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Conferences > CLEOPR > 2013 > ThI2 > ThI2_1
  • 2013 Conference on Lasers and Electro-Optics Pacific Rim
  • (Optica Publishing Group, 2013),
  • paper ThI2_1

Ultrafast Refractive Index Control of Terahertz Graphene Metamaterials

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

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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.

© 2013 IEICE

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