Conformal Field Theory file
410 2018-12-26 16:00    Informal Workshop on Topology and Correlation file
409 2018-12-26 16:00    Brane-like defect in 3D toric code file
408 2018-12-27 16:00    Quantum Innovation (QuIN) Laboratory file
407 2019-01-07 15:00    Many-Body Invariants for Multipoles in Higher-Order Topological Insulators file
406 2019-01-09 16:00    Molecular Mott state in the deficient spinel GaV4S8 file
405 2019-01-23 16:00    Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
404 2019-02-21 16:00    B-meson charged current anomalies - Theoretical status file
403 2019-02-25 16:00    Spring 2019: Physics Colloquium file
402 2019-03-21 16:00    Spring 2019: Physics Seminar Serises file
401 2019-03-26 15:00    Consideration of thermal Hall effect in frustrated and un-frustrated quantum magnets file
400 2019-03-29 14:30    Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file
399 2019-03-29 16:00    Coherent Quantum Control and Magnetism on atoms – Trapped ion and ESR STM file
398 2019-04-04 16:00    Chiral spin-photon interaction at nanoscale file
397 2019-04-11 16:00    Massive screening for cathode active materials using deep neural network file
396 2019-04-19 11:00    First-principles studies of semiconductors for solar cell applications file
395 2019-04-19 14:30    A family of finite-temperature electronic phase transitions in graphene multilayers file