Ultrafast refractive index control of gate-controlled graphene-metamaterial hybrid devices

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

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 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, CLEO 2013
PublisherIEEE Computer Society
ISBN (Print)9781557529725
Publication statusPublished - 2013 Jan 1
Event2013 Conference on Lasers and Electro-Optics, CLEO 2013 - San Jose, CA, United States
Duration: 2013 Jun 92013 Jun 14

Other

Other2013 Conference on Lasers and Electro-Optics, CLEO 2013
CountryUnited States
CitySan Jose, CA
Period13/6/913/6/14

Fingerprint

Graphite
Metamaterials
Graphene
Refractive index
Pumps
Modulation
Spectroscopy
Electric potential

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

Choi, J., Lee, S. H., Kim, H. D., Min, B., & Choi, H. (2013). Ultrafast refractive index control of gate-controlled graphene-metamaterial hybrid devices. In 2013 Conference on Lasers and Electro-Optics, CLEO 2013 [6834463] IEEE Computer Society.
Choi, Jeongmook ; Lee, Seung Hoon ; Kim, Hyeon Don ; Min, Bumki ; Choi, Hyunyong. / Ultrafast refractive index control of gate-controlled graphene-metamaterial hybrid devices. 2013 Conference on Lasers and Electro-Optics, CLEO 2013. IEEE Computer Society, 2013.
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Choi, J, Lee, SH, Kim, HD, Min, B & Choi, H 2013, Ultrafast refractive index control of gate-controlled graphene-metamaterial hybrid devices. in 2013 Conference on Lasers and Electro-Optics, CLEO 2013., 6834463, IEEE Computer Society, 2013 Conference on Lasers and Electro-Optics, CLEO 2013, San Jose, CA, United States, 13/6/9.

Ultrafast refractive index control of gate-controlled graphene-metamaterial hybrid devices. / Choi, Jeongmook; Lee, Seung Hoon; Kim, Hyeon Don; Min, Bumki; Choi, Hyunyong.

2013 Conference on Lasers and Electro-Optics, CLEO 2013. IEEE Computer Society, 2013. 6834463.

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

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Choi J, Lee SH, Kim HD, Min B, Choi H. Ultrafast refractive index control of gate-controlled graphene-metamaterial hybrid devices. In 2013 Conference on Lasers and Electro-Optics, CLEO 2013. IEEE Computer Society. 2013. 6834463