Ultrafast refractive index control of terahertz graphene metamaterials

Seung Hoon Lee, Jeongmook Choi, Hyeon Don Kim, Hyunyong Choi, Bumki Min

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present an ultrafast dynamics of THz graphene-metamaterial hybrid devices, where the refractive index and the conductivity are largely modulated by electrical and optical methods. Unprecedentedly large modulation of refractive index and the pump-induced effective negative conductivity are investigated by an ultrafast time-resolved optical-pump THz-probe spectroscopy with varying gate voltage.

Original languageEnglish
Title of host publication2013 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013
DOIs
Publication statusPublished - 2013 Oct 18
Event10th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013 - Kyoto, Japan
Duration: 2013 Jun 302013 Jul 4

Publication series

NamePacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest

Other

Other10th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013
CountryJapan
CityKyoto
Period13/6/3013/7/4

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Lee, S. H., Choi, J., Kim, H. D., Choi, H., & Min, B. (2013). Ultrafast refractive index control of terahertz graphene metamaterials. In 2013 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013 [6600283] (Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest). https://doi.org/10.1109/CLEOPR.2013.6600283